local government energy program energy audit final report

Steven Winter Associates, Inc. 293 Route 18, Suite 330 Telephone (866) 676-1972 Building Systems Consultants East Brunswick, NJ 08816 Facsimile (203) 852-0741 www.swinter.com

June 9, 2010

Local Government Energy Program Energy Audit Final Report

Bergen Community College 400 Paramus Road Paramus, NJ 07652

Project Number: LGEA51

Steven Winter Associates, Inc. - LGEA Report Bergen Community College /206

TABLE OF CONTENTS

EXECUTIVE SUMMARY ........................................................................................................... 3

INTRODUCTION ....................................................................................................................... 6

HISTORICAL ENERGY CONSUMPTION.............................................................................................. 7

EXISTING FACILITY AND SYSTEMS DESCRIPTION .............................................................24

PITKIN EDUCATION CENTER .................................................................................................................... 24 WEST HALL ................................................................................................................................................ 40 ENDER HALL .............................................................................................................................................. 47 TECHNOLOGY EDUCATION BUILDING ..................................................................................................... 55 CIARCO LEARNING CENTER ..................................................................................................................... 62

PROPOSED ENERGY CONSERVATION MEASURES ...........................................................70

PROPOSED FURTHER RECOMMENDATIONS .................................................................... 100

APPENDIX A: EQUIPMENT LIST .......................................................................................... 105

APPENDIX B: LIGHTING STUDY .......................................................................................... 141

APPENDIX C: THIRD PARTY ENERGY SUPPLIERS ........................................................... 171

APPENDIX D: GLOSSARY AND METHOD OF CALCULATIONS ........................................ 173

APPENDIX E: STATEMENT OF ENERGY PERFORMANCE FROM ENERGY STAR .......... 177

APPENDIX F: INCENTIVE PROGRAMS ................................................................................ 178

APPENDIX G: ENERGY CONSERVATION MEASURES ...................................................... 180

APPENDIX H: INDIVIDUAL ECMS IN ORDER OF PAYBACK PERIOD ............................... 189

APPENDIX I: COLOR DECODER FOR USE WITH APPENDICES ....................................... 197

APPENDIX J: PHOTOVOLTAIC SHADING ANALYSIS ........................................................ 198

APPENDIX K: METHOD OF ANALYSIS ................................................................................ 206


EXECUTIVE SUMMARY Bergen Community College is a campus that has five separate buildings, comprising a total conditioned floor area of 825,000 square feet. Each building was built and renovated as the campus expanded. The following chart provides an overview of current energy usage in the buildings based on the analysis period of March 2008 through February 2009 as well as the proposed savings resulting from implementation of suggested energy conservation measures:

Table 1: Bergen Community College—Energy Usage Statistics

Electric Usage

(kWh/year)

Gas Usage (Therms/year)

Current Annual Cost

of Energy ($/year)

Site Energy Use

Intensity (kBtu/sqft-

year)

Joint Energy Consumption (MMBtu/year)

Current 15,477,180 302,814 2,072,259 100.6 82,987 Proposed 12,746,199 250,830 1,493,632 83.0 68,470 Savings 2,730,981 51,984 578,627 17.6 14,517

% Savings 18 17 28 17 17 *The Solar Photovoltaic system recommendation is excluded from this table

**Total Annual Cost savings is equal to energy cost savings plus incurred operations and maintenance savings

Table 2: Bergen Community College – Proposed Maximum Renewable Energy Systems

Initial Investment,

$

Total Recommended

System Capacity

Electricity Generated, (kWh/year)

Demand Reduction

(kW)

SRECs earned (SRECs/year)

Total Revenue ($/year)

7,650,000 1.02 MW Solar PV 1,182,493 1,020.0 1,182 *$877,549

*Revenue generated from producing electricity and collecting Solar Renewable Energy Credits (SRECs) has been factored into the total revenue.

In addition to the recommended Energy Conservation Measures (ECMs), it may also be necessary to increase facility funding as well as increase staff to ensure that all measures are implemented and maintained as recommended. There may be energy procurement opportunities for Bergen Community College to reduce annual utility costs, which are $30,470 higher when compared to the average estimated NJ commercial utility rates. SWA assumes that the average electric rate for commercial buildings in NJ is $0.150/kWh and the average natural gas rate is $1.550/therm, based on current energy prices and similar commercial buildings audited in the previous 24 months. SWA recommends that the Bergen Community College further negotiate with their natural gas third-party supplier in order to reduce the natural gas rate at both the Main Campus and Ciarco Learning Center and ultimately reduce the annual cost of energy. SWA has also entered energy information about the Bergen Community College in the U.S. Environmental Protection Agency’s (EPA) Energy Star Portfolio Manager energy benchmarking system. The entire campus is comprised of non-eligible (“Other”) space type. An energy performance score cannot be generated for campus-level buildings. Portfolio Manager computed that the entire campus Site Energy Use Intensity (SEUI) to be 98.0 kBtu/sqft-year, which is better than the average comparable campus (SEUI) of 120.0 by 18%.


Based on the current state of the building and its energy use, SWA recommends implementing various energy conservation measures from the savings detailed in Table 1 as well as the installation of renewable energy systems detailed in Table 2. The measures are categorized by the payback period in Table 3 below:

Table 3: Energy Conservation Measure Recommendations*

ECMs Savings ($)

Simple Payback Period (years)

Initial Investment,

$

CO2 Savings, lbs/yr

0-5 Year 430,665 2.4 1,015,044 3,136,780 5-10 Year 125,099 8.5 1,066,478 1,019,063 >10 Year 22,864 12.2 279,343 193,811 Solar PV 877,549 8.1 7,630,000 1,620,015

Total 1,456,177 6.9 9,990,865 5,969,669

SWA estimates that implementing the recommended ECMs is equivalent to removing approximately 481 cars from the roads each year or avoiding the need of 14,099 trees to absorb the annual CO2 generated. Other recommendations to increase building efficiency pertaining to operations and maintenance and capital improvements are listed below:

Further Recommendations: SWA recommends that Bergen Community College further explore the following: • Capital Improvements

o Replace electric baseboard and electric cabinet heaters o Review supply air quantities from central plant air handling units o Upgrade Building Automation System (BAS) o Install combined heat, cool and power system (tri-generation) o Install wireless sub-meters for electricity and gas o Replace air handling units o Replace rooftop package units o Replace exhaust fans o Install premium efficiency motors

• Operations and Maintenance

o Shut down kitchen hood fans during unoccupied hours o Remove lab hood fan from above Science Classroom o Confirm the operation of the intake and exhaust dampers on the air handling units o Confirm the night setback temperature set-points for all HVAC equipment o Reset temperature set-point for the Elevator Room in West Hall o Inspect and replace gaskets around doors for walk-in refrigerator and for walk-in

freezers o Check water levels in the expansion tanks, and check the integrity of the tank bladder


o Use Energy Star labeled appliances o Provide easy access to all mechanical equipment o Maintain roofs o Maintain downspouts o Provide weather-stripping/air-sealing o Repair/seal wall cracks and penetrations o Provide water-efficient fixture aerators and sensors o Use smart power electric strips o Create an energy educational program

Financial Incentives and Other Program Opportunities There are various incentive programs that Bergen Community College could apply for that could also help lower the cost of installing the ECMs. SWA recommends that Bergen Community College apply to participate in the SmartStart and Pay-for-Performance programs through the New Jersey Office of Clean Energy. Bergen Community College meets the requirements to participate in the Pay-for-Performance program based on its size and projection to reduce energy consumption by at least 15%. Bergen Community College would not be eligible to participate in the Direct Install program since the buildings involved in the study have at least one month with an electrical demand of greater than 200 kW. Please refer to Appendix F for details.


INTRODUCTION Launched in 2008, the LGEA Program provides subsidized energy audits for municipal and local government-owned facilities, including offices, courtrooms, town halls, police and fire stations, sanitation buildings, transportation structures, schools and community centers. The Program will subsidize up to 100% of the cost of the audit. The Board of Public Utilities (BPUs) Office of Clean Energy has assigned TRC Solutions to administer the Program. Steven Winter Associates, Inc. (SWA) is a 37-year-old architectural/engineering research and consulting firm, with specialized expertise in green technologies and procedures that improve the safety, performance, and cost effectiveness of buildings. SWA has a long-standing commitment to creating energy-efficient, cost-saving and resource-conserving buildings. As consultants on the built environment, SWA works closely with architects, developers, builders, and local, state, and federal agencies to develop and apply sustainable, ‘whole building’ strategies in a wide variety of building types: commercial, residential, educational and institutional. SWA performed an energy audit and assessment for five buildings that are owned by Bergen Community College. The audit included a review of the:

• Pitkin Education Center (400 Paramus Road, Paramus, NJ) • West Hall (400 Paramus Road, Paramus, NJ) • Ender Hall (400 Paramus Road, Paramus, NJ) • Technology Education Building (400 Paramus Road, Paramus, NJ) • Ciarco Learning Center (355 Main Street, Hackensack, NJ)

The process of the audit included multiple facility visits from January 2010 through February 2010, benchmarking and energy bills analysis, assessment of existing conditions, energy modeling, energy conservation measures and other recommendations for improvements. The scope of work includes providing a summary of current building conditions, current operating costs, potential savings, and investment costs to achieve these savings. The facility description includes energy usage, occupancy profiles and current building systems along with a detailed inventory of building energy systems, recommendations for improvement and recommendations for energy purchasing and procurement strategies. The goal of this Local Government Energy Audit (LGEA) is to provide sufficient information to Bergen Community College to make decisions regarding the implementation of the most appropriate and most cost-effective energy conservation measures for all audited campus buildings.


HISTORICAL ENERGY CONSUMPTION

Energy usage, load profile and cost analysis

SWA reviewed utility bills from February 2007 through February 2009 that were received from the utility companies supplying Bergen Community College with electricity and natural gas. A 12-month period of analysis from March 2008 through February 2009 was used for all calculations and for purposes of benchmarking the building. The Main Campus located at 400 Paramus Road, Paramus, NJ consists of the Pitkin Education Center, West Hall, Ender Hall and the Technology Building. All buildings located at the Main Campus are connected to a single meter for electricity and a single meter for Natural Gas. The Ciarco Learning Center building is located at 355 Main Street, Hackensack, NJ. Ciarco Learning Center contains 1 meter for electricity and 1 meter for natural gas. A separate analysis was conducted for each meter; thus a single billing analysis was completed for all Main Campus buildings and a separate analysis was completed for Ciarco Learning Center.

Main Campus Electricity - The Main Campus is currently served by one electric meter. The Main Campus currently buys electricity from Hess Corporation, which is the third party supplier and PSE&G, which is the delivery company. The Main Campus previously purchased electricity from Pepco Energy Services, Inc., however the campus has switched to Hess within the past 12 months. Utility bills that were analyzed were received from Pepco. In total, the Main Campus purchases electricity at an average aggregated rate of $0.142/kWh. The Main Campus purchased approximately 14,605,180 kWh, or $2,072,259 worth of electricity, in the previous year. The average monthly demand was 2,810.3 kW and the annual peak demand was 3,484.3kW.


Figure 1: Main Campus Annual Electric Usage (kWh) and Cost ($)

Electric bill analysis shows that energy usage follows a trend line as expected throughout the year. Electricity usage peaks during the summer months when electricity is being used the most for cooling. There is a slight dip in August which is representative of the summer break for the school when classes are reduced to summer sessions only. Natural gas - The Main Campus is currently served by one meter for natural gas. The Main Campus currently buys natural gas from Pepco Energy Services, Inc., which is the third party supplier and PSE&G, which is the delivery company. The Main Campus previously purchased natural gas from Woodruff Energy Company; however the campus has switched to Pepco within the past 12 months. Utility bills that were analyzed were received from Woodruff. In total, the Main Campus purchases natural gas at an average aggregated rate of $1.642/therm. The Main Campus purchased approximately 281,755 therms, or $462,657 worth of natural gas, in the previous year.

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Figure 2: Main Campus Annual Natural Gas Usage (therms) and Cost ($).

Natural gas analysis follows a trend line as expected, peaking during the winter months when natural gas is used mostly for space heating. Natural gas usage is minimal during the summer months, when space heating is not required. Natural gas is used for heating as well as base loads such as domestic hot water, cafeteria cooking and other minor uses.

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Figure 3: Main Campus Natural Gas Usage (therms) and Heating Degree Days (HDD)

Natural gas analysis in Figure 3 shows that gas usage closely follows the same pattern as Heating Degree Days (HDD). HDD is a metric used to indicate the amount of space heating required for a building based on outside air temperatures. HDD compares outside temperatures to a reference temperature that indicates a threshold for when a building requires heating. The following pie charts and table show energy use for the Main Campus based on utility bills for the 12-month analysis period. Note: electrical cost at $42/MMBtu of energy is more than 2. 5 times as expensive as natural gas at $16/MMBtu

Figure 4: Main Campus Annual Energy Consumption/Costs

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Natural Gas Usage (therms) vs. Heating Degree Days (HDD)

Natural Gas Usage (therms)Heating Degree Days (HDD)

MMBtu % MMBtu $ % $ $/MMBtu26,286 34% $1,093,079 43% 422,621 3% $108,992 4% 421,459 2% $60,671 2% 42

19,324 25% $803,571 32% 42143 0% $2,348 0% 42

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49,833 64% $2,072,259 82% 4228,175 36% $462,657 18% 1678,008 100% $2,534,916 100%

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Electric Miscellaneous

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Totals

Total Electric UsageTotal Gas Usage

Totals


Figure 5: Main Campus Annual Energy Consumption (MMBtu)

Figure 6: Main Campus Annual Energy Costs ($)



Electric For Heating

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Building Space Heating (Gas)

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Electric For CoolingElectric For

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Annual Energy Costs ($)


Ciarco Learning Center Electricity - The Ciarco Learning Center is currently served by one electric meter. The Ciarco Learning Center currently buys electricity from Hess Corporation, which is the third party supplier and PSE&G which is the delivery company. The building previously purchased electricity from Pepco Energy Services, Inc., however the building has switched to Hess within the past 12 months. Utility bills that were analyzed were received from Pepco. In total, the building purchases electricity at an average aggregated rate of $0.148/kWh. The building purchased approximately 872,000 kWh, or $129,196 worth of electricity, in the previous year. The average monthly demand was 165.6 kW and the annual peak demand was 212.0 kW.

Figure 7: Ciarco Annual Electric Usage (kWh) and Cost ($)

Electric bill analysis shows that energy usage follows a trend line as expected throughout the year as shown in Figure 7. Electricity usage peaks during the summer months when electricity is being used the most for cooling. Natural gas - The Ciarco Learning Center is currently served by one meter for natural gas. The Ciarco Learning Center currently buys natural gas from Pepco Energy Services, Inc., which is the third party supplier and PSE&G, which is the delivery company. The building previously purchased natural gas from Woodruff Energy Company; however the building has switched to Pepco within the past 12 months. Utility bills that were analyzed were received from Woodruff. In total, the building purchases natural gas at an average aggregated rate of $1.766/therm. The building purchased approximately 21,059 therms, or $37,181 worth of natural gas, in the previous year.

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Figure 8: Ciarco Annual Natural Gas Use (therms) and Cost ($)

Natural gas analysis follows a trend line as expected, peaking during the winter months when natural gas is used mostly for space heating. Natural gas usage is minimal during the summer months, when space heating is not required. Natural gas is used for space heating as well as base loads such as domestic hot water.

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Figure 9: Ciarco Natural Gas Usage (therms) vs. Heating Degree Days (HDD)

Natural gas analysis in Figure 9 shows that gas usage closely follows the same pattern as Heating Degree Days (HDD). HDD is a metric used to indicate the amount of space heating required for a building based on outside air temperatures. HDD compares outside temperatures to a reference temperature that indicates a threshold for when a building requires heating. The following pie charts and table show energy use for the Ciarco Learning Center based on utility bills for the 12 month analysis period. Note: electrical cost at $43/MMBtu of energy is almost 2.5 times as expensive as natural gas at $18/MMBtu

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Figure 10: Ciarco Annual Energy Consumption/Costs

MMBtu % MMBtu $ % $ $/MMBtu1,278 25% $55,500 33% 43

433 9% $18,805 11% 4367 1% $2,919 2% 43

1,197 24% $51,982 31% 43220 4% $3,881 2% 18

1,886 37% $33,299 20% 185,081 100% $166,377 100%

2,975 59% $129,196 78% 432,106 41% $37,181 22% 185,081 100% $166,377 100%

Annual Energy Consumption / Costs

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Figure 11: Ciarco Annual Energy Consumption (MMBtu)

Figure 12: Ciarco Annual Energy Costs ($)




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Energy benchmarking

SWA has entered energy information about the Bergen Community College in the U.S. Environmental Protection Agency’s (EPA) Energy Star Portfolio Manager energy benchmarking system. All five buildings were entered into Portfolio Manager as separate facilities but were benchmarked together as a single campus. Main Campus The Main Campus is categorized as a College/University (“Other”) space type. Because it is an “Other” space type, there is no performance rating available. Consequently, the Main Campus is not eligible to receive a national energy performance rating at this time. The national energy performance rating can only be calculated for buildings that are individually metered. The Site Energy Use Intensity is 98.0 kBtu/sqft-year, compared to the national average of a College/University (Campus-Level) consuming 120.0 kBtu/sqft-year. See ECM section for guidance on how to improve the building’s rating. Due to the nature of the calculation used by Portfolio Manager, based upon a survey of existing buildings of varying usage, the national average for “Other” space types is very subjective and is not an absolute bellwether for gauging performance. Additionally, should Bergen Community College desire to reach this average there are other large scale and financially less advantageous improvements that can be made, such as envelope, window, door and insulation upgrades that would help the building reach this goal.

Figure 13: Main Campus Site Energy Use Intensity (kBtu/sq ft.)

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The above chart, Figure 13, shows the Site Energy Use Intensity per month for the Main Campus buildings. Total Site Energy Intensity increases during the winter months when more natural gas is required for space heating. Ciarco Learning Center Ciarco Learning Center’s billing analysis was analyzed separately because the building is separate from the Main Campus and has its own electric and gas meters. For Portfolio Manager purposes only, Ciarco Learning Center was considered part of the campus. The benchmarking score therefore included the Ciarco Learning Center. Below is a graph showing the Site Energy Use Intensity for the Ciarco building independent from the Main Campus.

Figure 14: Ciarco Site Energy Use Intensity (kBtu/sq ft.)

Total Site Energy Intensity increases during the winter months when more natural gas is required for space heating. There is also a minor peak during the winter months when electricity usage increases with building cooling loads. Per the LGEA program requirements, SWA has assisted Bergen Community College to create an Energy Star Portfolio Manager account and share the campus facilities information to allow future data to be added and tracked using the benchmarking tool. SWA has shared this Portfolio Manager Account information with Bergen Community College (user name of “BERGENCOMMUNITYCOLLEGE” with a password of “BERGENCC”) and TRC Solutions.

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Tariff analysis

As part of the utility bill analysis, SWA evaluated the current utility rates and tariffs. Tariffs are typically assigned to buildings based on size and building type. Tariff analysis is performed to determine if the rate that the college is contracted to pay with each utility provider is the best rate possible resulting in the lowest costs for electric and gas provision. Typically, the natural gas prices increase during the heating months when natural gas is used by the hot water boiler units. Some high gas price per therm fluctuations in the summer may be due to high energy costs that recently occurred and low use caps for the non-heating months. Typically, electricity prices also increase during the cooling months when electricity is used by the HVAC cooling equipment. The supplier charges a market-rate price based on use, and the billing does not break down demand costs for all periods because usage and demand are included in the rate. Currently, Bergen Community College is paying a general service rate for natural gas. Demand is not broken out in the bill. Thus the building pays for fixed costs such as meter reading charges during the summer months. The building is direct metered and currently purchases electricity at a general service rate for usage with an additional charge for electrical demand factored into each monthly bill. There general service rate for electric charges are market-rate based on use. Demand prices are reflected in the utility bills and can be verified by observing the price fluctuations throughout the year. Energy Procurement strategies

The average estimated NJ commercial utility rates for electric are $0.150/kWh and $1.550/therm for gas. Main Campus Electricity - The Main Campus currently pays a rate of $0.142/kWh. The Main Campus annual electric utility costs are lower, when compared to the average estimated NJ commercial utility rates. Electric bill analysis shows fluctuations up to 15% over the most recent 12-month period.


Figure 15: Main Campus Average Electric Price ($/kWh) and Monthly Peak Demand (kW)

The above chart, Figure 15, shows electricity costs throughout the year as compared to the NJ state average. The electricity costs are mostly below the average NJ state rate, except for when electric demand peaks, raising prices during the summer months. Natural Gas – The Main Campus pays a rate of $1.642/therm. The Main Campus annual natural gas utility costs are $25,921 higher, when compared to the average estimated NJ commercial utility rates. Natural gas bill analysis shows fluctuations up to 97% over the most recent 12 month period.

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Figure 16: Main Campus Average Natural Gas Price ($/therm)

The above chart, Figure 16, shows that the natural gas costs are similar to the NJ state average except during November 2008. Utility rate fluctuations may have been caused by adjustments between estimated and actual meter readings; others may be due to unusually high and/or recent escalating energy costs. The Main Campus already purchases both electricity and natural gas from third-party suppliers. SWA recommends that the Main Campus further negotiate with their natural gas third-party supplier in order to reduce the natural gas rate and ultimately reduce the annual cost of energy. Appendix C contains a complete list of all third-party energy suppliers for Bergen Community College’s service area. Ciarco Learning Center Electricity - The Ciarco Learning Center currently pays a rate of $0.148/kWh. The Ciarco Learning Center annual electric utility costs are lower, when compared to the average estimated NJ commercial utility rates. Electric bill analysis shows fluctuations up to 31% over the most recent 12-month period.

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Figure 17: Ciarco Average Electric Price ($/kWh) and Monthly Peak Demand (kW)

The above chart, Figure 18, shows electricity costs throughout the year as compared to the NJ state average. The electricity costs are mostly below the average NJ state rate, except for when electric demand peaks, raising prices during the summer months. Natural Gas – The Ciarco Learning Center pays a rate of $1.766/therm. The Ciarco Learning Center annual natural gas utility costs are $4,549 higher, when compared to the average estimated NJ commercial utility rates. Natural gas bill analysis shows fluctuations up to 99% over the most recent 12 month period.

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Figure 18: Ciarco Annual Natural Gas Price ($/therm)

The above chart, Figure 16, shows that the natural gas costs are similar to the NJ state average except during June and August 2008. During this time, natural gas costs appear to increase since natural gas usage is at a minimum, however monthly supply and delivery charges remain the same, inflating the cost per unit. The month of July did not show any usage and therefore the cost per unit was assumed to be $0. Utility rate fluctuations may also have been caused by adjustments between estimated and actual meter readings; others may be due to unusual high and recent escalating energy costs. The Ciarco Learning Center already purchases both electricity and natural gas from third-party suppliers. SWA recommends that Bergen Community College further negotiate with their natural gas third-party supplier in order to reduce the natural gas rate at Ciarco Learning Center and ultimately reduce the annual cost of energy. Appendix C contains a complete list of all third-party energy suppliers for Bergen Community College service area and natural gas rates.

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EXISTING FACILITY AND SYSTEMS DESCRIPTION

This section gives an overview of the current state of the facility and systems. The entire scope of work for Bergen Community College consisted of five buildings in total. Each building has been audited and evaluated independently of the others. Refer to the Proposed Further Recommendations section for specific recommendations for improvement. Pitkin Education Center

Building Characteristics The three-story, 600,000 square feet Pitkin Education Center Building was built in the 1970s. Several additions through the years have changed and expanded the building to what is today. It houses a library, a gymnasium, a pool area with locker rooms and wings for administration, business and science. This was the most recent addition and it was completed in 2009. Building Occupancy Profiles

Its occupancy is over 10,000 students, faculty and administrative personnel. It is open Monday through Friday from 6:00am until 11:00pm. Building Envelope

Due to favorable weather conditions (min. 18 deg. F delta-T in/outside and no/low wind); some exterior envelope infrared (IR) images were taken during the field audit. Thermal imaging technology helps to identify energy-compromising problem areas in a non-invasive way. General Note: All findings and recommendations on the exterior envelope (base, walls, roofs, doors and windows) are based on the energy auditors’ experience and expertise, on construction document reviews (when available) and on detailed visual analysis, as far as accessibility and weather conditions allowed at the time of the field audit.

Exterior Walls

The exterior wall envelope is mostly constructed of a precast concrete panel system and some stucco accents over a steel frame with an unconfirmed level of detectable insulation. Other areas are constructed of brick veneer and some stone tile accents over a steel frame with 1-3 inches of fiberglass batt cavity insulation. The interior is mostly painted gypsum wallboard.

Note: Most wall insulation levels could not be verified in the field or on construction plans, and are based upon similar wall types and time of construction.

Exterior and interior wall surfaces were inspected during the field audit. They were found to be in overall acceptable, age-appropriate condition with numerous signs of


uncontrolled moisture, air-leakage and other energy-compromising issues detected on all facades The following specific exterior wall problem spots and areas were identified:

The following IR images further demonstrate some of the exterior wall issues mentioned above:


Roof

The building’s roof is predominantly a flat and parapet type over steel decking with a built-up asphalt finish and gravel ballast. It is original but is gradually being replaced. Three inches of EPS (expanded polystyrene, white) foam board roof insulation were recorded. Other parts of the building are also covered by a flat and parapet type over steel decking with a dark colored EPDM single membrane finish. Three and a half inches of XPS (extruded polystyrene, blue or pink) foam board roof insulation, were recorded.

The roofs, related flashing, gutters and downspouts were reported to be in overall acceptable, age-appropriate condition, but with numerous signs of uncontrolled moisture, air-leakage and other energy-compromising issues in some older roof areas.

The following specific roof problem spots were identified:

The following IR images further illustrate some of the roof issues mentioned above:


Base

The building’s base is composed of a partial below-grade basement with a slab floor, a perimeter foundation and no detectable slab edge/perimeter insulation. Slab/perimeter insulation levels could not be verified in the field or on construction plans and are based upon similar wall types and time of construction. The building’s base and its perimeter were inspected for signs of uncontrolled moisture or water presence and other energy-compromising issues. Overall the base was reported to be in good condition with no signs of uncontrolled moisture, air-leakage and/ or other energy-compromising issues. Windows

The building contains two types of windows: 1. Fixed type windows with a non-insulated aluminum frame, clear single glazing and interior drapes or blinds in some classrooms. These windows are located throughout the building and are original to the building. 2. Fixed type windows with a non-insulated aluminum frame, tinted double glazing and interior drapes or blinds in some classrooms. The windows are located throughout the building. Windows, shading devices, sills, related flashing and caulking were inspected as far as accessibility allowed for signs of moisture, air-leakage and other energy compromising issues. Overall, the windows were found to be in acceptable/age appropriate condition but with numerous signs of uncontrolled moisture, air-leakage and/or other energy-compromising issues. The following specific window problem spots were identified:


The following IR image further illustrates some of the window issues mentioned above:

Exterior Doors

The building contains two different types of exterior doors: 1. Glass with aluminum/steel frame type exterior doors. They are located throughout the building and seem original/have never been replaced. 2. Aluminum type exterior doors. They are located throughout the building and seem original/have never been replaced. All exterior doors, thresholds, related flashing, caulking and weather-stripping were inspected for signs of moisture, air-leakage and other energy-compromising issues. Overall, the doors were found to be in poor condition with numerous signs of uncontrolled moisture, air-leakage and other energy-compromising issues. The following specific door problem spots were identified:


The following IR image further illustrates some of the door issues mentioned above:

Building air-tightness

Overall the field auditors found the building to be reasonably air-tight but with significant areas where there could be improvements, as described in more detail earlier in this section. The size of the cluster of this building makes small energy measures add up to substantial savings. In addition to all the above-mentioned findings, SWA recommends air-sealing, caulking and insulating around all structural members, recessed lighting fixtures, and electrical boxes that are part of or penetrate the exterior envelope and where air-leakage can occur. The air tightness of buildings helps maximize all other implemented energy measures and investments, and minimizes potentially costly long-term maintenance, repair and replacement expenses.

Mechanical Systems

The original building was constructed in 1972 with central heating, ventilation, and air-conditioning (HVAC). The central plant is located in the basement and part of the first floor houses chillers, boilers, and air handling units. Ducts and pipes are distributed throughout the campus in ceiling spaces or in underground trenches. Subsequent


additions in 1989 and later were either connected to the existing central plant, or designed with distributed, locally delivered HVAC. The equipment is generally turned on at 6am and runs through up to 10pm, 6 days a week. Swimming pool equipment is operated throughout the year, 24 hours a per day. Scattered throughout the building are enclosed wall mounted finned tube radiation heaters, baseboard heaters, cabinet heaters, and unit heaters in the corridors, vestibules, stairways and lobbies. Central Plant and Basement section: The central HVAC plant is in the basement along with a tunnel leading to loading docks. The central plant contains the main building chillers, boilers, pumps and central station air-handling units (AHUs). The AHUs serve various parts of other building sections are described in detail in the sections that follow. The plant has 4 electric chillers in all: 1) 1972 installed chiller is electric, water-cooled with condenser heat recovery at 105

deg F, R-11, centrifugal and rated for 800 tons. This 38 year-old chiller is past its service life of 23 years, as published in the 2007 ASHRAE HVAC Applications Handbook. This chiller is not used anymore and is just taking up space in the mechanical room.

2) 1992 installed chiller is electric, water-cooled with condenser heat recovery at 105

deg F, R-11, centrifugal and rated for 890 tons and is in good condition. This 18 year-old chiller has some years of service left, given that service life of chiller equipment as published in the 2007 ASHRAE HVAC Applications Handbook is 23 years.


deg F, R-123, centrifugal and rated for 320 tons. It is rated for 0.62kW/ton at full load and in good condition. This 14 year-old chiller has some years of service left, given that service life of chiller equipment as published in the 2007 ASHRAE HVAC Applications Handbook is 23 years.


deg F, R-123, centrifugal and rated for 500 tons. It is rated for 0.52kW/ton at full load and t is in good condition. This 10 year-old chiller has many years of service left, given that service life of chiller equipment as published in the 2007 ASHRAE HVAC Applications Handbook is 23 years.

The chiller’s heat rejection is used for building reheat or is discharged through a cooling tower via a condenser water loop. Heat recovered from the chillers is at 105 deg F and is not stored, rather directly injected into the hot water loop. The cooling tower is a 3-cell EVAPCO unit located outside the building on steel frame. Each cell utilizes a 30 HP blower connected to a VFD; the motor is rated at an estimated 94% efficiency. The VFD operates from the water temperature signal set at 80 deg F. The cooling tower is in good condition and is about 20% of the way through their estimated service life of 22 years according to the 2007 ASHRAE HVAC Applications Handbook.


The plant has 8 boilers in all (numbered 1A, 1B, and 2 to 7), of which 1A and 1B are for domestic hot water heating and described in a later section. All boilers are generally in good and operating condition, and can be described as follows: Boiler #2 is rated for 1495MBH output at an estimated 80% efficiency. The boiler was installed in 1999 and has 15 years remaining on its expected service life of 24 years, as published in the 2007 ASHRAE HVAC Applications Handbook for steel tube boilers. It is in good condition and uses electronic temperature control devices. It is a sealed combustion unit with fan assisted combustion unit. This only serves the Admin area Modine units. Hot water is pumped from here into a large 20,000-gallon cast iron storage tank. Boiler #3 is rated for 1,495MBH output at an estimated 80% efficiency. The boiler was installed in 1999 and has 15 years remaining on its expected service life of 24 years, as published in the 2007 ASHRAE HVAC Applications Handbook for steel tube boilers. It is in good condition and uses electronic temperature control devices. It is a sealed combustion boiler fitted with a fan assisted combustion unit. This boiler serves the whole building heating except the admin area. Hot water is directly injected into the hot water loop. Boiler #4 is rated for 16,725MBH output at an estimated 80% efficiency. The boiler was installed in 2000 and has 14 years remaining on its expected service life of 24 years, as published in the 2007 ASHRAE HVAC Applications Handbook for steel tube boilers. It is in good condition and uses electronic temperature control devices. It is a sealed combustion boiler fitted with a fan assisted combustion unit. This boiler serves as a back-up for Boiler #3 and is sparingly used. Given the age and use of this boiler, replacement is not relevant. Boiler #5 and #6 are each rated for 603MBH output at an estimated 78% efficiency. Each boiler was installed in 1994 and has 8 years remaining on its expected service life of 24 years, as published in the 2007 ASHRAE HVAC Applications Handbook for steel tube boilers. They are in good condition and use electronic temperature control devices. These boilers are only used to preheat the outside air to the cafeteria AC-1U and AC-2U which originally used to have electric heaters. Boiler #6 is used sparingly as a back up to Boiler #5. Both boilers use glycol to avoid freezing when the outside air drawn into these units is at sub-freezing temperatures in extreme weather condition. Boiler #7 is rated for 1,105MBH output at an estimated 86% efficiency. This Power-Fin boiler is a high efficiency, sealed combustion unit that features a 5:1 turndown ratio to precisely match the firing rate to heating load requirements. The boiler was installed in 2005 and has 20 years remaining on its expected service life of 24 years, as published in the 2007 ASHRAE HVAC Applications Handbook for steel tube boilers. This boiler is only used to preheat the outside air to the main library unit AC-1L, which originally had an electric heater. This is a glycol heater as the coil is directly exposed to outside air. The boiler is largely oversized for its use because the Facility Management is planning to move the Boiler #5 and Boiler #6 loads to this high efficiency boiler. SWA agrees with this option. The hydronic system within the central plant utilizes many pumps and piping distributions systems. Many pumps are old, original to the building, past their service lives and are not used anymore. Other original pumps have been rewound to a lower


speed and have new motors, some of which are NEMA premium efficiency. The equipment inventory list in Appendix A details each pump, installation date, equipment served, and other details. Some pumps are connected to an emergency generator and only used as such. The main set of pumps P-1 to P-17 are used in the winter and summer only; 6 new pumps installed in 1996 which have premium efficiency motors are used during the shoulder seasons. SWA considered installing premium efficiency motors and VFDs on these pumps. The opportunity to benefit from VFD was limited because of the way systems are set up and because of low operating hours. The basement also includes a long tunnel leading to loading docks. The tunnel is ventilated by a large exhaust fan E-1A which is original to the building and must be replaced. Some of the existing systems are not original and consists of replacements or modifications.

The building contains a Trane Tracer Summit Building Automation System (BAS) which is mostly Direct Digital Control but with remaining pneumatic actuators and controls. The BAS controls the heating and cooling plants and terminal equipment, including air handling units and VAV boxes. The heating and cooling equipment is scheduled for various seasons as follows:

• Summer – Chilled water is delivered at 42ºF and there is no hot water generated from the boilers or chillers heat recovery

• Winter – Hot water from boilers is delivered at 160ºF and there is no chilled water generated

• Shoulder months - Chilled water is delivered at 45ºF and hot water at 105ºF from

the chiller heat rejection In general, there were no major building staff complaints in regards to the ability of the systems providing adequate heating and cooling to the building occupants. Some students did complain though about over-heating and cooling in some areas. SWA visited those areas and did not find any abnormal conditions during the visit. The facility has assigned an environmental engineer to further investigate this matter. Measurement or verification of the code compliance for ventilation was not part of this energy study. However, should any retro-commissioning or system upgrades be made as part of some capital improvement project, the scope should include readjustment of the outside air dampers at louvers, roof ventilator and other units to provide a code compliant level of outside air to the spaces. Administration Section: This three-story building section is original to the campus construction, and is connected to the central plant. The building was zoned for internal and building perimeter areas. Internal areas were served by conditioned air mixed with outside air for ventilation from unit AC-1A, which was subsequently removed. Perimeter areas were served from 4 pipes (2 each of CHW and HW) to 2 pipes connection Modine units, which were zoned to receive mixed water at any temperature from 42ºF to 115ºF to meet the local zone demand. The hot and chilled water mixes at these units through modulating pneumatic valves, which reportedly work well but are original. These units have a three-speed fan control that can be operated individually by room occupants, and they were equipped


with outside air intake dampers to allow for ventilation. The Modine units have no local temperature control from thermostats – they are controlled from the central BAS and local sensors, set to maintain zones at 73ºF year round. Presently, two DX gas-fired rooftop package units AC-S-1 and AC-S-2 serve the first floor, and four Aaon DX gas-fired rooftop units serve the second and third floors; unit AC-1A is removed. The first floor was gut renovated, disconnected from the central plant, and the Student section addition was built in 1989. Two DX gas-fired rooftop package units AC-S-1 and AC-S-2 now serve these areas with VAV boxes, providing each room with individual temperature control. The main units were designed to modulate the supply air quantity through inlet vane controlled vari-vane fans, which do not function as efficiently now as they should. These units are equipped with enthalpy controlled economizers to supply ASHRAE recommended minimum fresh air, which is mixed with the return air in an integral mixing box. Perimeter Modine units were replaced with electric baseboards for heating. These baseboards have built-in thermostats that turn on heat when cold drafts occur. The second and third floors are served from unit AC-1 and from the perimeter Modine units. In 2002, four Aaon DX gas-fired rooftop units were added to provide HVAC to the interior areas, and AC-1A was removed. The Aaon units have sensible heat recovery wheels, and are operated to allow 100% outside air with no recirculation. The units are also capable of recirculation of return air back to the spaces; this is normally done in the morning warm-up cycle when fresh air is not required as there is no occupancy. The Aaon units are controlled by central BAS to maintain 73 deg F temperatures in the main return air ducts. Modine units still exist on the perimeter to provide only heating and cooling, but no ventilation--the outside air dampers have been closed shut because outside vehicle fumes from the road were being sucked inside the building. The Aaon units were added to solve this problem. Library Section: This three-story building section was built in 1972 and ducted from the central station air handling unit, AC-1L located in the central plant. This unit is connected to the central heating and cooling plant. The supply air from this unit is served from hot and cold decks in hot and cold air ducts. Hot and cold air is mixed at the terminal paddle or sweep type VAV box providing each room with individual temperature control. These are constant air boxes for the most part, except that in summer the hot deck is closed (when the ambient air temperature is above 55ºF) and these function like true VAV boxes. Two central return air fans carry the air back to AC-1L through the ceiling plenum. Fresh air is mixed with the return air in an integral mixing box. The outside air dampers are not modulating and can supply only fixed amounts of fresh air or none at all. A large three-story building was added adjunct to the original building in 1989, and it is not connected to the central plant. Two DX gas-fired rooftop package units AC-L-1 and AC-L-4 serve this addition with terminal VAV boxes, providing each room with individual temperature control. The main units were designed to modulate the supply air quantity through inlet vane-controlled vari-vane fans, which do not function as efficiently as they were designed to function. The units themselves change from heating to cooling mode or vice versa depending on the main return air temperature signal, which is set at 72 deg F. These units are equipped with enthalpy-controlled economizers to supply ASHRAE recommended minimum fresh air, which is mixed with the return air in an integral mixing


box. Perimeter rooms are equipped with electric baseboards for heating, which have built-in thermostats. Supply air quantity for the original unit AC-1L was reduced after the new addition in 1989 reduced the building load. Subsequently, a VFD was added to this unit and set to run the fans at 80% speed to deliver reduced air quantity. The VFD does not have a modulating control pressure signal in the absence of VAVs to modulate the fan speed. College and Cafeteria Section: The first and second floors of this building section are served by central station air handling units, AC-1U and AC-2U, in the central plant. The third floor is served by three DX gas-fired rooftop package units RT-1, RT-2, and RT-3. The first and second floors of this building section were built in 1972 and ducted from central station air handling units, AC-1U and AC-2U, in the central plant. AC-1U is designed to serve perimeter areas, AC-2U for internal areas. Both units are supplied by the central heating and cooling plant. Individual return air fans carry the air back to respective units through the ceiling plenum. Fresh air is mixed with the return air from the two central return air fans that carry the air back to the units through the ceiling plenum. The perimeter zone on the second floor, which is the cafeteria, is served from 4 pipes (2 each of CHW and HW) to Modine units, zoned to receive mixed water at any temperature from 42ºF to 115ºF to meet the local zone demand. The hot and chilled water mixes at these units through modulating pneumatic valves, which reportedly work well but are original. These units are equipped with outside air intake dampers to allow for ventilation. The Modine units are controlled from the central BAS and room sensors. This system is set to maintain zones at 73ºF year round. The third floor was added to the college center section in 1996, and it is not connected to the central plant. Three DX gas-fired rooftop package units RT-1, RT-2, and RT-3 serve this floor with terminal VAV boxes, providing each room with individual temperature control in a master-slave arrangement. RT-1 serves internal areas, and RT-2 and 3 external areas, providing a good and efficient system. Further, the units themselves change from heating to cooling mode or vice versa depending on the main return air temperature signal, which is set at 72 deg F. The VAVs are fan-powered with hot water reheat coils. The primary air is introduced at 55 deg F, and reheated where required. These units are equipped with enthalpy-controlled economizers, and supply the ASHRAE recommended minimum fresh air mixed with the return air. Only this portion of the whole Pitkin building is controlled by a Honeywell BAS installed in 1996 that works as a standalone system. Other areas are integrated within the Trane BAS. Theater section: The theater HVAC system consists of two DX rooftop package units AC-T-1 and AC-T-2 that serve the auditorium and stage. These units supply cooling and ventilation only. The space temperature is set at 72 deg F. There is an additional unit, AC-T-3, which is a DX gas-fired rooftop package unit that provides heat to offices and administration areas. It is also set to switch automatically from heating to cooling mode based on the outside air temperature and building occupancy. The space temperature is set at 72 deg F. These units are equipped with enthalpy-controlled economizers to supply ASHRAE recommended minimum fresh air, which is mixed with the return air in an integral mixing


box. Perimeter rooms are equipped with electric baseboards, which have built in thermostats. Science Section: This three-story building section was built in 1972 and ducted from central station air handling units, AC-1SC and AC-2SC located in the central plant; the former serves the north portion and the latter the south portion of Science building. The units are supplied by the central heating and cooling plant. The supply air from these units is served from hot and cold decks in hot and cold air ducts. Hot and cold air is mixed at the terminal paddle or sweep type VAV box, providing each room with individual temperature control. These are constant air boxes for the most part, except that in summer the hot deck is closed (when the ambient air temperature is above 55 deg F) and these function like true VAV boxes. Two central return air fans carry the air back to the units through the ceiling plenum in many return air shafts. The main supply and return ducts are buried in the building trenches. Fresh air is mixed with the return air in an integral mixing box. The outside air dampers are not modulating, and can supply only fixed amounts of fresh air or none at all. A large two-story building addition was completed in 1989, on the second and third floors. This addition was built upon the existing first floor from 1972 and is not connected to the central plant. Two DX gas-fired rooftop package units AC-L-2 and AC-L-3 serve this addition with terminal VAV boxes, providing each room with individual temperature control for heating and cooling. The main units were designed to modulate the supply air quantity through inlet vane-controlled vari-vane fans, which do not function as efficiently as they were designed to function. The units themselves change from heating to cooling mode, or vice versa, depending on the main return air temperature signal, which is set at 72ºF. These units are equipped with enthalpy-controlled economizers to provide fresh air, which is mixed with the return air in an integral mixing box. Perimeter rooms are equipped with electric baseboards with built in thermostats. Supply air quantity for the original units AC-1SC and AC-2SC was reduced after the new addition in 1989 reduced the building load. Consequently, VFDs were added to these units and set to run the fans at 80% speed to deliver reduced air quantity. The VFDs do not have a modulating control pressure signal in the absence of VAVs to modulate the fan speed. Business Section: This three-story building section was built in 1972 and ducted from the central station air handling unit, AC-1BC, in the central plant. This unit has hot water coils supplied from central boilers, and chilled water coils supplied from central chillers. The supply air from this unit is served from hot and cold decks in hot and cold air ducts. Hot and cold air is mixed at the terminal paddle or sweep type VAV box providing each room with individual temperature control. These are constant air boxes for the most part, except that in summer the hot deck is closed (when the ambient air temperature is above 55 deg F), and these function like true VAV boxes. One central return air fan carries the air back to AC-1BC through the ceiling plenum. Fresh air is mixed with the return air in an integral mixing box. The outside air dampers are not modulating, and can supply only fixed amounts of fresh air or none at all.


Some perimeter areas were served from 4 pipes (2 each of CHW and HW) to 2 pipes connection Modine units, which were zoned to receive mixed water at any temperature from 42ºF to 115ºF to meet the local zone demand. The hot and chilled water mixes at these units through modulating pneumatic valves, which reportedly work well but are original to the building. These units have a three-speed fan control that can be operated individually by room occupants, and they were equipped with outside air intake dampers to allow for ventilation. The Modine units have no local temperature control from thermostats – they are controlled from the central BAS and local sensors set to maintain zones at 73ºF year round. The second and third floors of the business section were renovated in 2005, and all connections from the central plant were removed. The duct chase was run upside down, and the fan’s speed in the main mechanical room was reduced to deliver only 75% of the original air quantity. Three DX gas-fired rooftop package units RTU-1, RTU-2, and RTU-3 serve these floors with terminal VAV boxes, providing each room with individual temperature control in a master slave arrangement. The units themselves change from heating to cooling mode, or vice versa, depending on the main return air temperature signal, which is set at 72 deg F. The VAVs have hot water reheat coils. The primary air is introduced at 55 deg F, and reheated where required. These units are equipped with enthalpy-controlled economizers and supply the ASHRAE recommended minimum fresh air mixed with the return air. Modine units were removed. Gymnasium: The gymnasium contains six air handling units manufactured by Trane and equipped with hot and chilled water coils to serve various spaces. All units are original, and were installed in 1972. They are past their service lives and must be replaced. The units serving the gymnasium itself have recently been equipped with Variable Frequency Drives that speed down the fans during unoccupied hours. There are some old, roof-mounted gymnasium exhaust fans which are in need of replacement, as they are past the service lives. Natatorium: The swimming pool contains many types of HVAC equipment. There are two DX air handling units, which are about 10 years old. One is a McQuay, which serves the locker rooms and seating areas; the other is a Zephyr which serves the pool area itself. Both units have compressors, and heat recovery options; the heat recovered is used to reheat the supply air. Both units also have hot water coils for supply air reheat. In addition, the Zephyr Poolpak unit is connected to an outside condensing unit for excess heat removal. Swimming pool air is maintained at 85ºF and 50% RH by a combination of thermostat and humidistat. Actual humidity in the pool was reported to be around 60%, despite the humidistat setting of 50%. A Trane chiller is sitting in the mechanical room - installation is yet to be completed, and it is not in use – once installed, it will help to bring the humidity down to the desired level. The Zephyr unit is not working as efficiently as designed and must be replaced, as it has reached the end of its useful life. The McQuay unit is good for another five years, at least.


Each AHU is connected to a return air fan, manufactured by Trane and originally installed in 1972, but rebuilt only two weeks ago. The units draw a total of 8000cfm outside air for pool ventilation, which is generally exhausted by roof-mounted, mushroom type exhaust fans, which are original. The pool water heater is rated for 399MBH input at estimated 78% efficiency. The boiler was installed in 2000. Given its age, the heater has 14 years remaining on its expected service life of 24 years, as published in the 2007 ASHRAE HVAC Applications Handbook for steel tube boilers. The pool HVAC heater is rated for 800 MBH output at an estimated 80% efficiency. The boiler was installed in 1999. Given its age, the heater has 15 years remaining on its expected service life of 24 years, as published in the 2007 ASHRAE HVAC Applications Handbook for steel tube boilers. Both heaters are gas-fired and in good condition. The pool water is maintained at 82ºF. A set of two Taco pumps circulate approximately 600 GPM through the pool, regardless of whether the pool is in use or not, 24/7. The pump motors were replaced about five years ago and are in good condition. The pool HVAC systems are operated for 8760 hours because of thermal inertia – reportedly, it takes a day to bring the temperature up or down by 2ºF – consequently, the HVAC system is always left on. A manually-operated pool cover exists, but it is not used due to the lack of operating staff at 10pm and at 5am.

Domestic Hot Water

As discussed in the heating section, Boiler #1A and 1B function as domestic water heaters supplying the majority of the building. They are located in the main mechanical room in the basement. Each is rated for 300MBH gas input at an estimated 82% efficiency. The boiler was installed in 2007. Its expected service life is 24 years, as published in the 2007 ASHRAE HVAC Applications Handbook for steel tube boilers. Domestic Hot Water is stored into a large 20,000 gallon cast iron storage tank before being supplied the building. The concrete lining of this tank is coming apart, and so the facility has procured 2 new 1000 gallons tanks that will replace the old tank. The new tanks are being installed at the present time. Besides the gas-fired domestic hot water heaters in the central plant, there are two electric water heaters. An AO Smith, 6kW, 50 gallon tank electric heater serves the dental lab only. A Hubbell, 54kW, 400 gallon tank electric heater serves the Theater section restrooms only. Electrical Systems

Lighting

See the attached lighting schedule in Appendix B for a complete lighting inventory throughout the building, and estimated power consumption.

Interior Lighting – The Pitkin Education Center contains mostly modern and efficient lighting, with a limited amount of inefficient lighting still present. A majority of the


building consists of T5 and T8 fluorescent fixtures of various lengths with electronic ballast and Compact Fluorescent Lamps (CFLs). Additionally, there are also metal halide fixtures installed in the building. Exit Lights - Exit signs were found to be a mix LED type and fluorescents. Exterior Lighting - The exterior lighting surveyed during the building audit was found to be a combination of metal halide, halogen, high pressure sodium and CFL fixtures. Garage and Exterior Parking - The parking lights surveyed during the building audit were found to be 400W high pressure sodium fixtures. Appliances and process equipment Commercial Kitchen Equipment There are two walk-in refrigerators located in the kitchen, room C207 that are in good condition. The walk-in freezer located in the basement is in good condition too. The kitchen also contains three tall, two-door, commercial reach-in refrigerators, and two tall, four-door, commercial reach-in freezers; all are manufactured by Traulsen and are in good condition. There is one ice maker, manufactured by Manitowoc Ice, Inc., model B570, ice maker, which makes ice without storage and is in good condition. The kitchen room C209 contains one tall, two-door, commercial refrigerator, one tall, three-door, commercial refrigerator, and one tall, four-door, commercial freezer. All units are manufactured by Traulsen. The kitchen also contains several pieces of commercial-style cooking equipment, including a gas-fired, six-burner oven range with griddle, fryers, wok, and convection ovens. All equipment is gas-fired. There is a large kitchen hood provided for this equipment. Elevators There are six hydraulic elevators in the building that were installed and refurbished at different times in the past. Some of them are in good condition; however, some were observed in deteriorating condition. Other electrical systems There are five main electric transformers located within the building which step down 13200V to 480 V of different ratings. Four of these transformers were observed to be original to the building and no longer performing efficiently. Emergency Generator There is one 45KW diesel emergency generator in the gymnasium mechanical room, and it is manufactured by Onan. There are three diesel emergency generators located in the main electric room in the basement listed in the equipment inventory;


these are 85kW, 400W, and 115kW respectively. All generators were estimated to be installed in 1989 and are due for replacement soon. The generators serve emergency lighting and receptacles, cooling tower pan heaters, one boiler, one hot water circulating pump, the walk-in coolers and freezers, and the ejector pump.


West Hall Building Characteristics The three-story, 60,000 square foot West Hall, Communication Arts Building was constructed in 2007. It houses computer labs, classrooms, office space, radio broadcast and teaching studio suites, and a 75-seat performance hall.

Building Occupancy Profiles Its occupancy is approximately 400 students and faculty weekly, Monday through Friday. The building is open from 6am until 11pm, according to security personnel. Building Envelope Due to favorable weather conditions (min. 18 deg. F delta-T in/outside and no/low wind); some exterior envelope infrared (IR) images were taken during the field audit. Thermal imaging technology helps to identify energy-compromising problem areas in a non-invasive way. General Note: All findings and recommendations on the exterior envelope (base, walls, roofs, doors and windows) are based on the energy auditors’ experience and expertise, on construction document reviews (when available) and on detailed visual analysis, as far as accessibility and weather conditions allowed at the time of the field audit.


Exterior Walls The exterior wall envelope is mostly constructed of brick veneer and some limestone type accents, over a steel frame with 3-1/2 inches of fiberglass batt cavity insulation. The interior is mostly painted gypsum wallboard. Exterior and interior wall surfaces were inspected during the field audit. They were found to be in overall good condition with no signs of uncontrolled moisture, air-leakage or other energy-compromising issues. Roof The building’s predominantly flat and parapet type roof is built on steel decking, with a dark-colored EPDM single membrane finish. It is original to the building and has never been replaced. There were zero inches of detectable attic/ceiling insulation, and four inches of foam board roof insulation were recorded. Roofs, related flashing, gutters and downspouts were inspected during the field audit. They were reported to be in overall good condition, with only a few signs of uncontrolled moisture, air-leakage or other energy-compromising issues. The following specific roof problem spots were identified:

Base The building’s base is composed of a below-grade slab floor with a perimeter footing with poured concrete foundation walls and no detectable slab edge/perimeter insulation. The building’s base and its perimeter were inspected for signs of uncontrolled moisture or water presence and other energy-compromising issues. Overall, the base was reported to be in good condition with no signs of uncontrolled moisture, air-leakage and/or other energy-compromising issues.


Windows The building contains basically one type of window.

1. Fixed-type windows with an insulated aluminum frame, low-E coated/gas-filled, double-glazing and some interior or exterior shading devices. The windows are located throughout the building and are original.

Windows, shading devices, sills, related flashing and caulking were inspected as far as accessibility allowed for signs of moisture, air-leakage and other energy compromising issues. Overall, the windows were found to be in good condition with no signs of uncontrolled moisture, air-leakage and/or other energy-compromising issues. Exterior Doors The building contains two different types of exterior doors.

1. Metal type exterior doors. They are located throughout the building and are original.

All exterior doors, thresholds, related flashing, caulking and weather-stripping were inspected for signs of moisture, air-leakage, and other energy-compromising issues. Overall, the doors were found to be in good condition with only a few signs of uncontrolled moisture, air-leakage and/or other energy-compromising issues. The following specific door problem spots were identified:

Building air-tightness Overall the field auditors found the building to be reasonably air-tight, considering the building's use and occupancy, as described in more detail earlier in this chapter. The air tightness of buildings helps maximize all other implemented energy measures and investments, and minimizes potentially costly long-term maintenance, repair and replacement expenses.


Mechanical Systems The West Hall building was built in 2007 and therefore contains newer heating, cooling and ventilation equipment. The building contains one central hot water heating plant that supplies hot water to AHU-1, UH-1, UH-2, CUH-1, CUH-2, hot water baseboards and VAV boxes located throughout the building. Heating hot water is used for general space heating as well as gas reheat during the summer. The building’s central hot water heating plant consists of two RBI boilers that are situated parallel to each other but piped in series to distribute hot water to circulation pumps before circulating throughout the building. The boilers are piped in series, causing both boilers to operate together and not in lead lag setup. Combined, the boilers have a total heating capacity of 1,879 MBH. Each boiler has a thermal efficiency of 82%; however they may not be operating efficiently since they are connected in series. The heating hot water system provides hot water baseboard heating to the perimeter areas, Stair-2, Stair-1, Vestibule 102A and Vestibule 202A. Hot water heating is also provided by UH-1 to Room W131 and Storage Room 132. Hot water heating is also provided by CUH-1 to Lounge 109 and by CUH-2 to Stair-2 117. The hot water loop provides heating to AHU-1 and that provides heating to the entire first floor. AHU-1 provides heating as well as cooling. This unit is controlled by VFD controls on the supply fans. In addition to the central hot water heating plant, additional heat is provided by two gas-fired rooftop units as well as one roof-mounted air handling unit. RTU-1 and RTU-2 have a combined heating capacity of 613 MBH and AHU-2 has a heating capacity of 410 MBH. All three units have a thermal efficiency of 81%. These rooftop units provide heating and cooling to the general spaces through ductwork and VAV boxes. The building contains three electric, convective heating units ECH-1, ECH-2 and EWH-1. These units provide heating to Vestibule 102A, Vestibule 202A and Stair-1 104. Although these units are electric, they are rarely used and their replacement will not be cost effective. Their primary use is to prevent freezing in perimeter areas such as stairwells and vestibules. There are six condensing units that provide refrigerant cooling to evaporative units within the building. ACCU-1 and ACCU-2 are air cooled condensers that provide cooling to their respective air handling units. ACR-1 through ACR-6 are connected with evaporative units located in small spaces that have excessive heat loads such as the UPS room, elevator machine room and electrical rooms throughout the building. The entire cooling system is set to provide forced air cooling through ductwork and VAV boxes. Each VAV box is connected to the hot water loop and is equipped with a reheat coil. According to building staff, rooftop units are used primarily to pre-heat or pre-cool the building during the morning before occupancy increases. Once temperature set points are reached, the rooftop units are used minimally and the central hot water heating plant maintains the set points throughout the day.


The entire heating, ventilation and cooling system is connected to a Building Automation System (BAS) module in the mechanical room. This module sends a signal to the Pitkin building where facility staff monitors HVAC conditions. The building contains programmable thermostats however these have all been disabled and the entire HVAC system is controlled by the central BAS.

Domestic Hot Water The building contains one AO Smith Preferred domestic hot water heater. This unit has a heating capacity of 150 MBH, 100 gallons storage, 170.90 gallon/hour recovery as well as 95% nameplate thermal efficiency. The unit is equipped with hot water recirculation and was observed to efficiently supply domestic hot water at 122ºF.

Electrical Systems

Lighting Appendix A contains a complete inventory of lighting through the building, estimated power consumption and proposed lighting schedules. Interior Lighting – The West Hall building currently consists of mostly T8 fluorescent fixtures with electronic ballasts and compact fluorescent lamps (CFLs) in recessed can fixtures. There were some areas with incandescent or halogen bulbs which are inefficient. Based on measurements of lighting levels for each space, there are no vastly over-illuminated areas. There are many occupancy sensors already installed in classrooms, bathrooms, closets, and offices. Typically, occupancy sensors have an adjustable time delay that shuts down the lights automatically if no motion or sound is detected within a set time period.

Exit Lights – All exit signs were found to be efficient LED-type. Exterior Lighting – The exterior lighting fixtures surveyed during the building audit were found to contain metal halide lamps. Exterior lighting is controlled by centrally located timers. During the site visit, exterior lights were observed on during daytime hours however maintenance staff noted that the exterior lights were being tested the day of the audit.


Appliances and process equipment SWA has conducted a general survey of larger, installed equipment. Appliances and other miscellaneous equipment account for a significant portion of electrical usage within the building. Typically, appliances are referred to as “plug-load” equipment, since they are not inherent to the building’s systems, but rather plug into an electrical outlet. Equipment such as process motors, computers, computer servers, radio and dispatch equipment, refrigerators, vending machines, printers, etc. all create an electrical load on the building that is hard to separate from the rest of the building’s energy usage based on utility analysis. Building management should always consider purchasing Energy Star labeled equipment to ensure energy efficiency at the wall outlet. The building contained several snack and drink-vending machines. Some units were observed to have the Energy Star label and all units are assumed to be efficient based on the age of the building and equipment.

Computers left on in the building consume a lot of energy. A typical desktop computer uses 65 to 250 watts when in use and the same amount of energy when the screen saver is left on. Televisions in meeting areas use approximately 3-5 watts of electricity when turned off.


Elevators The West Hall building contains two Imperial hydraulic elevators. Each elevator is powered by a 30 HP AC motor. These units were observed in good condition which is appropriate for their age. Other electrical systems There are three GE, dry-type transformers located in the building. The units consist of 30.0 kVA, 150.0 kVA and 300.0 kVA transformers and are in accordance with the most recent transformer efficiency guidelines.


Ender Hall Building Characteristics The single-story (slab-on-grade), 64,000 square foot Ender Hall building, formerly called East Hall was the first academic building on campus. It was originally constructed in the 1970s with several additions and alterations throughout the years. It houses different classrooms, administrative offices, a 100-seat theater and a detached greenhouse.

Building Occupancy Profiles Its occupancy is approximately 250 students and faculty Monday through Friday. The building is open from 6:00am until 11:00pm according to security personnel. Building Envelope Due to favorable weather conditions (min. 18 deg. F delta-T in/outside and no/low wind); some exterior envelope infrared (IR) images were taken during the field audit. Thermal imaging technology helps to identify energy-compromising problem areas in a non-invasive way. General Note: All findings and recommendations on the exterior envelope (base, walls, roofs, doors and windows) are based on the energy auditors’ experience and expertise, on construction document reviews (if available) and on detailed visual analysis, as far as accessibility and weather conditions allowed at the time of the field audit.

Exterior Walls The exterior wall envelope is mostly constructed of a vertical metal panel system and some EIFS (Exterior Insulation Finishing System) accents, over a steel frame with 2-


1/2 inches of EPS (expanded polystyrene, white) insulation. The interior is mostly painted gypsum wallboard. Exterior and interior wall surfaces were inspected during the field audit. They were found to be in overall acceptable, age-appropriate condition with some signs of uncontrolled moisture, air-leakage and other energy-compromising issues detected on all facades. The following specific exterior wall problem spots and areas were identified:


Roof The building’s roof is predominantly a flat, no parapet, type over steel decking, with a metal panel finish. It is original. There was no detectable attic/ceiling insulation and


two inches of under-roof deck applied open-cell spray foam roof insulation were recorded. Other parts of the building are also covered by a flat and parapet-type over steel decking with a dark colored EPDM single membrane finish. There was no detectable attic/ceiling insulation and two inches of under-roof deck applied open-cell spray foam roof insulation was assumed. Note: Roof insulation levels could not be verified in the field or on construction plans, and are based upon similar wall types and time of construction. Roofs, related flashing, gutters and downspouts were inspected during the field audit. They were reported to be in overall acceptable condition, with some signs of uncontrolled moisture, air-leakage and other energy-compromising issues. The following specific roof problem spots were identified:



Base The building’s base is composed of a slab-on-grade floor with a perimeter foundation and no detectable slab edge/perimeter insulation. The building’s base and its perimeter were inspected for signs of uncontrolled moisture or water presence and other energy-compromising issues. Overall the base was reported to be in acceptable/age appropriate condition with no signs of uncontrolled moisture, air-leakage and/ or other energy-compromising issues. Windows The building contains two different types of windows:

1. Fixed type windows with a non-insulated aluminum frame, tinted double glazing and various interior shading devices.

2. Fixed with awning type windows with a non-insulated aluminum frame, tinted

single glazing and various interior shading devices. Windows, shading devices, sills, related flashing and caulking were inspected as far as accessibility allowed for signs of moisture, air-leakage and other energy compromising issues. Overall, the windows were found to be in acceptable/age appropriate condition with only a few signs of uncontrolled moisture, air-leakage and/ or other energy-compromising issues. The following specific window problem spots were identified:

Exterior Doors The building contains two basic types of exterior doors:

1. Glass with aluminum/steel frame type exterior doors: They are located throughout the building and are original.

2. Metal type exterior doors: They are located throughout the building and are

original. All exterior doors, thresholds, related flashing, caulking and weather-stripping were inspected for signs of moisture, air-leakage and other energy-compromising issues. Overall, the doors were found to be in acceptable/ age appropriate condition with


some signs of uncontrolled moisture, air-leakage and/ or other energy-compromising issues. The following specific door problem spots were identified:

Building air-tightness Overall the field auditors found the building to be reasonably air-tight, considering the building's use and occupancy, as described in more detail earlier in this section. In addition to all the above mentioned findings, SWA recommends air-sealing, caulking and/or insulating around all structural members, recessed lighting fixtures, electrical boxes and chimney walls that are part of or penetrate the exterior envelope and where air-leakage can occur. The air tightness of buildings helps maximize all other implemented energy measures and investments, and minimizes potentially costly long-term maintenance, repair and replacement expenses.

Mechanical Systems There are approximately twenty-seven DX gas-fired roof top package units with supply and return air ducted to the areas. All units are equipped with enthalpy controlled economizers and supply the ASHRAE recommended minimum fresh air mixed with the return air. Space temperatures are usually set at 72 deg F by local occupants from wall-mounted thermostats. All the units are manufactured by Trane except one by Mammoth which was installed in 2009. Sixteen roof-top units were installed as far back as in 1986. They are 24 years old and past their service life of 15 years as published by the 2007 ASHRAE HVAC Applications Handbook. These units must be replaced as part of a capital improvement program. Other units were relatively new, all less than 10 years old and still have significant life remaining. These units are in good condition. Electric baseboard heaters are located under perimeter windows to prevent cold drafts. There are toilet exhaust fans, kitchen hood exhaust fans and general exhaust fans on roof. Most fans are old and were installed over 15 years ago, which is the expected service life. These fans must be replaced as part of a capital improvement program. The building is connected to Pitkin Trane direct digital Building Automation System which controls the heating and cooling equipment. The building has occupied, unoccupied, and night set back settings already incorporated into the BAS. In general,


there were no major complaints about the ability of the heating and cooling systems to provide adequate heating and/or cooling to the building occupants. Measurement or verification of the code compliance for ventilation was not part of this energy study. However, should any retro-commissioning or system upgrades be made part of some capital improvement project, the scope should include readjustment of outside air dampers at louvers, roof ventilator and other units to provide code compliant level of outside air to the spaces. Domestic Hot Water There are two gas-fired domestic hot water heaters in the building which are in good condition. Rheem Rudd DHW is 125 MBH input, with 84% efficiency, and 75 gallon hot water storage capacity. It was installed in 2007. AO Smith DHW is 154MBH input, with 80% efficiency, and 75 gallon hot water storage capacity. It was installed in 2002.

Electrical Systems

Lighting Appendix A contains a complete inventory of lighting throughout the building, estimated power consumption as well as proposed lighting schedules. Interior Lighting – The Ender Hall building currently consists of mostly T8 fluorescent fixtures with electronic ballasts. Based on measurements of lighting levels for each space, there are no vastly over-illuminated areas. There are many occupancy sensors already installed in classrooms and offices. Typically, occupancy sensors have an adjustable time delay that shuts down the lights automatically if no motion or sound is detected within a set time period. Exit Signs – Exit signs were found to be efficient LED-type. Exterior Lighting – The exterior lighting fixtures surveyed during the building audit were found to contain metal halide lamps, low pressure sodium, high pressure sodium and incandescent bulbs. Appliances and process equipment SWA has conducted a general survey of larger, installed equipment. Appliances and other miscellaneous equipment account for a significant portion of electrical usage within the building. Typically, appliances are referred to as “plug-load” equipment, since they are not inherent to the building’s systems, but rather plug into an electrical outlet. Equipment such as process motors, computers, computer servers, radio and dispatch equipment, refrigerators, vending machines, printers, etc. all create an electrical load on the building that is hard to separate out from the rest of the building’s energy usage based on utility analysis. Building management should always consider purchasing Energy Star labeled equipment to ensure energy efficiency at the wall outlet. The building contained several snack and drink-vending machines. Some units were observed to have the Energy Star label.


Computers left on in the building consume a lot of energy. A typical desktop computer uses 65 to 250 watts when on and uses the same amount of energy when the screen saver is left on. Televisions in meeting areas use approximately 3-5 watts of electricity when turned off. The Ender Hall building computers should be programmed for the power save mode, to shut down after a period of time that they are not used.

Commercial Kitchen Equipment There is one Thermo-Kool, TQFM-50, walk-in refrigerator located in the Kitchen that is in good condition. There is also one walk-in-freezer inside the Kitchen manufactured by Thermo-Kool, Model TQFL-1. Both of these were installed in 2000. The kitchen also contains two tall four-door commercial reach-in refrigerators and one tall four-door commercial reach-in freezer; all are manufactured by Traulsen and are in good condition.


The kitchen also contains several pieces of commercial-style cooking equipment, including four gas-fired 6-burner oven ranges with griddle, steamer and steam kettle, a fryer and two gas convection ovens. All equipment are gas-fired and in good condition. There are three large kitchen hoods with exhaust and make-up air fans (EF-1 to 3, and SF-1 to 3). The fans are interlocked and operated by the flick of a manual electric switch. The hoods are made by Vent Master, are state of the art and in good working conditions. There is one icemaker, manufactured by Manitowoc Ice, Inc., model QY0324A, 115/1/60, R404A, and MCA11.2, which makes ice without storage. It is in good condition. Elevators There are no elevators in the building. Other electrical systems There are four electric transformers located outside on grade. One of them (T-4) is new, while others (T-1,2,3) are old and assumed to be original to the building. These should be replaced. SWA estimated the old transformers were rated 500kVA, as there was no nameplate available.


Technology Education Building Building Characteristics The two-story, 50,000 square foot Technology Education Center Building was built in 2002. It houses laboratories, a meeting and training center, class rooms, a full service kitchen and two observation domes.

Building Occupancy Profiles Its occupancy is over 200 students, faculty and administrative personal. It is open Monday through Friday from 6am until 11pm, according to security personnel.

Building Envelope Due to favorable weather conditions (min. 18ºF delta-T in/outside and no/low wind), some exterior envelope infrared (IR) images were taken during the field audit. Thermal imaging technology helps to identify energy-compromising problem areas in a non-invasive way. General Note: All findings and recommendations on the exterior envelope (base, walls, roofs, doors and windows) are based on the energy auditors’ experience and expertise, on construction document reviews (if available) and on detailed visual analysis, as far as accessibility and weather conditions allowed at the time of the field audit.

Exterior Walls The exterior wall envelope is mostly constructed of brick veneer and some limestone type accents, over a steel frame with an unconfirmed level of insulation. The interior is mostly painted gypsum wallboard. Exterior and interior wall surfaces were inspected during the field audit. They were found to be in overall good condition with only a few signs of uncontrolled moisture, air-leakage or other energy-compromising issues.


The following IR images demonstrate some of the exterior wall issues mentioned above:

Roof The building’s roof is predominantly a flat and parapet type over steel decking, with a mostly dark-colored EPDM single membrane finish. It is original to the building. Zero inches of detectable attic/ceiling insulation, and four inches of foam board roof insulation were recorded. Roofs, related flashing, gutters and downspouts were inspected during the field audit. They were reported to be in overall good condition, with only a few signs of uncontrolled moisture, air-leakage or other energy-compromising issues. The following specific roof problem spots were identified:

Base The building’s base is composed of a below-grade basement with a slab floor with a perimeter footing with poured concrete foundation walls and no detectable slab edge/perimeter insulation. The building’s base and its perimeter were inspected for signs of uncontrolled moisture or water presence and other energy-compromising issues. Overall the base


was reported to be in good condition with no signs of uncontrolled moisture, air-leakage and/ or other energy-compromising issues. Windows The building contains basically one type of window.

1. Fixed type windows with an insulated aluminum frame, low-E coated/gas-filled, double glazing and some interior or exterior shading devices. The windows are original and have never been replaced.

Windows, shading devices, sills, related flashing and caulking were inspected as far as accessibility allowed for signs of moisture, air-leakage and other energy compromising issues. Overall, the windows were found to be in good condition with no signs of uncontrolled moisture, air-leakage and/ or other energy-compromising issues. Exterior Doors The building contains two different types of exterior doors. 1. Glass with aluminum/steel frame type exterior doors. They are located on the main floor and are original/have never been replaced. 2. Metal type exterior doors. They are located throughout the building and are original/have never been replaced. All exterior doors, thresholds, related flashing, caulking and weather-stripping were inspected for signs of moisture, air-leakage and other energy-compromising issues. Overall, the doors were found to be in acceptable condition, with only a few signs of uncontrolled moisture, air-leakage and/ or other energy-compromising issues. The following specific door problem spots were identified:

Building air-tightness Overall, the field auditors found the building to be reasonably air-tight with only a few areas of suggested improvements, as described in more detail earlier in this chapter.


The air tightness of buildings helps maximize all other implemented energy measures and investments, and minimizes potentially costly long-term maintenance, repair and replacement expenses.

Mechanical Systems The Technology Education building was built in 2002, and therefore contains newer heating, cooling and ventilation equipment. The building contains one central hot water heating plan that supplies hot water to VAV boxes located throughout the entire building as well as to UH-1, UH-2, CUH-1, CUH-2 and CUH-3. Heating hot water is used for general space heating, as well as gas reheat during the summer. The central hot water heating plant contains two Weil McLain gas-fired sectional boilers that are configured in a lead-lag setup. Each boiler has a dedicated circulation pump. P-2 is used as the lead pump, while P-1 is only used when the heating load is more than the capacity for P-1. The heating plant has a total heating input of 1,560 MBH with a thermal efficiency of 81%. The heating hot water system provides hot water heating to UH-1 and UH-2 located in the mechanical room, CUH-1 and CUH-2 located in the two stairwells and CUH-3 located in the vestibule near the South entrance of the building. In addition to the central hot water heating plant, additional heat is provided by eight gas-fired rooftop units. RTU-1A and RTU-1B has a heating capacity of 284 MBH; RTU-2A has a heating capacity of 203 MBH; RTU-1C,1D,1E,2B,2C each have a heating capacity of 486 MBH. The units were observed in good condition, which is appropriate for their age. These rooftop units provide heating and cooling to the general spaces through ductwork and VAV boxes. There are two Liebert split system AC units that provide cooling to Rooms MDF 117B and Cont. 117B. Each AC unit has a cooling capacity of 14.1 MBH and is each equipped with 3.6 kW electric reheat. The rooftop units also provide R-22 refrigerant cooling to the entire building space through ductworks and VAV boxes. According to building staff, rooftop units are used primarily to pre-heat or pre-cool the building during the morning before occupancy increases. Once temperature set points are reached, the rooftop units are used minimally and the central hot water heating plant maintains the set points throughout the day. The entire heating, ventilation and cooling system is connected to a Building Automation System (BAS) module in the mechanical room. This module sends a signal to the Pitkin building where facility staff monitors HVAC conditions. The building contains


programmable thermostats, however these have all been disabled and the entire HVAC system is controlled by the central BAS system.

Domestic Hot Water The building contains three separate domestic hot water heaters. DHW-1,2 are identical AO Smith atmospheric gas-fired hot water heaters, each with 199 MBH heating capacity and 100 gallons of storage. These units provide domestic hot water for all areas of the building except the pantry. DHW-3 provides domestic hot water to the pantry. This unit is a small-sized, 247.2 MBH unit with a thermal efficiency of 82.4%. This unit has minimal storage; however it is connected directly to a 119 gallon storage tank adjacent to the unit. This unit was in age-appropriate condition.

Electrical Systems

Lighting Appendix A contains a complete inventory of lighting through the building, estimated power consumption as well as proposed lighting schedules. Interior Lighting – The Technology building currently consists of mostly T8 fluorescent fixtures with electronic ballasts and compact fluorescent lamps (CFLs) in recessed can fixtures. There were some areas with incandescent bulbs that are inefficient. Based on measurements of lighting levels for each space, there are no vastly over-illuminated areas. There are many occupancy sensors located in classrooms, bathrooms, closets and offices. Typically, occupancy sensors have an adjustable time delay that shuts down the lights automatically if no motion or sound is detected within a set time period. Exit Signs – Exit signs were found to be efficient LED-type. Exterior Lighting – The exterior lighting fixtures surveyed during the building audit were found to contain metal halide lamps. Exterior lighting is controlled by centrally located timers. Appliances and process equipment SWA has conducted a general survey of larger, installed equipment. Appliances and other miscellaneous equipment account for a significant portion of electrical usage within the building. Typically, appliances are referred to as “plug-load” equipment, since they are not inherent to the building’s systems, but rather plug into an electrical outlet. Equipment such as process motors, computers, computer servers, radio and dispatch equipment, refrigerators, vending machines, printers, etc. all create an


electrical load on the building that is hard to separate out from the rest of the building’s energy usage based on utility analysis. The building contained several snack and drink-vending machines. Some units were observed to have the Energy Star label and all units are assumed to be efficient based on the age of the building and equipment.

Computers left on in the building consume a lot of energy. A typical desk top computer uses 65 to 250 watts and uses the same amount of energy when the screen saver is left on. Televisions in meeting areas use approximately 3-5 watts of electricity when turned off. SWA recommends all computers and all appliances (i.e. coffee makers, televisions, etc) be plugged in to power strips and turned off each evening just as the lights are turned off. The Technology building computers should be programmed for the power save mode, to shut down after a period of time that they are not been used.


Elevators The building contains a single hydraulic elevator. This unit was observed to be in good condition, as to be expected with the age of the equipment. Other electrical systems The building contains two GE transformers of size; 112.5 kVA and 225.0 kVA. These units were observed to be in good, age-appropriate condition.


Ciarco Learning Center

Building Characteristics The two-story with partial basement, 51,000 square feet Philip Ciarco Learning Center Building, formally the Arnold Constable Department Store, was purchased and renovated in 1999. It houses different classrooms, administrative offices and a common snack area.

Building Occupancy Profiles Its occupancy is approximately 250 students and faculty weekly Monday through Friday. The building is open 6am until 11pm, according to security personnel. Building Envelope Due to favorable weather conditions (min. 18ºF delta-T in/outside and no/low wind), some exterior envelope infrared (IR) images were taken during the field audit. Thermal imaging technology helps to identify energy-compromising problem areas in a non-invasive way. General Note: All findings and recommendations on the exterior envelope (base, walls, roofs, doors and windows) are based on the energy auditors’ experience and expertise, on construction document reviews (if available) and on detailed visual analysis, as far as accessibility and weather conditions allowed at the time of the field audit.


Exterior Walls The exterior wall envelope is mostly constructed of a cut stone veneer panel system with brick accents in the front areas, and brick veneer in the rear, over a steel and concrete block with an assumed three inches of fiberglass batt cavity insulation. The interior is mostly painted gypsum wallboard. Note: Wall insulation levels could not be verified in the field or on construction plans, and are based upon similar wall types and time of construction.

Exterior and interior wall surfaces were inspected during the field audit. They were found to be in overall acceptable condition, with only a few signs of uncontrolled moisture, air-leakage or other energy-compromising issues located mostly at the front and right side of the building. The following specific exterior wall problem spots and areas were identified:


Roof The building’s roof is predominantly a flat and parapet type over steel decking, with a dark-colored EPDM single membrane finish. It appears to have been installed fairly recently. Zero inches of detectable attic/ceiling insulation, and two and a half inches of XPS (extruded polystyrene, blue or pink) foam board roof insulation were recorded.


Note: Roof insulation levels could not be verified in the field or on construction plans, and are based upon similar roof types and time of construction. Roofs, related flashing, gutters and downspouts were inspected during the field audit. They were reported to be in overall acceptable condition, with only a few signs of uncontrolled moisture, air-leakage or other energy-compromising issues. The following specific roof problem spots were identified:


Base The building’s base is composed of a below-grade basement with a slab floor with a perimeter footing with concrete block foundation walls and no detectable slab edge/perimeter insulation. Slab/perimeter insulation levels could not be verified in the field or on construction plans, and are based upon similar wall types and time of construction. The building’s base and its perimeter were inspected for signs of uncontrolled moisture or water presence and other energy-compromising issues. Overall the base was reported to be in acceptable/age appropriate condition, with only a few, uncritical signs of uncontrolled moisture, air-leakage and/ or other energy-compromising issues. The following specific base problem spots were identified:


Windows The building contains two different types of windows.

1. Fixed type windows with a non-insulated aluminum frame, clear single glazing and some interior blinds. The windows are located mostly on the main floor and appear to be original.

2. Fixed type windows with an insulated aluminum frame, low-E coated/gas-

filled, double glazing and some interior blinds. The windows are located mostly on the second floor and appear to be original.

Windows, shading devices, sills, related flashing and caulking were inspected as far as accessibility allowed for signs of moisture, air-leakage and other energy compromising issues. Overall, the windows were found to be in acceptable condition with some signs of uncontrolled moisture, air-leakage and/ or other energy-compromising issues. The following specific window problem spots were identified:

The following IR images further illustrate some of the window issues mentioned above:


Exterior Doors The building contains only one basic type of exterior door.

1. Glass with aluminum/steel frame type exterior doors. They are located on the main floor and appear to be original.

All exterior doors, thresholds, related flashing, caulking and weather-stripping were inspected for signs of moisture, air-leakage and other energy-compromising issues. Overall, the doors were found to be in acceptable/age appropriate condition with no signs of uncontrolled moisture, air-leakage and/or other energy-compromising issues. The following specific door problem spot was identified:

Building air-tightness Overall, the field auditors found the building to be reasonably air-tight, with only a few areas of suggested improvements.


The air tightness of buildings helps maximize all other implemented energy measures and investments, and minimizes potentially costly long-term maintenance, repair and replacement expenses.

Mechanical Systems HVAC for this building is zoned for internal and external areas and consists of four DX gas-fired rooftop package units with terminal VAV boxes, providing each room with individual temperature control in a master-slave arrangement. The units are equipped with VFD and return duct-mounted carbon-dioxide sensors. The units themselves change from heating to cooling mode or vice versa depending on the main return air temperature signal, which is set at 72 deg F. The VAVs have hot water reheat coils. The primary air is introduced at 55 deg F, and reheated where required. These units are equipped with enthalpy-controlled economizers, and supply the ASHRAE recommended minimum fresh air mixed with the return air. These units are about 10 years old and in good condition. They still have about 30% life remaining. The rooftop units provide fresh air for ventilation to the building as per demand. There are toilet exhaust fans, and elevator room exhaust fan on roof. All are in good condition. Hot water baseboard heaters are located under perimeter windows to prevent cold drafts. These heaters are in good condition as well. There are also some hot water cabinet heaters in vestibules, and eight small hot water unit heaters to heat the basement. All equipment is in very good condition. Hot water is generated by two Raypak boilers located in the mechanical room in basement. Each is rated for 1,203 MBH output at estimated 80% efficiency. The boilers work in lead-lag fashion. It is very rare that two boilers would operate together, except in extreme temperatures below 0ºF. Each boiler was installed in 1998, and each boiler is only 11 years old. The boilers have 13 years remaining of their expected service life of 24 years, as published in the 2007 ASHRAE HVAC Applications Handbook for steel tube boilers. They are in good condition and use electronic temperature control. Hot water is pumped by a pipe-mounted hydraulic pump with a 3 hp motor, which is in good condition. The building contains a Honeywell direct digital Building Automation System, which controls the heating and cooling equipment and VAV boxes. It is tied to the Pitkin central Trane BAS. The building has occupied, unoccupied, and night set back settings already incorporated into the BAS. In general, there were no major complaints about the ability of the heating and cooling systems to provide adequate heating and/or cooling to the building occupants. Measurement or verification of the code compliance for ventilation was not part of this energy study. However, should any retro-commissioning or system upgrades be made part of some capital improvement project, the scope should include readjustment of outside air dampers at louvers, roof ventilator and other units to provide code compliant level of outside air to the spaces.


Domestic Hot Water There is one small, electric, domestic hot water heater manufactured by AO Smith. The heater was not accessible; it only serves two bathrooms and is not a significant energy user.

Electrical Systems

Lighting Appendix B contains a complete inventory of lighting through the building, estimated power consumption, as well as proposed lighting schedules. Interior Lighting - The Ciarco Learning Center building currently contains mostly T8 fluorescent fixtures with electronic ballasts. Based on measurements of lighting levels for each space, there are no vastly over-illuminated areas. There are many occupancy sensors located in various classrooms and offices. Typically, occupancy sensors have an adjustable time delay that shuts down the lights automatically if no motion or sound is detected within a set time period. Exit Signs – All exit signs were found to be efficient LED-type. Exterior Lighting – The exterior lighting fixtures surveyed during the building audit were found to contain metal halide lamps. Exterior lighting is controlled by a centrally located timer. Appliances and process equipment SWA has conducted a general survey of larger, installed equipment. Appliances and other miscellaneous equipment account for a significant portion of electrical usage within the building. Typically, appliances are referred to as “plug-load” equipment, since they are not inherent to the building’s systems, but rather plug into an electrical outlet. Equipment such as process motors, computers, computer servers, radio and dispatch equipment, refrigerators, vending machines, printers, etc. all create an electrical load on the building that is hard to separate out from the rest of the building’s energy usage based on utility analysis. The building contained several snack and drink-vending machines.


Computers left on in the building consume a lot of energy. A typical desktop computer uses 65 to 250 watts, and uses the same amount of energy when the screen saver is left on. Televisions in meeting areas use approximately 3-5 watts of electricity when turned off. The Ciarco Learning Center building computers are generally programmed for the power save mode, to shut down after a period of time that they have not been used. Elevators There are two elevators located in the building. The elevators were originally manufactured and installed by OTIS in 1998. These elevators are motor generator sets located in an elevator machine room on the roof. Although there would be some efficiency to be gained by replacing the MG sets with more modern SCR electronic driven equipment, the infrequent use of the elevator would yield insignificant energy savings. Other electrical systems There are no other major electrical systems impacting energy consumption or conservation at the building. There is no emergency generator at this building.


PROPOSED ENERGY CONSERVATION MEASURES Energy Conservation Measures (ECMs) are recommendations determined for the building based on improvements over current building conditions. ECMs have been determined for the building based on installed cost, as well as energy and cost-savings opportunities. Where applicable, assumptions used for ECMs and specific details are listed on each individual ECM description page. Based on the size of the campus, the number of buildings involved and the number of ECMs recommended; SWA has compiled like ECMs into different groups based on similar application. The following Table 4 gives a summary of ECMs based on grouping.

Table 4: Bergen Community College – ECM Categories

Category ECM Numbers Description

1 1-5 Install Vending Misers on all soda and snack vending machines

2 6-10 Provide Demand Control Ventilation using Carbon Dioxide sensors

3 11-30 Install Variable Frequency Drives on Motors

4 31-53 Building Lighting Upgrades

5 54-55 Replace Existing Electric Water Heaters with Gas Water Heaters

6 56 Install Automatic Swimming Pool Cover

7 57-112 Install NEMA Premium Efficiency Motors

8 113-125 Install Heat Recovery Units

9 126 Replace Electric Heaters in New Student Center Construction

10 127 Replace Existing Domestic Water Heater with High Efficiency Unit

11 128-129 Replace refrigerators with Energy Star units

12 130-131 Install Photovoltaic Renewable Energy Panels

13 132-138 Replace Existing Gas Boilers with Condensing Boilers

14 139-140 Retro-commissioning of mechanical equipment

15 141-149 Replace inefficient Transformers


ECM#1-5: Install Vending Misers on all soda and snack vending machines

Description: Each building within the Bergen Community College contains vending machines that are leased through a third-party vendor. SWA recommends verification of all vending machines ENERGY STAR label before the purchase and installation of vending miser devices. When vending contracts are up for renewal SWA recommends requesting ENERGY STAR label vending machines. Energy vending miser devices are now available for conserving energy with these machines. There is not a need to purchase new machines to reduce operating costs and greenhouse gas emissions. When equipped with the vending miser devices, refrigerated beverage vending machines or coolers use less energy and are comparable in daily energy performance to new ENERGY STAR qualified machines. Vending miser devices incorporate innovative energy-saving technology into small plug-and-play devices that installs in minutes, either on the wall or on the vending machine. Vending miser devices use a Passive Infrared Sensor (PIR) to: Power down the machine when the surrounding area is vacant; Monitor the room's temperature; Automatically repower the cooling system at one- to three-hour intervals, independent of sales; Ensure the product stays cold. Snacks vending miser devices also use a Passive Infrared Sensor (PIR) to determine if there is anyone within 25 feet of the machine. It waits for 15 minutes of vacancy, then powers down the machine. If a customer approaches the machine while powered down, the snacks vending miser will sense the presence and immediately power up. Installation cost Estimated installed cost: $6,239 Source of cost estimate: Vending Miser, Similar Projects Economics:

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1-5 Vending Misers 6,239 0 6,239 52,616 10.1 0 0.2 0 7,503 32 75,028 0.8 1103 34 120 57,113 72,084

Assumptions: SWA calculated the savings for this measure using measurements taken the days of the field visits and using the billing analysis. SWA assumes operational hours based on field observations, billing analysis and staff interviews.


Rebates/financial incentives: There are no incentives available for this measure at this time from New Jersey Clean Energy Program (NJCEP)

Please see Appendix F for more information on Incentive Programs.


ECM#6-10: Provide Demand Control Ventilation using Carbon Dioxide Sensors Description: The air handling units in Pitkin, Ciarco and Ender Hall contain large rooms such as cafeterias, libraries or gymnasiums and these provide a fixed amount of outside air during operational hours. Conditioning outside air can be a significant portion of the heating or cooling load. Demand control ventilation involves providing carbon dioxide (CO2) sensors in the occupied space or return ducts which can partially or totally shut down the outside air intake dampers in the air handling unit when the space is underutilized or unoccupied. The spaces mentioned above are used frequently but may also remain vacant for long periods during the day. By keeping the CO2 level less than 1000ppm within the conditioned space, the outside air is reduced to the minimum allowable in compliance with ASHRAE requirements. This control method can greatly reduce the heating or cooling load seen by the air handling unit and therefore save energy. Along with the sensors, necessary motorized air intake dampers will also have to be installed. Installation cost: Estimated installed cost: $34,700 Source of cost estimate: RS Means Cost Data & Similar Projects Economics:

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Recovery Units

34,700 0 34,700 29,421 5.6 15,723 2.0 0 29,885 15 448,277 1.2 1192 79 86 316,960 224,268

Assumptions: SWA calculated the savings for this measure using nameplate data and using the billing analysis. SWA estimated that the spaces are not utilized for 40% of the day; i.e. that fresh air load will be reduced by 40%. Therms savings are assumed to result for 4 winter months resulting from preheating the outside air, and kWh savings for 4 summer months by precooling the outside air. There are no savings assumed for the shoulder season.


Rebates/financial incentives: There are no incentives available for this measure at this time from New Jersey Clean Energy Program (NJCEP).



ECM#11-30: Install Variable Frequency Drives on Motors

Description: Variable Frequency Drives (VFD) or Variable Speed Drives (VSD) allows users to gain advantage in both productivity improvements and reduced energy. A variable frequency drive is an electronic controller that adjusts the speed of an electric motor by regulating the power being delivered. Variable-frequency drives provide continuous control, matching motor speed to the specific demands of the work being performed. SWA identified many motors installed on pumps and air-handling units that would benefit by reducing speed through a VFD. In particular, the DX gas-fired rooftop units in Pitkin building were equipped with vari-vane control on supply fans to achieve reduced air quantity when the duct pressure increases. This system is over 20 years old and does not function as intended anymore. SWA recommends replacing this control system with VFDs operated from a pressure signal in the duct. For other equipment, it may be possible to control VFDs from the return duct temperatures. For example during the cooling season, it may be possible to set the VFD to run at only 80% speed normally and go to 90% speed if the return duct temperature climbs above 72ºF and to 100% if the temperature goes above 74ºF. Most equipment selected by SWA and listed under “Assumptions” below would benefit in this fashion. Installation cost: Estimated installed cost: $19,083 Source of cost estimate: Similar projects and DOE Motor Master International selection & savings analysis Economics:

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11-30 VFDs 56,270 37,188 19,083 89,146 17.1 0 0.4 0 12,659 12 151,904 1.5 696 58 66 105,431 122,129


Assumptions: SWA calculated the savings for this measure using nameplate data and using the billing analysis. Since most equipment did not have a means to control the VFD and therefore the speed a conservative 10% savings was estimated for each piece of equipment. Existing kWh was obtained using the DOE Motor Master International selection and calculator along with assumptions of operating hours. In general, the entire campus operates 6 days a week, except the administration areas. It was assumed that the buildings operate for 16 hours/day on weekdays and 10 hours on Saturday. The following table lists the hours assumed:

Bldg. Hours Systems identified for replacement with premium efficiency motors Pitkin 768 P-12 Pitkin 1344 P-4 Pitkin 4160 AC-S-1 Supply fan, AC-S-1 Return fan, AC-S-2 Supply fan, AC-S-2 Return fan, AC-T-3 Pitkin 4576 AC-L-1 Supply fan, AC-L-1 Return fan, AC-L-4 Supply fan, AC-L-4 Return fan, AC-1U, R-1U, AC-3G Pitkin 4576 AC-L-2 Supply fan, AC-L-2 Return fan, AC-L-3 Supply fan, AC-L-3 Return fan, AC-1G, AC-2G

Rebates/financial incentives: NJ Clean Energy – SmartStart Program – Premium Motors Incentive for three-phase motors, as follows:



ECM #31-53: Building Lighting Upgrades

Description: Bergen Community College contains mostly modern and efficient lighting with a limited amount of inefficient lighting still present. The typical interior fixtures in most buildings are recently installed linear and U-shaped T8 electronically ballasted fixtures of various lengths and CFL’s (Compact Fluorescent Lamp). Also present in some areas are linear T5 fixtures with electronic ballasts of various lengths as well as biaxial fluorescent fixtures. However, inefficient lighting such as T12 fixtures with magnetic ballasts, high bay metal halide and HPS (high pressure sodium), and incandescent fixtures were also observed. SWA recommends that the T8, T5, CFL and biaxial fluorescent fixtures should remain. The inefficient T12 fixtures with magnetic ballasts should be replaced with T8 electronic ballast fixtures, the incandescent fixtures should be replaced with CFL’s and the high bay metal halide and HPS fixtures should be replaced with high bay T5 fixtures. Various interior lighting controls were observed as a majority of the lighting was controlled by manual switches; however, most of the public area lighting in the lobbies and corridors is controlled by circuit breakers with integrated timers. There are also numerous wall mounted occupancy sensors installed in various offices, classrooms and nurses stations and dimmer switches in some computer labs. In an effort to reduce usage SWA is making recommendations regarding controls in the form of occupancy sensor installation and bi-level stairwell lighting. Exit signs were found to be a mix of LED type and fluorescents. SWA recommends that the LED type remain and the replacement of all fluorescent exit lights with LED exit lights. The exterior lighting surveyed during the building audit was found to be a combination of metal halide, halogen, HPS, incandescent and CFL fixtures. SWA recommends that the CFL’s remain, the replacement of the metal halide and HPS fixtures with pulse start metal halide fixtures and installing CFL’s in place of the halogens and incandescent. The parking lights surveyed during the audit are observed to be a combination of single, double, triple and quadruple headed pole mounted fixtures and ceiling suspended high bay fixtures with metal halide and HPS lamps that SWA recommends replacing with pulse start metal halides. Exterior and Parking light are typically controlled by timers. See attached lighting schedule in Appendix A for a complete lighting inventory throughout the building and estimated power consumption. Installation cost Estimated installed cost: $885,148 Source of cost estimate: RS Means


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31-53

Building Lighting

Upgrades 944,183 59,035 885,148 1,680,133 350.0 0 6.9 97,214 336,119 32 4,729,922 2.6 786 25 38 3,069,984 2,301,782

Assumptions: SWA calculated the savings for this measure using measurements taken the days of the field visits and using the billing analysis. SWA assumes operation cost savings based on avoided bulb replacement when upgrading to lighting that consists of longer rated burn hours. SWA assumes operational hours based on field observations, billing analysis and staff interviews. Rebates/financial incentives: NJ Clean Energy – SmartStart Program – Occupancy Sensors ($20 per sensor) NJ Clean Energy – SmartStart Program – T-5 and T8 lamps with electronic ballast in existing facilities ($15 per fixture) NJ Clean Energy – SmartStart Program – Metal Halide with Pulse Start ($25 per fixture)



ECM#54-55: Replace Existing Electric Water Heaters with Gas Water Heaters

Description: Electric heaters are inefficient and expensive to operate since they use electricity. SWA identified an AO Smith 6kW electric water heater in the Dental Laboratory and a Hubbell 54kW electric domestic water heater serving the Theater section. Both heaters are located in Pitkin building and are in good condition. Despite this, SWA recommends replacing these heaters with gas-fired water heaters. Natural gas pipe is nearby for both and the flue can easily be extended to the outside. Installation cost Estimated installed cost: $9,200 Source of cost estimate: RS Means and similar projects Economics:

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54-55

Electric to Gas DHW

heaters 9,600 400 9,200 34,320 6.6 -1,171 0.0 0 2,959 20 38,465 3.1 318 16 31 21,869 253,744

Assumptions: SWA calculated the savings for this measure using measurements taken the day of the field visit and using the billing analysis. SWA assumes that current electric DHW will be replaced with a new boiler with 85% efficiency. Rebates/financial incentives: NJ Clean Energy – Natural Gas Water Heating, Gas-fired water heaters >50 gallons – 300 MBH ($2.00 per MBH)



ECM#56: Install Automatic Swimming Pool Cover

Description: Indoor swimming pools are big energy consumers. Pools lose energy in a variety of ways, but evaporation is by far the largest source of energy loss for swimming pools. The reason evaporation has such an impact is that evaporating water requires tremendous amounts of energy. It only takes 1 Btu to raise 1 pound of water 1ºF, but each pound of 80°F water that evaporates takes 1,048 Btu’s of heat out of the pool. Indoor pools also require room ventilation to control indoor humidity caused by the large amount of evaporation. Without a proper ventilation system, high indoor humidity levels will cause numerous problems, including condensation on cold surfaces and rusting of structural components. The energy required to run this ventilation system adds to the cost of operating an indoor pool. Since evaporation is the major source of heat loss for swimming pools, SWA recommends installing an automatic pool cover to minimize evaporation. Pool covers on indoor pools reduce evaporation and consequently the need to ventilate indoor air and replace it with unconditioned outdoor air, saving large amounts of energy. Exhaust fans can be shut off when the pool is covered. Building maintenance is lowered by reducing humidity-related problems. Pool covers conserve make-up water by 30-50% and can reduce chemical consumption. Covers must be managed properly for safety. They should always be completely removed before anyone enters the pool. The automatic pool cover would require new stainless steel rails to be installed alongside the pool along with a stainless steel operating mechanism. Although the BAS could draw in and out the covers automatically with no human presence, for safety, it is recommended that a pool attendant does so by pressing a switch. This push button type switch will make it easy to cover and uncover the pool with minimal human intervention and could even be deployed during daytime when the pool is not in use. Installation cost: Estimated installed cost: $27,500 (includes 13,500 for labor) Source of cost estimate: Vendor


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56 Swimming Pool Cover 27,500 0 27,500 32,516 6.2 2,805 0.7 -1,820 7,384 15 138,058 3.7 303 20 25 45,129 77,368

Assumptions: SWA calculated the savings for this measure using the Shah Method on an online calculator. Presently, the pool is uncovered and conditioned for 8760 hours in a year. It was assumed that the pool would remain uncovered for only 4000 hours after this measure is implemented. Pool water temperature is maintained at 82ºF and indoor air at 85ºF and 60% RH. Rebates/financial incentives: There are no incentives available for this measure at this time from New Jersey Clean energy Program (NJCEP).



ECM#57-112: Install NEMA Premium Efficiency Motors

Description: SWA discovered that many motors running the fans, air-handling units, pumps, and other rotating equipment were of standard efficiency and some were actually original from 1972. Electric motors have a significant impact on the total energy operating costs in a building, and may vary widely in terms of energy efficiency. The NEMA Premium program was established to assist users to optimize motor systems efficiency in light of power supply and utility deregulation issues. NEMA Premium motors and optimized systems reduce electrical consumption thereby reducing pollution associated with electrical power generation. Please see the list of equipment identified by SWA on the next page that would benefit from this ECM. Installation cost: Estimated installed cost: $87,241 Source of cost estimate: Similar projects and DOE Motor Master International selection & savings analysis Economics:

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CO

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d, lb

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57-112

Motor Replacements 94,494 7,253 87,241 123,653 24.0 0 0.5 1,960 19,579 20 354,076 4.5 351 18 22 198,732 169,405


Assumptions: SWA calculated the savings for this measure using nameplate data and the billing analysis. The DOE Motor Master International selection and calculator was used to estimate existing and proposed efficiency improvements, along with assumptions of use hours. In general, the entire campus is used for 6 days a week, except the administration areas. It was assumed that the buildings operate for 16 hours/day on weekdays and 10 hours on Saturday. The following table lists the hours assumed:

Bldg. Hours Systems identified for replacement with premium efficiency motor

Pitkin 768 P-8, P-12 Pitkin 1344 P-4, P-15 Pitkin 1536 P-16 Pitkin 4160 AC-2A, E-1A, AC-S-1,AC-S-2, RTU-2A, RTU-2B, RTU-3A, RTU-3B Pitkin 4576 AC-1L, R-1L, AC-L-1, AC-L-4, AC-1U, R-1U, R-2U, E-4U, E-5U, RT-1, RT-2, RT-3, AC-1SC, R-1SC, AC-2SC Pitkin 4576 R-2SC, AC-L-2, AC-L-3, AC-1G, AC-3G, AC-4G, AC-5G, AC-6G, AC-T-3 Ciarco 4160 RT-1, RT-2, RT-3, RT-4, Hot water pumps West 1344 P-1, P-2 Tech 1536 P-2 Tech 768 P-1


Rebates/financial incentives: NJ Clean Energy – Premium Motors Incentive for three-phase motors, as follows:



ECM#113-125: Install Heat Recovery Units

Description: SWA noted three DX gas-fired RTUs at the Pitkin Building that deliver conditioned air into the corridors. It was found that the building exhaust is greater than building make-up (supply) air creating pressure differences that allow air movements. This situation can allow Bergen Community College to replace some existing exhaust fans with energy recovery ventilators that not only exhaust air, but also supply the building with an equivalent volume of air. Generally, heat recovery is intended to extract heat from exhaust air, prior to being exhausted. It can be recovered in a variety of ways – one, by installing small fan powered air to air heat exchanger generally called a Heat Recovery Ventilator (HRV), or two, by installing a fan-powered, heat recovery unit with a rotating sensible heat recovery wheel called an Energy Recovery Ventilator (ERV), and three, by installing a simple air-to-air heat exchanger with no moving parts. SWA recommends using all three measures. It follows that the three DX gas-fired RTUs will not be required once this measure is implemented. SWA recommends replacing exhaust fans E-1L, E-2L, E-4U, E-5U, E-5G, E-8G, EF-T-4, and EF-1 (Ciarco) with simple, ceiling space mounted ERVs. Some of these roof-mounted fans are mushroom-type; the existing fan enclosure could be used as exhaust cap. It will require bringing a new, small fresh air duct to the ERV from the roof, or wall, which must be insulated. This measure will reduce the total exhaust air from the building. SWA recommends replacing exhaust fans E-6G and E-7G with fan-powered heat recovery units, complete with heat recovery wheels. These fans are generally large, and proper roof-mounted HRU would be required with substantial duct work. SWA recommends replacing the large kitchen hood exhaust fan, E-1U, with a heat recovery unit mounted on the roof, outside the fan room. As this fan is for kitchen hood, heat recovery wheels cannot be used; rather, a special, cleanable, sheet metal air-to-air heat exchanger would need to be deployed. The exhaust side could be powered with the existing fan; the supply side will need a new blower to deliver approximately 22,000 CFM of air. This partly conditioned air can be delivered to the building corridors, but requires substantial duct work. SWA recommends installing simple air-to-air heat exchangers between the following systems at Ender Hall: Air-to-air HEX between AC-1 and EF-3 and between HVAC-19 and EF-2. Conditioned air is being exhausted by these fans to the outside; at the same time, AC units are taking in fresh air from the outside for ventilation. Simple air-to-air heat exchangers consist only of sheet metal work and do not contain any moving parts. Installation cost: Estimated installed cost: $194,180 Source of cost estimate: RS Means and other projects


Economics:

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113-125

Heat Recovery

Units 194,180 0 194,180 41,713 8.0 22,306 2.9 0 42,494 20 849,884 4.6 338 17 21 426,493 318,133

Assumptions: SWA calculated the savings for this measure using measurements taken the day of the field visit and using the billing analysis. Therms savings are assumed based on a winter period of four months and resulting from preheating the outside air. The kWh savings are assumed based on a summer period of four months and resulting from pre-cooling the outside air. There are no savings assumed for the shoulder seasons. Rebates/financial incentives: There are no incentives available for this measure at this time from New Jersey Clean Energy Program (NJCEP).



ECM#126: Replace Electric Heaters in New Student Center Construction

Description: SWA noted that first floor of the Student Center is undergoing construction and was under demolition at the time of audit. The new design was complete with electric heaters as follows:

• Electric Air Curtains, EAC-1,2,3,4, totaling 42.3kW • Electric heaters, EWH-1,2, totaling 8kW • Fan Powered Terminal Units, FPB-1 through 7, Reheat coils totaling 64kW

SWA considered replacing these electric heaters with hot water units. It would require installing a new 400MBH condensing boiler along with new hot water pipes, valves, controls, gas connection, and hot water coils instead of electric coils. The equipment with electric heaters has not been ordered yet, and there may be an opportunity to incorporate hot water system in the new design. Installation cost: Estimated installed cost: $115,000 Source of cost estimate: Similar projects and client feedback Economics:

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126

Replace electric

heaters in new

Student Center

construction

115,000 0 115,000 206,726 39.6 -7,836 -0.1 0 16,543 20 330,865 7.0 188 9 10 47,723 191,533


Assumptions: SWA calculated the savings for this measure using nameplate data taken and using the billing analysis. SWA assumed 1728 hours of use for air curtains and electric heaters, and 1872 hours of use for electric reheat which may be used throughout the year. The new boiler is assumed to operate around 2,000 hours in a year, at 90% efficiency. Rebates/financial incentives: There are no incentives available for this measure at this time from New Jersey Clean energy Program (NJCEP).



ECM#127: Replace Existing Domestic Water Heater with High Efficiency Unit

Description: The Technology Education Center building contains one AO Smith Domestic Hot Water heater with standard efficiency and an externally connected storage tank. SWA identified an opportunity to decrease energy usage by replacing this unit with a single, sealed-combustion DHW heater with storage contained within the unit. This unit (DHW-3) serves the pantry portion of the building. Installation cost Estimated installed cost: $2,636 Source of cost estimate: RS Means and similar projects Economics:

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CO

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126

Replace DHW-3 in

Tech building

3,130 494 2,636 0 0.0 167 0.0 60 333 10 2,841 7.9 31 3 4 176 1,954

Assumptions: SWA calculated the savings for this measure using measurements taken the day of the field visit and using the billing analysis. SWA assumes that current electric DHW will be replaced with a new boiler with 85% efficiency. Rebates/financial incentives: NJ Clean Energy – Natural Gas Water Heating, Gas-fired water heaters >50 gallons – 300 MBH ($2.00 per MBH)



ECM#128-129: Replace refrigerators with Energy Star units Description: On the day of the site visit, SWA observed that there were thirty-eight old refrigerators of the 2.7 cu. ft. model and seventeen 17 cu. ft. models which were not Energy Star rated (using approximately 254 and 773 kWh/year each). SWA recommends replacing these existing refrigerators with ENERGY STAR®, or equivalent models. Besides saving energy, the replacement will also keep the kitchen and other areas cooler. Installation cost Estimated installed cost: $9,719 Source of cost estimate: Vendor, Similar Projects Economics:

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127-128

Refrigerator replacement 9,719 0 9,719 8,895 1.0 0 3.0 0 1,142 32 11,353 8.5 17 1 19 7,606 12,187

Assumptions: SWA calculated the savings for this measure using measurements taken the days of the field visits and using the billing analysis. SWA assumes operation cost savings based on avoided bulb replacement when upgrading to lighting that consists of longer rated burn hours. SWA assumes operational hours based on field observations, billing analysis and staff interviews. Rebates/financial incentives: There are no incentives available for this measure at this time from New Jersey Clean energy Program (NJCEP).



ECM#130-131: Install Photovoltaic Renewable Energy Panels

Description: Currently, Bergen Community College does not use any renewable energy systems (except for one module for a student research project used to power up a computer). Renewable energy systems, such as photovoltaic panels, can be mounted on the building roof facing south, and can offset a portion of the purchased electricity for the building. Power stations generally have two separate electrical charges: usage and demand. Usage is the amount of electricity in kilowatt-hours that a building uses from month to month. Demand is the amount of electrical power that a building uses at any given instance in a month period. During the summer periods, when electric demand at a power station is high due to the amount of air conditioners, lights, equipment, etc being used within the region, demand charges go up to offset the utility’s cost to provide enough electricity at that given time. Photovoltaic systems not only offset the amount of electricity use by a building, but also reduce the building’s electrical demand, resulting in a higher cost savings as well. SWA presents below the economics, and recommends at this time that BCC review installing a 1 MW PV system at the Pitkin Building and a 20kW system at the Ciarco building to offset electrical demand and reduce the annual net electric consumption for each respective building.BCC should review guaranteed incentives from NJ rebates to justify the investment. BCC may consider applying for a grant and/or engage a PV generator/leaser who would install the PV system and then sell the power at a reduced rate. PSE&G provides the ability to buy SRECs at $600/MWh or best market offer. SWA also considered installing canopy type solar PV panels above parking lot A, which is a two-story concrete structure with at least 50,000 sq ft available. The parking lot is located approximately 500 ft away from the main electric bus and will require extensive digging to run electric cables in underground trenches. Some areas are completely inaccessible under the building. This will require a substantial investment and is not advisable, especially when a large 1MW plant can easily be located on the existing building roof. SWA recommends the installation of a revenue-grade photovoltaic electric meter that can be read and monitored from the central BAS and/or the BCC website. This requires that BCC installs current transformers (CTs) with K-Y-Z pulse output capabilities on the main electric trunk from the photovoltaic panels. These pulses can be read from SCADA type data acquisition boxes and data can be sent over either telephone or internet lines to be deciphered by the BAS. From here, data can be output to CSV format to the BCC website to educate both faculty and students. The size of the system was determined using the amount of roof surface area, as well as the facilities annual base load. A PV system could be installed on a portion of the sloped roof that faces South or West. A commercial multi-crystalline 230 watt panel (17.2 volts, 7.16 amps) has 17.5 square feet of surface area (12.5 watts per square foot). A 1MW system needs approximately 4,400


panels, which would take up 80,000 square feet; and a 20kW system needs approximately 217 panels, which would take up 3,800 square feet. *It is important to note that the size of the recommended photovoltaic systems is based on maximum-sized systems. The recommended system sizes are based on maximum available area to mount a photovoltaic system and assumed that the entire available area will be used. SWA recommends that Bergen Community College installs the largest system allowed within practical means and consideration for financial restraints. Roof-mounted systems require structural analysis before installation to ensure that the base structure is capable of supporting the entire weight of the system.

Installation cost: Estimated installed cost: $7.5M (labor included at $3/Watt, totaling $3.0M) for Pitkin building $140,000 (labor included at $3/Watt, totaling $60,000) for Ciarco building

Source of cost estimate: Similar projects Economics:

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129-130

PV System

Installation 7,875,000 50,000 7,825,000 1,191,141 1050.0 0 10.2 0 884,167 25 15,396,130 8.9 97 4 8 3,471,434 1,631,863

Assumptions: SWA estimated the cost and savings of the system based on past PV projects. SWA projected physical dimensions based on a typical Polycrystalline Solar Panel (123 Watts, Model ND-123UJF). PV systems are sized based on Watts, and physical dimensions for an array will differ with the efficiency of a given solar panel (W/sq ft).


Rebates/financial incentives: NJ Clean Energy - Solar Renewable Energy Certificate Program. Each time a solar electric system generates 1,000kWh (1MWh) of electricity, a SREC is issued which can then be sold or traded separately from the power. The buildings must also become net-metered in order to earn SRECs as well as sell power back to the electric grid. A total of $680,650/year, based on $600/SREC, has been incorporated in the above cost for the Pitkin building and $34,000 for the Ciarco building; however it requires proof of performance, application approval and negotiations with the utility.



ECM #132-138: Replace Existing Gas Boilers with Condensing Boilers

Description: Most existing hydronic boilers in the Pitkin, Ciarco, and Ender Hall buildings are in generally good condition. These boilers are used for building heating, and domestic hot water service. Many boilers operate in lead-lag fashion, so the bulk of the heating load is carried by the lead. SWA analyzed the economics of replacing and upgrading the boilers with new condensing technology. Condensing boilers allow condensation of moisture in flue gases, allowing lower flue gas temperatures and increasing efficiencies of up to 95%. The lag boilers are not recommended for replacement, because they are used sparingly and are in generally good condition. The boiler replacement has been adjusted to reduce the cost by assuming that the new efficient boiler will be used most of the time, with the less efficient boiler being used as the lag boiler. The old boiler could be kept on site as a spare for the second boiler for any emergency. Installation cost Estimated installed cost: $318,247 Source of cost estimate: RS Means and similar projects Economics:

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131-137

Condensing Boilers 332,665 14,418 318,247 128 0.0 17,673 2.1 5,600 34,929 20 588,857 9.1 120 6 9 191,921 206,948


Assumptions: SWA assumed the efficiency of condensing boilers as 92% for calculating the therms saved. Boilers identified for replacement with condensing boilers Pitkin: Replace Cleaver Brooks boiler serving 3rd floor college center Pitkin: Replace Patterson Kelly boiler serving upper floors business section Pitkin: Replace Boiler #1A Lochinvar DHW in main mechanical room Pitkin: Replace Boiler #2 Lochinvar boiler in main mechanical room with new 1500MBH rating Pitkin: Replace Boiler #3 Lochinvar boiler in main mechanical room with new 1500MBH rating Ciarco: Replace one (lead) Raypak Boiler in with new 1500MBH rating West: Replace Boiler #1 RBI boiler in main mechanical room

Rebates/financial incentives: NJ Clean Energy - Gas-fired water heaters ≥ 300MBH – 1500 MBH ($1.75 per MBH) NJ Clean Energy - Gas-fired water heaters ≥ 1500MBH – 4000 MBH ($1.00 per MBH)



ECM#139-140: Retro-commissioning of mechanical equipment

Description: Retro-commissioning is a process that seeks to improve how building equipment and systems function together. Depending on the age of the building, retro-commissioning can often resolve problems that occurred during design or construction and/or address problems that have developed throughout the building’s life. Most control systems are never re-adjusted after the building is in operation to fine tune any settings that may help the building run more efficiently. Owners often undertake retro-commissioning to optimize building systems, reduce operating costs, and address comfort complaints from building occupants. SWA recommends retro-commissioning at Ender Hall building to optimize system operation. Most roof top HVAC units at the building were installed in 1970s and have been in operation since. The retro-commissioning process should include a review of existing operational parameters for all installed equipment, such as fresh air dampers, and terminal air delivery grilles. During retro-commissioning, the individual temperatures of supply air should also be reviewed to identify opportunities for optimizing system performance. SWA recommends retro-commissioning at Ciarco building to optimize system operation. HVAC system and hydronics at the building were installed in 1998 and have been in operation since. The retro-commissioning process should include a review of existing operational parameters for all installed equipment, such as AHU dampers, hot water valves, VAV units, and terminal air delivery grilles. During retro-commissioning, the individual loop temperatures for hot water and supply air should also be reviewed to identify opportunities for optimizing system performance. Installation cost: Estimated installed cost: $86,250 Source of cost estimate: Similar projects


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138-139

Retro-commissioning 86,250 0 86,250 22,804 4.4 2,316 0.4 1,820 9,034 13 93,779 9.5 36 3 5 8,606 58,337

Assumptions: Estimated costs for retro-commissioning range from $0.50-$2.00 per square foot. SWA assumed $0.75 per square foot for entire building. SWA also assumed on the average two (1/2) hrs/wk operational savings when systems are operating per design versus the need to make more frequent adjustments. Typical savings for retro-commissioning range from 5-20%, as a percentage of the total space conditioning consumption. SWA calculated the savings for this measure using measurements taken the on day of the field visit and using the billing analysis. SWA assumed 5% savings for both heating and cooling for both buildings. Rebates/financial incentives: There are no incentives available for this measure at this time from New Jersey Clean energy Program (NJCEP).



ECM#141-150: Replace inefficient Transformers Description: The recommended measure consists of disconnecting and removing the existing distribution transformers and installing new units compliant with Department of Energy’s (DOE) latest standard for high efficiency transformers, NEMA TP1. This is a voluntary industry standard for new commercial transformers. The design should include load calculations and sizing of the new system in order to achieve the best possible efficiency for this application. Installation cost: Estimated installed cost: $565,722 Source of cost estimate: RS Means Economics:

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140-149

TOTAL Transformer replacement

565,722 0 565,722 408,911 78.4 0 1.7 0 58,065 32 1,858,090 9.7 228 7 10 586,577 560,208


Assumptions: SWA calculated the savings for this measure using kWh savings based on an estimate of total kWh used per year. Power factor of 0.8 was used to convert kVA to kW ratings, and then a 20% use factor loading was assumed to calculate kWh used. The 20% factor is in keeping with numerous studies conducted by the DOE and Lawrence Berkeley laboratory (LBNL) for statistical transformer loadings. Savings are calculated based on the efficiency performance of a new, high efficiency model (TP1 compliant) sized to the existing capacity. Transformers identified for replacement Pitkin Replace 13200-460Y Transformer in Switchgear room, A018, 1000kVA Pitkin Replace 13200-460Y Transformer in Main electric room, basement, 3000kVA Pitkin Replace 13200-460Y Transformer in Main electric room, basement, 1500kVA Pitkin Replace 13200-460Y Transformer in Main electric room, basement, 2000kVA Ender Hall Replace old transformer at Ender hall, 500kVA estimate Ender Hall Replace old transformer at Ender hall, 500kVA estimate Ender Hall Replace old transformer at Ender hall, 500kVA estimate

Rebates/financial incentives: There are no incentives available for this measure at this time from New Jersey Clean energy Program (NJCEP).



PROPOSED FURTHER RECOMMENDATIONS Capital Improvements Capital Improvements are recommendations for the building that may not be cost-effective at the current time, but that could yield a significant long-term payback. These recommendations should typically be considered as part of a long-term capital improvement plan. Capital improvements should be considered if additional funds are made available, or if the installed costs can be shared with other improvements, such as major building renovations. SWA recommends the following capital improvements for Bergen Community College. • Replace electric baseboard and electric cabinet heaters – Parts of the building that were

added and modified in 1989 and not connected to the central plant were equipped with electric baseboards and cabinet heaters. Such areas include the three-story Library addition and Science section modification. Heating by electricity is much more expensive than by hot water supplied from gas-fired heaters; however, it will require significant plumbing and terminal equipment upgrades. SWA recommends that BCC be aware of this opportunity and carry out the change as part of capital improvement when possible.

• Review supply air quantities from central plant air handling units – the Library section (1972)

served by unit AC-1L, the Science section (1972) served by units AC-1SC, and AC-2SC, and the Business section served by unit AC-1BC, had existing large perimeter areas converted to internal areas as a result of building modifications and additions in 1989, 1996, and later in 2005. Consequently, the heating and cooling loads in these areas were reduced due to lower fenestration and transmission loads. The air handling units were equipped with variable frequency drives and set to deliver reduced air quantity. SWA recommends that BCC conduct a detailed load analysis for these areas by engaging a Professional Engineer to conduct a detailed testing and balancing of these systems.

• Upgrade Building Automation System (BAS) - The building contains a Trane Tracer Summit

Direct Digital Control (DDC) BAS system. The Tracer system controls the heating plant, chiller plant and terminal equipment at various buildings. Many control valves, sensors, and actuators throughout the building are reportedly pneumatic types. The BAS, including Building Control Units (BCUs), should be upgraded to the latest technology as part of capital improvement. In addition, the front end interface should be upgraded. The upgraded system, like a Trane Tracer Enterprise Server, would provide improved interface with remote control access and alarm monitoring via an internet connection. Based on the condition of the existing system, it is likely that the existing control wiring would need to be replaced. The Gymnasium, Cafeteria and Library spaces could be provided with CO2 sensors for demand control ventilation. The Chiller Plant and Cooling Tower Optimization algorithms would be incorporated into the functionality of the controls system, which are currently manually sequenced based on the outside air temperatures. This recommendation will ensure that the retro-commissioning estimated savings are maintained and reproducible. Generally, it may cost about $1000-$2000 per point for such retrofits, and SWA estimated over 2000 points that could be retrofit. The estimated budget for this is more than $2M, and therefore this is recommended as a capital improvement.

• Install combined heat, cool and power system (tri-generation) – Currently the building does

not have a cogeneration system which can produce electricity year round by using waste heat as a valuable resource. It is important to have a year round use for this system to be


economically viable. BCC campus does not have a high load requirement in the summer time (re-heat) when most air conditioning systems deliver cooling. The only heating requirement for the summer is for domestic hot water, which does not justify an investment in a large cogeneration system. A small cogeneration system (less than 100kW output) is not worth the effort for a large BCC campus, because it requires extensive approvals from various regulatory authorities, as well as an interconnection agreement with the utility which can turn out to be a big bottleneck. SWA recommends that BCC pursue a tri-generation system instead: the waste heat is absorbed by an absorber water chiller in the summer time, and is used for building heating in the winter. Waste heat is rejected outdoors only for the shoulder months. This system can still be able to achieve a 60% overall annual efficiency if it is properly designed and implemented. SWA recommends that BCC consider a natural, gas-fired 750kW induction generator (that can only operate with excitation from utility electric grid), coupled with a single stage hot water 300 ton absorption chiller. The ideal place for this unit would be where the 1972 electric chiller (which is no longer in use) is located. The estimated budget cost for this system is approximately $2.1M. SWA recommends that BCC pursue a CHP (trigeneration) feasibility study for the site.

• Install wireless sub-meters for electricity and gas – Currently, the whole BCC campus, which includes the Pitkin Building, Ender Hall, Technology Building, and West Hall is master metered for electricity and natural gas. BCC does not have the capability to monitor energy usage per building or per building section. SWA considered the installation of sub-meters for electricity and gas which can be read and monitored from the central building management system. The construction at the Pitkin Building happened over many years, and with each subsequent addition, new electric and gas lines were pulled from the main lines. It is difficult to estimate main electric and gas trunks serving any building section with certainty without conducting a detailed electric study. The electric and gas trunks for other buildings are better defined and benefit by installation of sub-meters, therefore SWA recommends sub-metering all buildings except for the Pitkin building at this time. SWA recommends that BCC install electric and gas sub-meters for the Ender Hall, the Technology Building, and the West Hall. This installation would require installing current transformers (CTs) with K-Y-Z pulse output capabilities. These pulses can be read from SCADA type data acquisition boxes and data sent over either telephone or internet lines that can be deciphered by the BAS. Estimated cost for sub-metering electric and gas at these buildings is approximately $20,000 based on past experience, and may require new software to be deployed at the BAS terminals. BCC should involve Trane BAS personnel prior to carrying out any such work.

• Replace air handling units – Units serving the library AC-1L, cafeteria AC-1U and 2U, science AC-1SC and 2 SC, business AC-1BC, and gymnasium AC-1G to 6G were installed in 1972 and have outlived their service lives. Considering the increased maintenance repair costs that these units will incur, SWA recommends replacement of this equipment. The existing equipment utilizes a supply fan, return fan, hot water coil, chilled water coil, and filters. The estimated installed cost of this equipment is difficult to quantify, as these are custom, field-built units and cannot be procured simple off the shelf. The energy savings alone do not justify this replacement, and so SWA recommends replacing these units on an as-needed basis as part of capital improvement.

• Replace rooftop package units – The following units AC-S-1, AC-S-2, AC-L-1 to 4, RT-1 to 3, AC-T-1 to 3 are all rooftop DX package units which have outlived their service lives. SWA recommends replacing these units with new, similar equipment, complete with premium


efficiency motors and enthalpy-controlled economizers. New units can be obtained with 15 SEER (seasonal energy efficiency ratio) as against the estimated 10-12 SEER of existing units. This measure cannot be justified based on the economics of replacement alone, and is therefore recommended as a capital improvement. The estimated cost of replacement is approximately $600,000.

• Replace exhaust fans – There are many “mushroom-type” roof exhaust fans which have outlived their services lives, and which should be replaced. SWA noted that many of these fans have already been replaced, and there were some new fans on the roof waiting to replace the old ones. SWA recommends replacing approximately 30 fans on roof at an estimated cost of $14,250. The energy savings alone do not justify this replacement, and this measured should be considered capital improvement.

• Install premium efficiency motors when new motors or replacements are required – Always select NEMA Premium motors when installing new motors or when replacing motors that have reached the end of their useful operating lives.

Operations and Maintenance Operations and Maintenance measures consist of low/no cost measures that are within the capability of the current building staff to handle. These measures typically require little investment, and they yield a short payback period. These measures may address equipment settings or staff operations that, when addressed will reduce energy consumption or costs. • Shut down kitchen hood fans during unoccupied hours – SWA recommends adjusting the

controls system to shut down the kitchen hood during unoccupied hours. When the kitchen hood is allowed to operate during unoccupied hours, expensive conditioned air is exhausted unnecessarily.

• Remove lab hood fan from above Science Classroom – Since this equipment is not in use, the presence of the fan is a possible point of heat loss in the building. If removing the fan and hood is not desirable, confirm the presence and integrity of a motor-operated damper and damper blade seals at the fan to minimize heat loss and infiltration.

• Confirm the operation of the intake and exhaust dampers on the air handling units. The intent

of the BAS is to close the dampers at night, but if the dampers are stuck in the open position, the result would be a loss of heating energy to the outdoors.

• Confirm the night setback temperature set-points for all HVAC equipment. The BAS should be

programmed to setback night time temperatures during unoccupied hours. Night time setback includes reducing the amount of necessary heat during the heating season and also reducing the amount of necessary cooling during the cooling season. If the night setback function is not operational with the current BAS system, or if the corresponding dampers or valves do not operate as intended, the result would be an excessive use of energy. Currently, the winter inside unoccupied mode temperature is maintained at 60 deg F; SWA estimated a reduction of 355 therms (savings of approximately $500) for each degree F reduction in this set-point.


• Reset temperature set-point for the Elevator Room in West Hall – SWA recommends resetting the indoor temperature for Elevator Room in West Hall, which was found to be over-cooled during our visit. This requires resetting the temperature through the BAS system located in the Pitkin Building.

• Inspect and replace gaskets around doors for walk-in refrigerator and for walk-in freezers.

Ineffective gaskets allow infiltration of warm air into the walk-in box, which increases the run-time of the compressors.

• Check water levels in the expansion tanks, and check the integrity of the tank bladder, to

confirm proper operation.

• Use Energy Star labeled appliances - such as Energy Star refrigerators, vending machines and computers. These appliances should replace older, energy-inefficient equipment.

• Provide easy access to all mechanical equipment – Several of the buildings had clutter,

including extra student desks, tables and boxes stored in the mechanical room. These items make it difficult to access mechanical equipment, and can also become a hazard when placed close to combustion appliances such as boilers. When mechanical equipment is hard to access, performance of routine maintenance may be affected.

• Maintain roofs - SWA recommends regular maintenance to verify rainwater is draining correctly. Regular inspections should be conducted to ensure that roof drains are not clogged, causing water pooling. The Technology Education Center was observed to have standing water due to several roof drains being clogged.

• Maintain downspouts - Repair/install missing downspouts as needed to prevent water or

moisture infiltration and insulation damage. • Provide weather-stripping/air-sealing - Doors and vestibules should be observed annually for

deficient weather-stripping and replaced as needed. The perimeter of all window frames should also be inspected regularly, and any missing or deteriorated caulking should be re-caulked to provide an unbroken seal around the window frames. Any other accessible gaps or penetrations in the thermal envelope penetrations should also be sealed with caulk or spray foam.

• Repair/seal wall cracks and penetrations - SWA recommends, as part of the maintenance

program, installing proper flashing, correct masonry efflorescence, and sealing wall cracks and penetrations wherever necessary in order prevent damage from excess moisture or air infiltration.

• Provide water-efficient fixture aerators and sensors – Verify and Install 0.5gpm aerators and

motion sensors on all water faucet fixtures throughout the school. Installing lower GPM aerators on all lavatory faucets is a cost-effective way to reduce domestic hot water demand and save water. Routine maintenance practices that identify and quickly address water leaks are a low-cost way to save water and energy. Retrofitting with more efficient water-consumption fixtures and appliances will save energy through reduced energy consumption for water heating, while also decreasing water/sewer bills


• Use smart power electric strips - in conjunction with occupancy sensors to power down computer equipment when left unattended for extended periods of time.

• Create an energy educational program - that teaches how to minimize energy use. The U.S.

Department of Energy offers free information for hosting energy efficiency educational programs and plans. For more information please visit: http://www1.eere.energy.gov/education/

http://www1.eere.energy.gov/education/�


APPENDIX A: EQUIPMENT LIST

Pitkin Education Center

Building System Description Physical

Location Make/ Model Fuel Space served Year

Equip Installed

Estimated Remaining

useful life %

HVAC

R-1A, 14200cfm, 1"

SP, 5 hp motor; not used anymore

Loading Dock

Mechanical Room, A-021

Trane, Model M-B, S/N KOTI86347 Elec.

Pitkin; Admin: Return air to

AC-1A 1972 0%

HVAC AC-2A -

4400cfm, 3.25" SP, 5 hp motor

Loading Dock


Nameplate N/A Elec.

Pitkin; Admin: Telephone equipment

room

1972 0%

HVAC

HV-1A, 15000/7500 CFM, dual

speed, 2.25"SP, 10 hp

motor - not used anymore

Loading Dock


Trane Torrivent, Model T-35, S/N KOT186143 Elec. Pitkin; Admin:

Tunnel supply 1972 0%

Ventilation

E-1A, 20000/10600cfm, dual speed, 1.25", 7.5 hp

motor- enclosed within a sheet metal

casing

Loading Dock


Nameplate N/A Elec. Pitkin; Admin: Loading dock

exhaust 1972 0%

Ventilation E-2A, 4000cfm, 1/20 hp motor

Loading Dock


Nameplate N/A Elec.

Pitkin; Admin: Emergency generator exhaust

1972 0%

Ventilation Exhaust fan,

est. 1/2hp motor, 1 nos.

Roof above Admin

SwartOut, Nameplate N/A Elec. Pitkin; Admin 1972 0%



Roof above Admin

SwartOut, Nameplate N/A Elec. Pitkin; Admin 1972 0%


est. 1/3hp motor

Roof above Admin

Dayton, Model 2RB64, S/N 1125 8540 0803 Elec. Pitkin; Admin 2008 90%


est. 1/3hp motor

Roof above Admin

Dayton, Model 2RB64, S/N 1125 3539 0803 Elec. Pitkin; Admin 2008 90%

Ventilation Exhaust fans as follows:

1 hp - 2 nos.

Roof above Admin

Penn, Model as follows: 4HX95A

Elec. Pitkin; Admin 2005 est. 75%

Ventilation

Exhaust fan, 1/3hp est. roof

mounted mushroom type

Roof above Admin

Greenheck, model SB-140-3-M, S/N

97221022 Elec.

Pitkin; Business section

2006 80%

Cooling

Condensing unit, 5 tons, 460/3/60,

MCA14, R-22

Roof above Student Center

Trane, Model TTA060D400A0, S/N

P2630FBFF Elec. Pitkin;

Cafeteria 2000 33%


HVAC

AC-S-1,17000cfm, 15hp supply

fan, 10hp return fan, fresh air

2550 CFM, DX cooling, gas

heating (312/250 MBH

in/out)


McQuay, Model RPS051BA, S/N

3VK00043 19

Gas/Elec.

Pitkin; Admin: Addition of

Student center 1989 0%

HVAC

AC-S-2,20000cfm, 20hp supply fan, 7.5hp

return fan, fresh air 6000 CFM,

DX cooling, gas heating

(312/250 MBH in/out); electric

reheat (5+15)kW



3VK00066 19

Gas/Elec.

Pitkin; Admin: 1st floor gut renovation

1989 0%

HVAC

Roof top package unit,

DX, R-22, 15tons, est.

6000cfm,, gas heating,

350/284 MBH in/out


Trane, Model YCH180, S/N not available

Gas/Elec.

Pitkin; Cafeteria Make

up air 2001 est. 40%

HVAC

Roof top package unit,

DX, R-22, 15tons, est.

6000cfm,, gas heating,

350/284 MBH in/out


Trane, Model YCH180, S/N not available

Gas/Elec.

Pitkin; Cafeteria Make

up air 2001 est. 40%

HVAC

RTU-2A, 2000cfm, 100% fresh air, 3hp

fan motor, 460/3/60, DX cooling R22, gas heating

(180/146 MBH in/out); c/w enthalpy

economizer and heat

recovery wheel

Roof over Administratio

n

Aaon, Model RM-007-3-0-AA91-339, S/N

200409-AMGG11381

Gas/Elec.

Pitkin; Admin: 2nd floor fresh air and exhaust

2001 40%

HVAC

RTU-2B, 2000cfm, 100% fresh air, 3hp



economizer and heat

recovery wheel


n


200409-AMGG11382

Gas/Elec.

Pitkin; Admin: 2nd floor fresh air and exhaust

2001 40%


HVAC

RTU-3A, 6400cfm, 100% fresh air, 7.5hp



economizer and heat

recovery wheel


n

Aaon, Model RM-020-3-0-AB92-379, S/N

200409-AMGP11405

Gas/Elec.

Pitkin; Admin: 3rd floor fresh

air and exhaust 2001 40%

HVAC

RTU-3B, 3200cfm, 100% fresh air, 3hp

fan motor,460/3/60,

DX cooling R22, gas heating


economizer and heat

recovery wheel


n


200409-AMGH11350

Gas/Elec.

Pitkin; Admin: 3rd floor fresh

air and exhaust 2001 40%

HVAC

AC-1L, 111500cfm,

7"SP, 200 hp motor; hot and cold decks, c/w

VFD

Main Mechanical

room, basement

Nameplate N/A - it is field built up and

original Elec.

Pitkin; Library: Basement

corridor outside B&G office, library 1st to

3rd floors

1972 0%

HVAC

R-1L, 48000cfm,

2.5"SP, 30 hp motor, c/w VFD

Main Mechanical

room, basement

Nameplate N/A Elec.

Pitkin; Library: Return air from Library to the

unit

1972 0%

HVAC

R-2L, 48000cfm,

2.5"SP, 30 hp motor; not used

anymore

Main Mechanical

room, basement

Nameplate N/A Elec.

Pitkin; Library: Return air from Library to the

unit

1972 0%

HVAC

AC-L-1,19000cfm, 20hp supply


3000 CFM, DX cooling R22, gas heating

(250/200 MBH in/out) - burner model 020TA

Roof above Library (1989)


3VK00385 19 Elec.

Pitkin; Library: addition to 1st

floor 1989 0%

HVAC




(250/200 MBH in/out)- burner model 020TA



3VK00042 19 Elec.

Pitkin; Library: addition to 2nd and 3rd floor

1989 0%




Nameplate N/A Elec. Pitkin; Library (1972) 1972 0%





Nameplate N/A Elec. Pitkin; Library (1972) 1972 0%




SwartOut, Nameplate N/A Elec. Pitkin; Library

(1972) 1972 0%

Ventilation Exhaust fans as follows:

3/4 hp - 2 nos.


Penn, Model as follows: 4HX87A

Elec. Pitkin; Library (1972) 2005 75%

Ventilation

E-1L, and E-2L; Exhaust fans,

4200 CFM approx., 1 hp est., 2 nos.


Penn, Model as follows: 4HX89A Elec. Pitkin; Library

(1972) toilets 2005 75%

Cooling

Condensing unit, R-22,

115/1/60, MCA 20, 1 ton est.


Sanyo, Model CL1211, S/N 0013661 Elec. Pitkin; Library

(1972) 2001 est. 40%

Cooling


208/1/60, MCA 30, 2 ton est.


Sanyo, Model C2422, S/N 0056153 Elec. Pitkin; Library

(1972) 2004 est. 60%

Cooling


208/1/60, MCA 15.5, 2 ton est.


Friedrich, Model MR24C3C, S/N

LKEH00060 Elec. Pitkin; Library

(1972) 2007 80%

Cooling

Condensing unit, R22, 208/1/60,

MCA18, 2.5 ton est.


Mitsubishi, Model PU30EK3, S/N

07U004834 Elec. Pitkin; Library

(1972) 2004 est. 60%

Cooling


208/1/60, MCA 30, 2 ton est.



(1972) 2004 est. 60%

Cooling


208/1/60, MCA 10.7, 1.5 ton est. - 4 nos.


Carrier, Model 38KD018C300, S/N

N/A Elec. Pitkin; Library

(1972) 2001 est. 40%

Cooling

Condensing unit, R410A,

208/1/60, MCA26, 3.5 ton

est.


Mitsubishi, Model PUY-A42NHA, S/N

S7000286 Elec. Pitkin; Library

(1972) 2004 est. 67%

Cooling


115/1/60, MCA16, 1 ton

est.


Mitsubishi, Model MU-A12WA, S/N 6001699 Elec. Pitkin; Library

(1972) 2004 est. 67%

Cooling


208/1/60, MCA18, 2 ton

est.


Mitsubishi, Model PUY-A24NHA, S/N 51000319B

Elec. Pitkin; Library (1972) 2004 est. 67%

Cooling


208/1/60, MCA26, 3.5 ton

est.


Mitsubishi, Model PUY-A42NHA, S/N 66U00026C

Elec. Pitkin; Library (1972) 2004 est. 67%


Cooling


208/1/60, MCA 30, 2 ton est., 4 nos. all same


Sanyo, Model SAP243C, S/N

0083683 Elec. Pitkin; Library

(1972) 2001 est. 40%

Cooling


200/1/60, MCA 23, 3.5 tons


Trane, Model XE1200, TWP042C100A4, S/N

R49KHR2F Elec. Pitkin; Library

(1989) 2001 40%

Cooling


115/1/60, MCA 30



(1989) 2001 est. 40%

Cooling


115/1/60, 44W fan motor, 1 ton

est.


Mitsubishi, Model MU-A12WA, S/N 6001604 Elec. Pitkin; Library

(1989) 2004 est. 67%

HVAC

AC-1U, 27000cfm,

7"SP, 50 hp motor, original;

hot and cold decks

Main Mechanical room, 1st

floor

Trane, Climate Changer, Model H-41,

S/N K0J188340 Elec.

Pitkin; Coll. Ctr: Basement maint. shops, part 1st floor

coll ctr.

1972 0%

HVAC

R-1U, 20000cfm,

2.5"SP, 15 hp motor


floor

Nameplate N/A Elec.

Pitkin; Coll. Ctr: Return air from AC-1U

areas

1972 0%

HVAC

AC-2U, 38,500cfm,

3.75"SP, 50 hp motor; hot and cold decks - motor looks

new, c/w VFD


floor

Trane, Climate Changer, Model MZ-63, S/N K01186348

Elec.

Pitkin; Coll. Ctr: Part 1st floor and 2nd floor cafeteria

1972 0%

HVAC

R-2U, 24150cfm,

2.5"SP, 15 hp motor


floor

Nameplate N/A Elec.

Pitkin; Coll. Ctr: Return air from AC-2U

areas

1972 0%

HVAC

AC-3U, 2500cfm,

0.5"SP, 0.5 hp motor - split

unit

1st floor, room C10 Nameplate N/A Pitkin; C10 1972 0%

Ventilation

E-1U, Motor 25hp, 91.7%

NEMA high eff., est. 2 years old, 21000cfm@4"S

P

Mechanical Penthouse,

College center

Clarage Fan Co., Nameplate N/A, Elec. Pitkin; Kitchen

hood - main 1972 0%

Ventilation

E-3U, 2400cfm@2"SP, motor est.

2hp


College center

Nameplate N/A Elec. Pitkin;

Secondary hood

2004 est. 70%

Ventilation

E-4U, [email protected]"SP, motor est.

3 hp


College center

Clarage Fan Co., Size 60-MS, S/N 4645-CA Elec. Pitkin; General

exhaust 1972 0%

Ventilation

E-5U, 5000cfm@1"SP, motor est.

1hp


College center

Clarage Fan Co., Size 54-MS, S/N 4646-CA Elec.

Pitkin; Dishwash exhaust

1972 0%


Cooling

Condensing unit, R-22, 208/1/60,

MCA19.6, 3 ton

Roof above College center

EMI, Model SHC36DEC000AA0A, S/N 1-97-C-9527-11

Elec. Pitkin; College center 1998 20%

Cooling


208/1/60, MCA 20, 1.5 tons

est.; SEER 20


Sanyo, Model CL1872, S/N 0090184 Elec. Pitkin; College

center 2009 93%

Cooling


208/1/60, MCA 20, 1.5 tons

est.; SEER 20


Sanyo, Model CL1872, S/N 0090084 Elec. Pitkin; College

center 2009 93%

Ventilation

Exhaust fans, 3 nos., approx. 1/6hp motor

each

Roof above college center

Jenn Fan, Model JEB1204 Elec. Pitkin; College

center 1996 est. 30%

HVAC

RT-1,15000cfm, 10hp motor,

460/60/3 fresh air 3400cfm,

DX cooling R-22, gas heating (500/400 MBH

in/out), c/w VFD


McQuay, Model RPS040ClA, S/N

37C01263 00

Gas/Elec.

Pitkin; Coll. Ctr: 3rd floor

addition 1996 7%

HVAC


fresh air 3000cfm, DX cooling, gas


in/out), c/w VFD


McQuay, Model RPS036CLA, S/N

37C01264 00

Gas/Elec.


addition 1996 7%

HVAC


fresh air 3400cfm, DX cooling, gas


in/out), c/w VFD


McQuay, Model RPS045CSA, S/N

37C01265 02

Gas/Elec.


addition 1996 7%

Heating

Hot water boiler,

1500/1200 MBH in/out,

80% eff rated; Burner GP-700-1, S/N G91909-

1

3d floor, College

center, C307

Cleaver Brooks, Model FLX 700, S/N BT-5583 Gas


addition 1996 44%

Heating

Circulating hot water pumps, 120 gpm@30'

head, 460/3/60, Baldor motor, 2

hp

3d floor, College

center, C307 Nameplate N/A Elec.


addition 1996 30%


Cooling

Evaporator 1 for walk in

freezer, 208/1/60, qty of

4 - 1/20hp motors, 3.5kW defrost heaters

Walk-in-freezer,

basement

Trenton, Model TLP422LE-S2A, S/N

060201016 Elec. Pitkin; Walk-in-

freezer N/A 15%

Cooling

City water cooled

condensing unit for walk in

freezer, R22, 208/3/60,23.1M

CA

Basement, above walk in freezer

Trenton, Model TESA035L6-HT3A-F,

S/N 06017998 Elec. Pitkin; Walk-in-

freezer N/A 15%

Cooling

Evaporator 2 for walk in

freezer, 208/1/60, qty of

4 - 1/15hp motors, 3kW

defrost heaters

Walk-in-freezer,

basement

Bohn, Model LET2402F, S/N

DSJ02597 Elec. Pitkin; Walk-in-

freezer N/A 15%

Cooling

City water cooled

condensing unit for walk in

freezer, R22, 208/3/60,49MC

A

Basement, above walk in freezer

Bohn, Model DSW6L2HD01, S/N

DSE00153 Elec. Pitkin; Walk-in-

freezer N/A 15%

Ventilation

Exhaust fan, est. 2hp motor, 460/60/3, 9.3A

- 3 nos.

Roof above Old Science

(1967)

Swartout, FiberAire, Model 633-FWB Elec. Pitkin; Science

section (1967) 1972 0%

Ventilation

Exhaust fans as follows:

1/4 hp - 7 nos. 1/2 hp - 5 nos.

1 hp - 1 no. 3/4 hp - 1 no.

Roof above Old Science

(1967)

Penn, Model as follows: 4HX83A 4HX85A 4HX89A 4MH84

Elec. Pitkin; Science section (1967)

Less than 5 years

old 75%



Roof above Science (1989)

Loren Cook, Model ACRU Elec. Pitkin; Science

section (1989) 1989 est. 0%


est. 1/6hp motor


Dayton, Model 4YY16, S/N 11089268 0710 Elec. Pitkin; Science

section (1989) 2005 est. 75%

Cooling


208/1/60, MCA30, 3 tons

est.


Mitsubishi, Model PUY-A36NHA, S/N 62UO3463B

Elec. Pitkin; Science section (1989) 2007 est. 80%

Cooling


MCA16, 2 tons est., 10 SEER


Dayton, Model MAKA-024JAZ, S/N 5882

M1900 16404 Elec. Pitkin; Science

section (1989) 2001 40%

Cooling


MCA15, 1 tons est.


Sanyo, Model C1211, S/N 0069934 Elec. Pitkin; Science

section (1989) 2007 est. 80%


Renewable

PV module, 600V AC/DC, 10A input, 85 Amp output, connected to

power a computer


Ascension Technology, PVSCP Elec.

Pitkin; Student research

project - not used

N/A N/A

HVAC

AC-1SC, 75000cfm,

7.5"SP, 125 hp motor; hot and cold decks, c/w

VFD

Main Mechanical

room, basement

Field built up unit, original, no name plate Elec.

Pitkin; Science: North section 1st to

3rd floors

1972 0%

HVAC

R-1SC, 75000cfm, 3"SP, 50hp

motor, 460/3/60, 84

Amps - original motor, c/w VFD


floor

Joy, Model 60-26.5-1750, S/N SF-27155 Elec.

Pitkin; Science:

Return air from North section

1972 0%

HVAC

AC-2SC, 41500cfm,

7.5"SP, 75 hp motor; hot and cold decks, c/w

VFD

Main Mechanical

room, basement


Pitkin; Science: East section 1st to

3rd floors

1972 0%

HVAC

R-2SC, 30500cfm,



floor

Nameplate N/A Elec.

Pitkin; Science:

Return air from East section

1972 0%

HVAC

AC-1M, 14,000cfm,

2.5"SP, 15 hp motor; not used

anymore


floor

Trane, Climate Changer, Model O-25,

S/N K01186341 Elec.

Pitkin; Mechanical

Room 1972 0%

HVAC







3VK00040 19

Gas/Elec.

Pitkin; Science:

Addition on 2nd floor in 1989

1989 0%

HVAC







3VK00041 19

Gas/Elec.

Pitkin; Science:

Addition on 3rd floor in 1989

1989 0%

Heating

Electric water heater for dental lab,

6kW, 480/3/60, 50 gallon rated

capacity

Dental lab mech. room

AO Smith, Model DEL 50 110, S/N

0906M001075 Elec. Pitkin; Dental

lab 2004 est. 67%


HVAC

AC-1BC, 62280cfm,

6.75"SP, 125 hp motor; hot

and cold decks, c/w VFD

Mechanical room

Business building


Pitkin; Business:

designed for 1st to 3rd

floors, however only 1st floor

now

1972 0%

HVAC

R-1BC, 49,800cfm,


Mechanical room

Business building

Nameplate N/A Elec.

Pitkin; Business:

designed for return air from

1st to 3rd floors, however only 1st floor

now

1972 0%

Ventilation

E-1BC exhaust fan, 2800cfm,

0.625"SP, 3/4hp, 115/1/60

Roof above business section

Loren Cook, model 180CPV, S/N 214 590

6401-00/000701 Elec.


2006 80%

Ventilation

E-2BC exhaust fan, 1000cfm,

0.625"SP, 1/3hp, 115/1/60


Loren Cook, model 135CPV, S/N 214 590

6401-00/0002601 Elec.


2006 80%

Ventilation

Exhaust fan, 1/3hp est. roof

mounted mushroom type


Greenheck, model GB-240-7, S/N 9712115 Elec.


2006 80%

Ventilation

Supply air louver with

gravity operated

barometric dampers - to

spill out excess air


Loren Cook, Model SPECIAL TRE

36x96x10 TR, S/N 2145879787-00/0000702

None Pitkin;

Business section

2006 80%

Ventilation

Supply air louver with

gravity operated

barometric dampers - to

spill out excess air


Loren Cook, Model SPECIAL TRE

36x96x10 TR, S/N 2145879787-00/0000701

None Pitkin;

Business section

2006 80%

HVAC

RTU-1, 35 tons, 14100cfm,

2.5"SP, 15 hp evap. motor,


(350/283 in/out MBH)


Trane, Model YCD420.., S/N

C06B00993

Gas/Elec.

Pitkin; Business: 3rd

floor, renovated in 2005

2006 73%

HVAC






Trane, Model YCD420.., S/N

C06B00992

Gas/Elec.

Pitkin; Business: 3rd


2006 73%

HVAC




(400/324 in/out


Trane, Model YCD600..., S/N

C06B00994

Gas/Elec.

Pitkin; Business: 2nd


2006 73%


MBH)

HVAC

RTU, 15 ton est., 6000cfm est., 460/60/3;


350/284 in/out MBH


Trane, Model YFH180B4HBEA, S/N

P28101777D

Gas/Elec.

Pitkin; Business

section make up air

1999 27%

Cooling


MCA16, 2 tons est.


Central Environmental System, Model HAMC-

F024SA, S/N eeom 167580

Elec. Pitkin;

Business section

2005 est. 67%

Cooling


208/1/60, MCA18, 2 tons

est.


Mitsubishi, Model PUY-A24NHA2, S/N

720002592 Elec.


2007 est. 80%

Cooling

Condensing unit, R22,

208/1/60, 2 tons est.


Unitary Products Group, Model

AC024M1021A, S/N WHLM018974

Elec. Pitkin;

Business section

2006 est. 73%

Ventilation Exhaust fans, 3

nos., 1 hp motor est.


Penn, Model 4HX89A Elec. Pitkin;

Business section

2006 est. 80%

Ventilation Exhaust fans, 1/4 hp motor

est.


Penn, Model 4HX83A Elec. Pitkin;

Business section

2006 est. 80%

Heating

Hot water boiler,

1000/850 MBH in/out, 85% rated eff.

3rd floor, Business,

B328

Paterson Kelly, Modu-Fire, Model SNM-1000 Gas

Pitkin; 2nd and 3rd floor Business section

2006 69%

Heating

Hot water pumps, size

1510, 98gpm@60'hea

d, Marathon motor, 5hp, 460/3/60, 87.5% eff.

3rd floor, Business,

B328

ITT Bell & Gossett, Size 1510, no.

C015280-01 B60 Elec.

Pitkin; 2nd and 3rd floor Business section

2006 80%

HVAC

AC-1G, 7000cfm,

3.5"SP, 10 hp motor original

Gymnasium mechanical

room Nameplate N/A Elec.

Pitkin; Gymnasium

Lobby 1972 0%

HVAC

AC-2G, 11650cfm,

3.5"SP, 15 hp motor, new

Dayton, high eff.


room

Trane, Climate Changer, Model M-63,

S/N KOJ180313 Elec.

Pitkin; Gymnasium Lockers Left

1972 0%

HVAC

AC-3G, 11740cfm,

3.5"SP, 15 hp motor, original


room


S/N KOJ180344 Elec.

Pitkin; Gymnasium

Lockers Right 1972 0%


HVAC

AC-4G, 30000cfm,

3.75"SP, 30 hp motor original;

c/w VFD


room


S/N KOJ186349 Elec.

Pitkin; Gymnasium

Left 1972 0%

HVAC

AC-5G, 5540cfm,

3.5"SP, 7.5 hp motor


room Nameplate N/A Elec.

Pitkin; Gymnasium

Offices 1972 0%

HVAC

AC-6G, 30500cfm,

3.75"SP, 30 hp motor original;

c/w VFD


room


S/N KOJ185350 Elec.

Pitkin; Gymnasium

Right 1972 0%

Ventilation

E-5G, [email protected]"SP, motor est.

2 hp

Roof above Gymnasium

Swartout, Nameplate N/A Elec.

Pitkin; Gymnasium

Left 1972 0%

Ventilation

E-6G, [email protected]

5"SP, motor est. 3 hp



Pitkin; Gymnasium -

women's lockers

1972 0%

Ventilation

E-7G, [email protected]

5"SP, motor est. 3 hp



Pitkin; Gymnasium - men's lockers

1972 0%

Ventilation

E-8G, [email protected]"SP, motor est.

2 hp



Pitkin; Gymnasium

Right 1972 0%

HVAC R-1N, 5600cfm,

1"SP, 1.5 hp motor

Pool 1st floor, Room

N107

Trane Utility fans, nameplate N/A Elec. Pitkin; Pool,

AC-1N 1972 0%

HVAC R-2N, 8600

CFM, 1" SP, 3 hp motor

Pool 1st floor, Room

N107

Trane Utility fans, nameplate N/A Elec. Pitkin; Pool,

AC-2N 1972 0%

Heating

Pool heating pump,

460/3/60, 300gpm

approx. Motor installed 5 years ago

Pool mechanical

room Paco Elec. Pitkin; Pool 2005 70%

Heating

Pool heating pump,

460/3/60, 300gpm

approx. Motor installed 5 years ago

Pool mechanical

room Paco Elec. Pitkin; Pool 2005 70%

Cooling

Pool service chiller, MCA 32,

460/3/60, 2*10HP comp motors, R-22, 20 tons, water

cooled

Pool mechanical

room

Trane, Model CGWD0204CGOHA71

01FFOG, S/N 094K04558

Elec. Pitkin; Pool

Not yet installed; 10 years

old

57%

HVAC

AC-1N, 9690cfm,

3.5"SP, 15 hp motor est.

Pool mechanical

room

McQuay, Model LSL122CH, S/N 36H01136-04

Elec. Pitkin; Pool 2000 30%


HVAC

AC-2, Dehumidifying pool heater,

MCA 88, 460/3/60,

10,600 cfm@1"WG,

DX, R-22, est. 15 hp motor

Pool mechanical

room

Dumont Refrigeration Corp., Zephyr, Model

DP-4800, S/N DP48BC10T1SA00V

Elec. Pitkin; Pool 2000 0%

Heating

Pool water heater,

399MBH in, min 78% eff.

Pool mechanical

room

Lochinvar, Model EPN402, S/N

D08H00010187 Gas Pitkin; Pool

water 1999 est. 56%

Heating

Pool water heater, 985/797 MBH in/out, cw 1/2 hp ITT B&G water circulator

Pool mechanical

room

Lochinvar, Model CBN0985, S/N

K007686 Gas Pitkin; Pool

building HVAC 1999 est. 56%

Heating

Pool water pump, Baldor

motor, VJNN3313T,

10hp, 1715rpm, 460/3/60

Pool mechanical

room

Paco pump, Model 10-30955230062-17, S/N

XA G94929A Elec. Pitkin; Pool

water

Motor replaced 5 years ago

20%

Heating

Pool water pump, 375

gpm@60' head, Paco motor,

10hp, 460/3/60

Pool mechanical

room

Paco pump, Model 10-30955230062-17, S/N

XA G94929B Elec. Pitkin; Pool

water

Motor replaced 5 years ago

20%

Cooling


MCA41, 5 tons

Low roof above theater


F060SB, S/N EMBM311082

Elec. Pitkin; Theater 2005 est. 67%

Cooling


MCA41, 5 tons



F060SB, S/N EMBM203725

Elec. Pitkin; Theater 2005 est. 67%


est. 1/4hp motor


Loren Cook, Model 120026 Elec. Pitkin; Theater 1980 est. 0%


est. 1/6hp motor


Loren Cook, Nameplate N/A Elec. Pitkin; Theater 1980 est. 0%

HVAC

AC-T-1, 17950/8975 CFM, dual

speed, 15hp supply fan, 7.5hp return

fan, 460/60/3, fresh air 3590

CFM, DX cooling R22, no

heating;


McQuay, Model RPS 060BY, S/N 3VK00384

19

Gas/Elec.

Pitkin; Theater: Auditorium,

lobby 1989 0%


HVAC

AC-T-2, 13485/6745 CFM, dual

speed, 7.5hp supply fan, 5hp

return fan, 460/3/60, fresh air 2030 CFM,

DX cooling R22, no heating;



19

Gas/Elec.

Pitkin; Theater: Stage 1989 0%

HVAC

AC-T-3, 4200 CFM, 5hp supply fan,

460/3/60, fresh air 630/2100

CFM, DX cooling R22, gas heating

(250/200 MBH in/out);



19

Gas/Elec.

Pitkin; Workshop 1989 0%

Cooling

AC-T-4A, DX type outdoor condensing

unit, 460/3/60, MCA 56, est.

21 tons

Outdoor, on grade

Trane, RAUCC254, S/N C07K10975 Elec.

Pitkin; Converted

space 2008 90%

Cooling

AC-T-4B, DX type indoor unit, 6700 CFM, 1340 CFM OA

Room C106C

McQuay, Model LSL114DH, S/N

3VJ0060-04 Elec.

Pitkin; Converted

space 2001 40%

Ventilation

EF-T-4, 2700cfm, est. 1/3hp, exhaust

fan, for converted

space relief,

Room C106C Nameplate N/A Elec.

Pitkin; Converted

space 1989 0%

Heating

Electric water heater, 54KW, 65Amps, 460V,

400 gallons tank

Room C106b Hubbell, Model H400-548LT4, S/N 43435 Elec. Pitkin; Theater

restrooms 1989 est. 0%

HVAC

Package unit, installed

indoors in Maintenance department,

208/1/60, MCA21.5, 2.5

tons, est. 1000cfm

Maintenance shop in

basement

International Comfort Products, Model

PAF030K000E, S/N G034751400

Elec.

Pitkin; Maintenance

shop, basement

2006 est. 73%

Heating

Electric water heater for

DHW, 54kW, 480/3/60

Maintenance shop in

basement

Rheem Rudd, Model ES85-54-G, S/N

BR08970397E00171 Elec.

Pitkin; Maintenance

shop, basement

2005 67%

Cooling

Pump, P-1M, Chilled water, 60hp motor,

460/3/60, 885rpm, new

motor installed in 2007-2008,

no VFD - operated about

16 wks/yr.

Main Mechanical

room, basement

Worthington, size 6 LR 18, Brook motor, model

40FT, high eff. Elec.

Pitkin; Chilled water for 500

tons chiller only

1972; motor is

less than 3 years old

0%


Cooling

Pump, P-2M, Chilled water,

2300 gpm @250' original, 175hp motor, 460/3/60, old

original motor; this is not used

anymore

Main Mechanical

room, basement

Worthington, size 6 LR 18, Motor Model C-120B-00-170, S/N C

1006252

Elec. Pitkin; Chilled water 1972; NIU 0%

Cooling

Pump, P-3M, Chilled water, 25hp motor,

460/3/60, new motor, high eff. 88..5% - this is backup only, and run from emergency generator

Main Mechanical

room, basement

Worthington, size 6 LR 18, Motor Marathon,

Model VC326T Elec. Pitkin; Chilled

water

1972; motor is


0%

Heating

Pump, P-4M, Hot water,

125hp motor per dwg, 1200rpm,

1800gpm@198', used 50% of time in winter (other 50% is

P-15)

Main Mechanical

room, basement

Worthington, size 6 LR 18 Elec. Pitkin; Hot

water 1972 0%

Heating

Pump, P-5M, Hot water,

125hp motor per dwg,

1800gpm@200' head - not used

anymore

Main Mechanical

room, basement

Worthington, size 6 LR 18 Elec. Pitkin; Hot

water 1972; NIU 0%

Heating

Pump, P-6M, 25hp motor,

460/3/60, new motor, high eff.

88..5%, c/w VFD- this is backup only, and run from emergency generator

Main Mechanical

room, basement

Worthington, size 6 LR 18, Motor Marathon,

Model 6B326T Elec. Pitkin; Hot

water

1972, motor is about 8

years old

0%

Cooling

Pump, P-7M, Condenser

water, 100hp motor OLD, 460/3/60,

2650gpm@100' - not used anymore

Main Mechanical

room, basement

Worthington, size 8 LR 13 Elec.

Pitkin; Condenser

water 1972; NIU 0%

Cooling

Pump, P-8M, Condenser water, 60hp motor OLD, Uniclosed,

460/3/60, 1150 rpm - operated

approx. 16wks/year

Main Mechanical

room, basement

Worthington, size 8 LR 13 Elec.

Pitkin; Condenser

water for 500 tons chiller

1972 0%


Cooling

Pump, P-9M, Condenser water, 25hp

motor, 460/3/60, new motor, high eff. 88..5%- this is backup only, and run from emergency generator

Main Mechanical

room, basement

Worthington, size 8 LR 13 Motor Marathon,

Model 6B326T Elec.

Pitkin; Condenser

water

1972; motor is


0%

Cooling

Pump P-12, Chilled water,

AO Smith motor, 1991 installed, std eff., 30hp,

885rpm,c/w with VFD

Main Mechanical

room, basement

AO Smith motor, Model AT03004, S/N 1030626 Elec.

Pitkin; Chilled water for 300

and/or 800 tons chiller

1989; motor 1991

0%

Cooling

Pump P-13, Chilled water

return, Lincoln motor, 175hp, 92% eff. - not used anymore

Main Mechanical

room, basement

Lincoln motor, S/N 369335 Elec. Pitkin; Chilled

water 1989 0%

Heating

Pump P-14, Hot water,

Lincoln motor, 125hp, 92% eff. - OLD MOTOR

- not used anymore

Main Mechanical

room, basement

Lincoln motor, S/N 3803405 Elec. Pitkin; Hot

water 1972 0%

Heating

Pump P-15, Hot water,

Lincoln motor, 40hp, 92% eff. - OLD MOTOR;

1200 rpm; used 50% of time in winter (other 50% is P-4M)

Main Mechanical

room, basement

Lincoln motor, S/N 3803406 Elec. Pitkin; Hot

water 1972 0%

Cooling

Pump P-16, CW supply,

2660gpm@100' head, Lincoln 30 hp motor, 1200 rpm; no

VFD, and 90% eff.

Main Mechanical

room, basement

Weinman, Model 8L2, S/N 17474T2 Elec.

Pitkin; Condenser


1989; motor is

more than 10 years

old

0%

Cooling

Pump P-17, 30 hp motor,

approx 2001, 1160 rpm; this

is sparingly used - meant

as back up only to P-16; no

VFD

Main Mechanical

room, basement

Flektrin, S/N OK59494S Elec.

Pitkin; Condenser


1989; motor is about 10 years old

0%

Heating

Pump, Hot water, Size

1510, 856gpm@29'he

ad, 10hp, 1800rpm, prem efficiency, no

VFD

Main Mechanical

room, basement

ITT Bell&Gossett, Model 58c, S/N

2069704 Elec. Pitkin; Hot

water 1996 30%


Heating

Pump, Hot water, Size

1510, 856gpm@29'he

ad, 10hp, 1800rpm, prem efficiency, no

VFD

Main Mechanical

room, basement

ITT Bell&Gossett, Model 58c, S/N

2069703 Elec. Pitkin; Hot

water 1996 30%

Cooling

Pump, chilled water,

720gpm@43'head, 10hp, 1800rpm,

premium eff., no VFD

Main Mechanical

room, basement

ITT Bell&Gossett, Model 43C, S/N

2069633 Elec. Pitkin; Chilled

water 1996 30%

Cooling

Pump, chilled water,

720gpm@43'head, 10hp, 1800rpm,


Main Mechanical

room, basement


2069632 Elec. Pitkin; Chilled

water 1996 30%

Cooling

Pump, condenser

water, 860gpm@45'he

ad, 15hp, 1800rpm,


Main Mechanical

room, basement


2069709 Elec.

Pitkin; Condenser

water 1996 30%

Cooling

Pump, condenser

water, 860gpm@45'he

ad, 15hp, 1800rpm,


Main Mechanical

room, basement


2069708 Elec.

Pitkin; Condenser

water 1996 30%

Cooling

Chiller, R-11, 460/3/60,MCA 1146, 890 Nom

Tons

Main Mechanical

room, basement

Trane, Model CVHE890, S/N

L91F64330 Elec. Pitkin; Whole

building 1992 22%

Cooling

Chiller, R-123, 460/3/60,MCA 468, 259KW,

500 Nom Tons

Main Mechanical

room, basement

Trane, Model CVHE500, S/N

L97M07845 Elec. Pitkin; Whole

building 2000 57%

Cooling

Chiller, R-11, 115/1/60,17

Amps, 800 tons - this is not

used anymore

Main Mechanical

room, basement

Trane, Centravac CV-SC-S-G7H7, S/N

LOK13030 Elec. Pitkin; Whole

building 1972 0%

Cooling

Chiller, R-123, 460/3/60,MCA 361, 199KW,

320 Nom Tons

Main Mechanical

room, basement

Trane, CVHE320, S/N L97G04750 Elec. Pitkin; Whole

building 1996 39%

Cooling Cooling tower,

3 cell, 30hp motor, on VFD

Outside, on steel frame

Evapco, Model SST 12-936B3, S/N 994422 Elec. Pitkin; Chiller

plant 2005 75%

DHW

DHW, Boiler 1A, input rating

300MBH, 120/1/60, 82%

eff.

Main Mechanical

room, basement

Lochinvar, Copper Fin, Model CFN401, S/N

8003044 Gas Pitkin; Whole

building 2007 88%


DHW

DHW, Boiler 1B, input rating

300MBH, 120/1/60, 82% eff., backup to 1A - though

both are used

Main Mechanical

room, basement

Lochinvar, Model CFN401PM, S/N H07H00200900

Gas Pitkin; Whole building 2007 88%

Heating

Boiler #2, 1,795/1,453

(IN/OUT) MBH, 80% eff., 120/1/60,

connected to 20,000gallon storage bullet

Main Mechanical

room, basement


8992908 Gas

Pitkin; Admin area heating, Modine units

1999 56%

Heating

Boiler #3, 1,795/1,453

(IN/OUT) MBH, 80% eff., 120/1/60

Main Mechanical

room, basement


8992909 Gas Pitkin; Building

heating 1999 56%

Heating

Boiler #4, 2,085/1,672

(IN/OUT) MBH, 120/1/60; back up to boiler#3 - both are shared used, 80% eff

Main Mechanical

room, basement


0003580 Gas Pitkin; Building

heating 2000 60%

Heating

Boiler #5, 745/603

(IN/OUT) MBH, 120/1/60, 78%

eff.

Main Mechanical

room, basement

Lochinvar, Model CBN0745, S/N l007904 Gas

Pitkin; Cafeteria pre-

heating 1994 36%

Heating

Boiler #6, 745/603

(IN/OUT) MBH, 120/1/60; this is used as a back up to #5, and

used only if the temp. is extreme

Main Mechanical

room, basement

Lochinvar, Model CBN0745, S/N l0079 Gas

Pitkin; Cafeteria pre-

heating 1994 36%

Heating

Boiler #7, 1300/1105

(IN/OUT) MBH, 120//60, est.

86% eff. - high efficiency

Main Mechanical

room, basement

Lochinvar, Model PBN1300, S/N E05H00176290

Gas Pitkin;

Preheating AC-1L, library unit

2005 80%

Controls

Air Compressors, Baldor 7.5hp motor, less

than 1 yr old - high eff.

Main Mechanical Room, 1st

floor

Honeywell, Model WP-230, S/N 4110-3-

7329372, and 9362 respectively

Elec. Pitkin; Whole building 2005 80%

Electric

Emergency generator,

diesel, 45kW, 120/208 3

Phase, Ford engine

Elev. Mech room, A022, in the tunnel

Onan, Model SEM-4R8/8846A, S/N 0712

73006 Elec.

Pitkin; Emergency

loads like lights etc.

1989 est. 0%

Electric

Transformer, Voltage rating 13200-460Y,

1000kVA

Switchgear room A018, in the tunnel

General Electric, G-858573 Elec.

Pitkin; Gymnasium,

Pool 1972 0%


Electric


diesel, 45kW, 120/208 3

Phase, Ford engine

Gymnasium Electrical

room

Onan, Model 45EM-4R8/8846A, S/N 0171

274412 Elec.

Pitkin; Emergency

loads 1989 est. 0%

Electric

Dry Type Transformer,

Class AA, Voltage rating 13200-60 KV,

1000kVA

Gymnasium Electrical

room

Olsun Electrics Corporation, Model CMV1000LO-4No.

A62365 126131

Elec. Pitkin;

Emergency loads

2005 84%

Electric


diesel, 85kW, 120/208 3

Phase, Cummins

engine

Main Electrical

room, basement

Onan, Model 85KW-4R8/54011, S/N 0171

274900 Elec.

Pitkin; Emergency

loads 1989 est. 0%

Electric


diesel, 400kW, 277/480 3

Phase, Cummins

engine

Main Electrical

room, basement

Onan, Model 400DFV-4XR8/8857C, S/N

0371272371 Elec.

Pitkin; Emergency

loads 1989 est. 0%

Electric


diesel, 115kW, 277/480 3

Phase, Cummins

engine

Main Electrical

room, basement

Kohler, Model 115RZ278, S/N

276720 Elec.

Pitkin; Emergency

loads 1989 est. 0%

Electric

Transformer, Voltage rating 13200-460Y, 3000kVA, est.

94.01% eff.

Main Electrical

room, basement

General Electric, G-858572 Elec. Pitkin building 1972 0%

Electric


94.05% eff.

Main Electrical

room, basement

General Electric, R-277326 Elec. Pitkin building 1972 0%

Electric


94.04% eff.

Main Electrical

room, basement

General Electric, G-858571 Elec. Pitkin building 1972 0%


West Hall


Location Make/ Model Fuel Space served Date Installed

Estimated Remaining

useful life %

Heating

B-1; RBI heating boiler,

Natural gas, atmospheric,

1,160,000 BTUH input,

939,600 BTUH

output, 82% thermal

efficiency, 178F supply

temp

W131; Mechanical

Room

RBI, 8900 Series, Model #HB1160, Serial

#080539649

Natural Gas All areas 2007 88%

Heating

B-2; RBI heating boiler,

Natural gas, atmospheric,

1,160,000 BTUH input,

939,600 BTUH

output, 82% thermal

efficiency, 178F supply

temp

W131; Mechanical

Room

RBI, 8900 Series, Model #HB1160, Serial

#080539650


Heating

P-1; Heating Hot Water

supply pump, Marathon Electric

motor, 3HP, 1730 RPM,

84% efficiency,

Type TDR, 3 PH, 60 Hz,

controlled by VFD motor,

pressure gauge shows

corrosion

W131; Mechanical

Room

Marathon Electric, Model #DVB

182TTDR5337AA P, Cat #M361

Electric All areas 2007 70%

Heating

P-2; Heating Hot Water

supply pump, Marathon Electric

motor, 3HP, 1730 RPM,

84% efficiency,

Type TDR, 3 PH, 60 Hz,

controlled by VFD motor

W131; Mechanical

Room

Marathon Electric, Model #DVB

182TTDR5337AA, Cat #M361


Heating

VFD-1; Yaskawa Variable

Frequency Drive, at time of audit was

W131; Mechanical

Room

Yaskawa, Varispeed E7, Model #CIMR-E7U42P2, Spec

#42P21B



reading 53.17 Hz

Heating

VFD-2; Yaskawa Variable

Frequency Drive, at time of audit was

reading 56.31 Hz

W131; Mechanical

Room

Yaskawa, Varispeed E7, Model #CIMR-E7U42P2, Spec

#42P21B


Heating

UH-1; Trane hot water

unit heater, 1760 CFM,

97,100 BTUH

output, 200F max output

temp., served by

separate hot water loop from main

boiler supply

W131; Mechanical

Room

Trane, Model #UHSA126S8EAA1T0

0000CF, Serial #F06E36409

Electric/ Hot

Water Loop

W131; Mechanical

Room 2007 88%

Heating

UH-2; Trane hot water

unit heater, 1760 CFM,

97,100 BTUH

output, 200F max output

temp., model info taken

from drawings

Storage Room 132

Trane, Model #UHSA020S, Serial

#NA

Electric/ Hot

Water Loop

Storage Room 132 2007 88%

Heating

CUH-1; Trane

cabinet unit heater, 15.9

MBH capacity,

model info taken from drawings

Lounge 109 Trane, Model

#FFEB0201, Serial #NA

Electric/ Hot

Water Loop

Lounge 109 2007 88%

Heating

CUH-2; Trane

cabinet unit heater, 15.9

MBH capacity,

model info taken from drawings

Stair-2 117 Trane, Model

#FFEB0201, Serial #NA

Electric/ Hot

Water Loop

Stair-2 117 2007 88%

Heating

ECH-1; QMARK electric heater,

recessed, 13,700

BTUH, 4 kW, 283 CFM, model info taken from

drawing

Vestibule - 102A

QMARK, Model #CDF-547, Serial #NA Electric Vestibule -

102A 2007 88%


Heating

ECH-2; QMARK electric heater,

recessed, 13,700

BTUH, 4 kW, 283 CFM, model info taken from

drawing

Vestibule - 202A

QMARK, Model #CDF-547, Serial #NA Electric Vestibule -

202A 2007 88%

Heating

EWH-1; QMARK electric heater, surface, 13,650

BTUH, 4 kW, model info taken from

drawing

Stair 1 - 104 QMARK, Model #AWH4407, Serial #NA Electric Stair 1 - 104 2007 88%

Heating/Cooling

RTU-1; Trane

rooftop unit, 27,000 CFM,

410 MBH output, 81%

thermal efficiency, 80 tons cooling

capacity, 15.3 EER, R-

22, MFR date 7/2006

Rooftop

Trane, Model #SFHFC754L777C9BD9011A0CE0G00L0NRT

078600H, Serial #C06D03382

Natural Gas/

Electric

Partial 2nd and 3rd floors 2007 88%

Heating/Cooling

RTU-2; Trane

rooftop unit, 7,000 CFM, 203 MBH

output, 81% thermal

efficiency, 20 tons cooling

capacity, 10.7 EER, R-

22, MFR date 7/2006

Rooftop

Trane, Voyager, Model #YCH211C4LOCA,

Serial #628100937D, 250,000 BTUH heat input, 203,000 BTUH heat output, nominal

efficiency 81.2%

Natural Gas/

Electric Stair-2 2007 88%

Cooling

ACCU-1; Trane Air Cooled

Condensing unit, EER

11.5, R-22, 28,200 CFM,

MFR date 2006

Rooftop

Trane, Model #RAUCC404BY13ABD

000010, Serial #C06D03269

Electric AHU-1 2007 88%

Cooling

ACCU-2; Trane Air Cooled

Condensing unit, EER

10.9, R-22, 49,600 CFM,

MFR date 2006

Rooftop

Trane, Model #RAUCC804BP102BD

00105, Serial #C06D03270

Electric AHU-2 2007 88%

Cooling

ACR-1; Sanyo

condensing unit, Split type air

Rooftop Sanyo, inverter, Model

#CL1271, Serial #0030362

Electric MDF - 130 2007 88%


conditioner, R-410A

refrigerant, MFR date 04/2006, EER 10.3

Cooling

ACR-2; Sanyo


conditioner, R-410A



#CL1271, Serial #0030562

Electric IDF - 227 2007 88%

Cooling

ACR-3; Sanyo


conditioner, R-410A



#CL1271, Serial #0031862

Electric IDF - 327 2007 88%

Cooling

ACR-4; Sanyo


conditioner, R-410A


Rooftop

Sanyo, Sanyo PAC DC inverter, Model

#C3672R, Serial #0047062

Electric W309A; Electrical Room 2007 88%

Cooling

ACR-5; Sanyo


conditioner, R-410A



#CL1872, Serial #001732

Electric UPS Room 2007 88%

Cooling

ACR-6; Sanyo


conditioner, R-410A


Rooftop

Sanyo, Sanyo PAC DC inverter, Model

#C3672R, Serial #0048162

Electric Dimmer Room - 125 2007 88%

Cooling

Sanyo evaporator unit, Split type air

conditioner, R-410A

refrigerant, matching

outdoor unit

W309A; Electrical

Room

Sanyo, Model #KH3672R, Serial

#0007561 Electric W309A;

Electrical Room 2007 88%


CH3672R/C3672R, Unit has been

shut off since area it cools is electrical room and

unnecessary

Ventilation

AHU-1; Trane air

handling unit contains

VFD controls on supply and return

side, 15,000 CFM, with

hot water coil

W131; Mechanical

Room

Trane, M-series Climate Changer,

Model #MCCB030UA0D0UB,

Serial #K06D49882

Electric/ Hot

Water Loop

First Floor 2007 88%

Ventilation

AHU-2; Trane air

handling unit, 24,700 CFM,

410 MBH output, 81%

thermal efficiency,

gas-fired unit

Rooftop

Trane, Model #RAUCC804BP102BD

00105, Serial #C06D03270

Natural Gas

Partial 2nd and 3rd floors 2007 88%

Ventilation

VFD for AHU-1; Trane

Variable Frequency

Drive controls return air

flow for AHU-1

W131; Mechanical

Room

Trane, TR1 series, Model #NA, Serial #NA Electric AHU-1 2007 88%

Ventilation

EF-1; Loren Cook

exhaust fan, 1/2 HP, 1640 Design CFM, 0.375 Design

SP, 1550 RPM, 1 PH, 60 Hz, 115V,

MFR date 4/2006

Rooftop

Loren Cook, Model #135 ACRU, Serial

#2145883584-01/0000701

Electric Nat. Media Lab 326 2007 70%

Ventilation

EF-2; Penn ceiling

mounted exhaust fan, 300 CFM, model info taken from drawings

1st-Floor Penn, Model #Z8H, Serial #NA Electric

Elevator Machine Room

- 129 2007 70%

Ventilation

SEF-1; Loren Cook Smoke Exhaust fan,

30 HP, 62,500

Design CFM, 1725 RPM, 460V, 3 PH,

60 Hz, Design SP 1.0, MFR

date 4/2006

Rooftop

Loren Cook, Model #660 CAS, Serial

#2145883584-00/0000701



Ventilation

SEF-2; Loren Cook Smoke Exhaust fan,

30 HP, 62,500

Design CFM, 1725 RPM, 460V, 3 PH,


date 4/2006

Rooftop

Loren Cook, Model #660 CAS, Serial

#2145883584-00/0000702


Ventilation

TEF-1; Loren Cook Toilet Exhaust fan, 1/2 HP, 1465 Design CFM, 1550 RPM, 115V, 1 PH,


date 4/2006

Rooftop

Loren Cook, Model #135 ACE, Serial

#214S883584-01/0002001

Electric Toilets

105,106,205,206,305,306

2007 70%

Ventilation

TEF-2; Loren Cook Toilet Exhaust fan, 1/2 HP, 1160 Design CFM,

rest of nameplate blocked by antenna, MFR date

4/2006

Rooftop

Loren Cook, Model #135 ACE, Serial

#214S883584-01/0003301

Electric Toilets

217,218,321,322

2007 70%

Ventilation

TEF-3; Penn, 75 CFM,

direct drive, ceiling

mounted, model info taken from drawings

1st-Floor Penn, Model #ZT, Serial #NA Electric Toilet 127A 2007 70%

Ventilation

TEF-4; Penn, 75 CFM,

direct drive, ceiling

mounted, model info taken from drawings

3rd-Floor Penn, Model #ZT, Serial #NA Electric Toilet 326C 2007 70%

Ventilation

PEF-1; Thybar power

exhaust fan, mounted

next to RFU-2, 1/2 HP,

1725 RPM, 3 PH, 60 Hz, MFR date 4/25/2006

Rooftop Thybar, Thycurb,

Model #TPE 3400-3, Serial #NA

Electric RTU-2 2007 70%

Distribution System

Sterling hydronic

baseboard with copper elements, 1"

tube size, 680

BTUH/LF, model info

First Floor, Stair 2

Sterling, Model #VB-AR-PM, Serial #NA

Hot Water Loop

Stair-2 2007 88%


taken from drawings

Distribution System

Sterling hydronic


tube size, 680

BTUH/LF, model info taken from drawings

First Floor, Vestibule

102A


Hot Water Loop

Vestibule 102A 2007 88%

Distribution System

Sterling hydronic


tube size, 680


First Floor, Stair 1


Hot Water Loop

Stair-1 2007 88%

Distribution System

Sterling hydronic


tube size, 680


Second Floor,

Vestibule 202A


Hot Water Loop

Vestibule 202A 2007 88%

Domestic Hot Water

DHW-1; AO Smith

Preferred, direct vent, 100 gallons

capacity, 150,000

BTUH input, 95% thermal

efficiency, 170.90

gal/hr, MFR date

5/18/2006, Water

Temperature setpoint was 122F, gas-fired sealed combustion

W131; Mechanical

Room

AO Smith Preferred, Cyclone X-tra high

efficiency (XHE), Model #BTH 150 970, Serial

#E06M006962


Electric Transformers

ETR; GE electric

transformer, Nema class AA dry type transformer, 30.0 kVA, 60

Hz, 3 PH, 5.4%

impedance, Type QL

W31; Mechanical

Room

GE, Catalog #9T23Q9872, Serial

#NA Electric All areas 2007 90%



TR-1; GE transformer, Nema AA dry

type transformer, 150.0 kVA,

60 HZ, 3 PH, 4.8%

impedance, Type QL, MFR date

2/2006

W309A; Electrical

Room

GE, Catalog #9T23Q9876, Serial

#Q 107863 Electric All areas 2007 90%


TR-1G; GE transformer,

K-factor TransforMor

e, Nema Class AFA

dry type transformer, 300 kVA, 60 HZ, 3 PH,

3.5% Impedance

W309A; Electrical

Room

GE, K-factor TransforMore, Catalog

#9T36G0008G53, Serial #K 184711


Elevators

E-1; Imperial hydraulic

elevator, 30 HP AC motor

W131; Mechanical

Room

Imperial, Model #NA, Serial #NA Electric All areas 2007 90%

Elevators

E-2; Imperial hydraulic

elevator, 30 HP AC motor

W131; Mechanical

Room

Imperial, Model #NA, Serial #NA Electric All areas 2007 90%

Power System

UPS; Mitsubishi

Uninterruptible Power System

W129A; UPS Room

Mitsubishi, UPS series, Model #2033D, Serial

#NA Electric All areas 2007 90%

Lighting See Details Appendix A - - - - 2007 -


Ender Hall


Location Make/ Model Fuel Space served

Year Equip

Installed

Estimated Remaining useful life

%

DHW

DHW: Hot water heater, 125MBH input,

84% eff. Rated, 75 gallon tank

Corner of Elec. Room

Rheem Rudd, Model G75-125, S/N

URNG0207G00347 Gas

Whole building-

Ender hall 2007 77%

DHW

DHW: Hot water heater, 154MBH input,

80% est. Rated, 75 gallon tank

Mechanical room E-173

AO Smith, Model BT 155 880, S/N MF90-

0172627-880 Gas

Whole building-

Ender hall 2002 38%

HVAC

RTU-D, 5 tons, 2000cfm est., 1 hp

evap. motor, 208/3/60, DX cooling, gas

heating (60/48 in/out MBH)

Ender Hall roof

Trane, Model YHC060.., S/N 926102273L

Gas/Elec. Ender hall,

room 111,113, 115

2009 93%

HVAC

HVAC-3, 17 tons, 5 hp evap. motor, 208/3/60, DX cooling R-22, gas


Ender Hall roof

Trane, Model BYC200G3HOBC, S/N S26144180D

Gas/Elec. Ender hall, room 114 1986 0%

HVAC

RTU-E, 5 tons, 2000cfm est., 1 hp



Ender Hall roof



room 110,112

2009 93%

HVAC

HVAC-2, 17 tons, 7.5 hp evap. motor,

208/3/60, DX cooling R-22, gas heating


Ender Hall roof

Trane, Model BYC200G3HOBC, S/N S26144191D


HVAC



Ender Hall roof

Trane, Model BYC130G3HOBC, S/N nameplate N/A

Gas/Elec. Ender hall, theater 1986 0%

HVAC

HVAC-19, RTU-MZ-1, MCA210, R410A DX Cooling, gas heating, 600/480 MBH in/out, 10hp blower, est. 24

tons, 10000cfm, 3000cfm OA

Ender Hall roof

Mammoth, Model ZP-154, S/N 303744-

01-01 Gas/Elec. Ender hall,

lobby 2009 93%

Ventilation Exhaust fan, EF-1, 1.5hp, 208/1/60, 4400cfm@1"SP

Ender Hall roof

Loren Cook, Model 245U8B, S/N

214S5889 2400007010300

Elec. Ender hall, kitchen 2000 50%


Ender Hall roof


214S5889 24000018010300



Ender Hall roof


214S5889 24000018020300


Ventilation Exhaust fan, EF-4, 1/8hp, 115/1/60,

200cfm

Ender Hall roof

Loren Cook, Model 90C15DM, S/N

214S5889 24000029010300


Ventilation Supply fan, SF-1, 0.75hp, 208/1/60,

[email protected]"SP

Ender Hall roof

Loren Cook, Model 150ASP-T, S/N

214S5889 24000040010300


Ventilation Supply fan, SF-2, Ender Hall Loren Cook, Model Elec. Ender hall, 2000 50%


0.75hp, 208/1/60, [email protected]"SP

roof 150ASP-T, S/N 214S5889

24000051010300

kitchen

Ventilation Supply fan, SF-3, 0.75hp, 208/1/60,

[email protected]"SP

Ender Hall roof

Loren Cook, Model 150ASP-T, S/N

214S5889 24000051020300


HVAC

HVAC-15, 11 tons, 3 hp evap. motor,



Ender Hall roof

Trane, Model BYC130G3HOAA, S/N Y32143873D


HVAC

AC-1, 17 tons, 7.5 hp evap. motor, 208/3/60,

DX cooling, gas heating (350/284 in/out

MBH)

Ender Hall roof

Trane, Model YCD210C3HCBB, S/N R10101067D


room 195,197,199

2000 33%

HVAC



Ender Hall roof

Trane, Model BYC060F3HOBA, S/N S241143893D


HVAC

HVAC-18, 11 tons est., 3 hp evap. motor,



Ender Hall roof

Trane, Model SPOB-0106-HB, S/N 083M-

04585 Gas/Elec. Ender hall,

room 187 1986 0%

HVAC

RTU-17, 5 tons, 2000cfm est., 1 hp



Ender Hall roof



HVAC

RTU-E, 5 tons, 2000cfm est., 1 hp



Ender Hall roof


Gas/Elec. Ender hall 2009 93%

HVAC

HVAC-14, 12.5 tons, 50000cfm est., 5 hp



Ender Hall roof

Trane, Model YCD151E3HKAA, S/N 927100039D


HVAC




Ender Hall roof

Trane, Model BYC130G3HOAA, S/N Y32143304D


HVAC

HVAC-12, 8.5 tons, 3 hp evap. motor,



Ender Hall roof

Trane, Model BYC100G3HOBB,

S/N SL1614A Gas/Elec. Ender hall,

room 157 1986 0%

HVAC




Ender Hall roof

Trane, Model BYC130G3HOAA, S/N S161442930


HVAC




Ender Hall roof

Trane, Model BYC130G3HOAA, S/N S15144125D


HVAC



Ender Hall roof




HVAC

RTU, 10 tons, 5 hp evap. motor, 208/3/60,

DX cooling, gas heating (250/200 in/out

MBH)

Ender Hall roof

Trane, Model YCD120..., S/N

524102020L Gas/Elec. Ender hall 2000 33%

HVAC



Ender Hall roof



HVAC



Ender Hall roof



HVAC

HVAC-5, 8.5 tons, 3 hp evap. motor, 208/3/60, DX cooling R-22, gas


Ender Hall roof

Trane, Model BYC100G3HOBB, S/N SL16144567D


HVAC

HVAC-4, 8.5 tons, 3 hp evap. motor, 208/3/60, DX cooling R-22, gas


Ender Hall roof

Trane, Model BYC100G3HOBB, S/N SL16144573D



Technology Education Building


Location Make/ Model Fuel Space served Date Installed

Estimated Remaining

useful life %

Heating/ Cooling

RTU-2C; Trane Voyager rooftop unit, forced air

furnace with cooling unit, 600,000 BTUH

heating input, 486,000 BTUH

heating output, 81% thermal efficiency,

35 tons cooling capacity, EER 10.3,

15 HP premium efficiency supply fan motor with factory

installed VFD, R-22

Rooftop, Upper Roof

Trane, Voyager, Model

#YCD420A4HH2B7GH4AB0D0F0HJ0

000, Serial #C01J61670

Natural Gas/

Electric

Main section of building 2002 68%

Heating/ Cooling

RTU-1D; Trane Voyager rooftop unit, forced air






installed

Rooftop, Upper Roof



000, Serial #C01J61668

Natural Gas/

Electric


Heating/ Cooling

RTU-1C; Trane Voyager rooftop unit, forced air






installed

Rooftop, Upper Roof



000, Serial #C01J61671

Natural Gas/

Electric


Heating/ Cooling

RTU-2B; Trane Voyager rooftop unit, forced air






installed

Rooftop, Upper Roof



000, Serial #C01J61669

Natural Gas/

Electric


Heating/ Cooling

RTU-2A; Trane Voyager rooftop unit, forced air

furnace with cooling

Rooftop, Upper Roof


#YCD151C4HGAA, Serial

Natural Gas/

Electric

Main section of building, near front entrance

2002 68%


unit, 5,000 CFM, 11.3 SEER 250,000 BTUH heating input,

203,000 BTUH heating output, 81% thermal efficiency,

15 tons cooling capacity, EER 11.8

#Z42101300D

Heating/ Cooling

RTU-1E; Trane Voyager rooftop unit, forced air






installed

Rooftop, Upper Roof



000, Serial #C01J616**

Natural Gas/

Electric

South Section of building 2002 68%

Cooling

AC-1; Liebert condenser for split system AC, R-22,

14,100 BTUH cooling capacity,

with 3.6 kW electric reheat, no model

info on unit, model info taken from

drawings, connected to inside unit, Liebert, Model

#MMD12E

Rooftop, Upper Roof

Liebert, Model #PFC014A, Serial

#NA Electric MDF 117B 2002 68%

Cooling

AC-2; Liebert condenser for split system AC, R-22,

14,100 BTUH cooling capacity,

with 3.6 kW electric reheat, no model

info on unit, model info taken from

drawings, connected to inside unit, Liebert, Model

#MMD12E

Rooftop, Upper Roof

Liebert, Model #PFC014A, Serial

#NA Electric Cont. 117B 2002 68%

Heating/ Cooling

RTU-1B; Trane Voyager rooftop unit, forced air






installed VFD, R-22

Rooftop, Lower Roof

(Larger)


#YCD480A4HH2B7MH4AB0D0F0J00

00, Serial #C01J61672

Natural Gas/

Electric

North Section of building 2002 68%

Heating/ Cooling

RTU-1A; Trane Voyager rooftop unit, forced air


heating input,

Rooftop, Lower Roof

(Larger)


#YCH181CHFBA, Serial #Z411018**

Natural Gas/

Electric

North Section of building 2002 68%


284,000 BTUH heating output, 81% thermal efficiency,

40 tons cooling capacity, EER

10.3/11.5 SEER, 6,000 CFM, 15 HP premium efficiency supply fan motor

with factory installed, model info taken from drawings

Heating

B-1; Weil-McLain boiler, 2 sections,

sealed combustion, forced draft,

1,560,000 BTUH input, 1,099,000

BTUH output, 81% thermal efficiency, with Weil-McLain

burner controls WFF P-2 control system

Mechanical Room, First

Floor

Weil-McLain boiler, Series #2, Model #LGB 13W/SN

Natural Gas All Areas 2002 68%

Heating

P-1; Heating hot water circulation

pump motor, Baldor, 3PH, 60 Hz, 1725 RPM, 1.5 HP with Siemens controls,

80% efficiency


Floor

Baldor, Catalog #JMM3154T, Spec.

#35K360-37Z Electric All Areas 2002 20%

Heating

P-2; Heating hot water circulation

pump motor, Baldor, 3PH, 60 Hz, 1725 RPM, 1.5 HP with Siemens controls,

this is the lead pump, 80% efficiency


Floor

Baldor, Catalog #JMM3154T, Spec.

#35K360-37Z Electric All Areas 2002 20%

Heating

UH-1; Vulcan hot water unit heater,

480 CFM, 22.7 MBH heating input,

nameplate info taken from drawings


Floor

Vulcan, Model HV-35, Serial #NA

Electric/ Hot

Water Loop

Mechanical Room 125 2002 68%

Heating

UH-2; Vulcan hot water unit heater,

480 CFM, 22.7 MBH heating input,

nameplate info taken from drawings


Floor

Vulcan, Model HV-35, Serial #NA

Electric/ Hot

Water Loop

Mechanical Room 125 2002 68%

Heating

CUH-1,2; Vulcan cabinet unit heater, 7.0 MBH heating input, nameplate info taken from

drawings

Stair 1, Stair 2

Vulcan, Model #SRG-A 624,

Serial #NA

Electric/ Hot

Water Loop

Stairwells 2002 68%

Heating

CUH-3; Vulcan cabinet unit heater, 2.8 MBH heating input, nameplate info taken from

drawings

Vestibule near South Entrance

Vulcan, Model #W-A 626

Hot Water Loop

Vestibule near South Entrance 2002 68%

Ventilation

EF-1; Carnes Power ventilator exhaust

fan, 1 PH, 115V, 60 Hz, .5 HP, 400 CFM

Rooftop, Lower Roof

(Larger)

Carnes, Model #VEBK

08L1A1UA20SPC?, Serial

#356271.001

Electric Bathrooms 2002 20%

Ventilation EF-2; Carnes Power ventilator exhaust

Rooftop, Lower Roof

Carnes, Model #VEBK15P1A1UA2 Electric Bathrooms 2002 20%


fan, 1 PH, 115V, 60 Hz, .5 HP, 2,000

CFM

(Larger) 0SPC?, Serial #356271.003

Ventilation

EF-3; Carnes Power ventilator exhaust fan, 3PH, 60 Hz,

208V, 1.5 HP, 6,600 CFM

Rooftop, Lower Roof

(Larger)

Carnes, Model #VUBK30T1G1UA

20SPCA, Serial #356271.005

Electric Simulated

Manufacturing Lab

2002 20%

Ventilation

EF-4; Greenheck, .5 HP, 1 PH, 115V, 60

Hz, 1,200 CFM, model info taken from drawings

Rooftop Greenheck, Model

#CUBE-140HP, Serial #NA

Electric Kitchen Hood 2002 20%

Ventilation

EF-5; Greenheck condensate hood, .25 HP, 115V, 60

Hz, 500 CFM, model info taken from drawings

Rooftop Greenheck, Model #GB-80-4, Serial

#NA Electric Condensate

Hood 2002 20%

Controls

Trane Tracer Summit, universal

programmable control module, BMS module, connected to

computers in Pitkin


Floor

Trane, Tracer Summer, Model #NA, Serial #NA

Electric All Areas 2002 73%

Transformer

GE transformer (smaller of two transformers),

NEMA class AA dry type, 112.5 kVA, 60

Hz, 3PH, 4.4% Impedance


Floor

GE, Catalog #9T23Q3575,

Serial #K 151844 Electric All Areas 2002 73%

Transformer

GE transformer (larger of two transformers),

NEMA class AA dry type, 225.0 kVA, 60

Hz, 3PH, 2.7% Impedance, Type

QL


Floor

GE, K Factor, Catalog

#9T23B3478G13, Serial #K 152026


Domestic Hot Water

AO Smith hot water storage tank,

custom, 119 gallon storage capacity, supply temp. at

120F


Floor

AO Smith, Model #TJV 120A000, Serial #LL01-1286140-000

Hot Water Coil

Pantry 2002 20%

Domestic Hot Water

Bell & Gossett, domestic hot water circulation pump,

214W


Floor

Bell & Gossett, Model #PL-36B, Serial #1BL003

Electric Pantry 2009 20%

Domestic Hot Water

DHW-3: AO Smith, domestic hot water heater attached to

AO Smith 119 gallon storage tank,

atmospheric, minimal storage, 300,000 BTUH input, 247,200 BTUH output, 82.4% thermal

efficiency


Floor

AO Smith, Model #HW 300 932,

Serial #932 K 01 65519

Natural Gas Pantry 2002 20%

Domestic Hot Water

DHW-1; AO Smith, Master-fit domestic hot water heater,

atmospheric, 199,000 BTUH input, 193 gal/hr recovery, 100


Floor

AO Smith, Master-fit, Model #BTR 200 110, Serial

#MH01-1127007-110



gallons of storage capacity

Domestic Hot Water

DHW-2; AO Smith, Master-fit domestic hot water heater,

atmospheric, 199,000 BTUH input, 193 gal/hr recovery, 100

gallons of storage capacity


Floor

AO Smith, Master-fit, Model #BTR 200 110, Serial

#MH01-1127005-110


Domestic Hot Water

Bell & Gossett, domestic hot water circulation pump,

214W


Floor

Bell & Gossett, Model #PL-36B, Serial #1BL003


Lighting See details appendix A - - - - - -


Ciarco Learning Center


Location Make/ Model Fuel Space served

Year Equi

p Installed

Estimated Remaining

useful life %

Electric DC Generator for elevators, 10kw

output, 160V, 63A

Ciarco, Elevator machine

room

OTIS, 180247, type 7 CA Elec. Ciarco - whole

building 1998 52%

Electric DC Motor for

elevators, 20hp, 160V, 63A


room

OTIS, 1801177, type 89R Elec. Ciarco - whole

building 1998 52%

Electric AC Motor, 15hp,208/3/60 OTIS, 1602461,

type 74-ES Elec. Ciarco - whole building 1998 52%

Electric DC Generator for elevators, 10kw

output, 160V, 63A


room

OTIS, 180246, type 7 CA Elec. Ciarco - whole

building 1998 52%

Electric DC Motor for

elevators, 20hp, 160V, 63A


room

OTIS, 160916, type 89R Elec. Ciarco - whole

building 1998 52%

Electric AC Motor, 15hp,208/3/60 OTIS, 180244, type

74-ES Elec. Ciarco - whole building 1998 52%

HVAC

RT-1,17500cfm, 20hp supply fan, 3hp return fan, fresh air

4000 CFM, DX cooling R22, gas heating 500/400

MBH in/out)- burner model 050AAC,

rated for 625MBH max.

Roof - Ciarco McQuay, Model

RPS060CSA, S/N 39D00212 02

Gas/Elec. Ciarco 2nd floor 1998 20%

HVAC






RPS060CSA, S/N 39D00213 02

Gas/Elec. Ciarco 2nd floor 1998 20%

HVAC






RPS060CSA, S/N 39D00214 02

Gas/Elec. Ciarco 1st floor 1998 20%

HVAC






RPS060CSA, S/N 39D00215 02

Gas/Elec. Ciarco 1st floor 1998 20%

Ventilation EF-1, Exhaust fan, 115/1/60, 1/4hp, Roof - Ciarco Carnes, Model

VEBK 18L Elec. Restrooms 1998 40%


2000 CFM 1A1NA20APCX, S/N 457495.001

Heating

Hot water boiler, 1467/1203 MBH in/out, 120/1/60, 80% eff. - 2 nos.

Boiler room, basement

Raypak, B6000 Boiler Monitor,

other details N/A Gas Ciarco building 1998 52%

Heating

Hot water pumps, 240gpm@30'head, Baldor motor, 3 hp -

2 nos. (one is standby)

Boiler room, basement

Paco pumps, Model VI3007E2UAB689D Elec. Ciarco building 1998 40%

Heating

Hot water unit heaters, total of 8 in the basement, fhp motor, 120/1/60

Basement McQuay, 16-27MBH Elec. Basement 1998 40%


Appendix B: Lighting Study


APPENDIX C: THIRD PARTY ENERGY SUPPLIERS http://www.state.nj.us/bpu/commercial/shopping.html

http://www.state.nj.us/bpu/commercial/shopping.html�


APPENDIX D: GLOSSARY AND METHOD OF CALCULATIONS

Glossary of ECM Terms . Net ECM Cost: The net ECM cost is the cost experienced by the customer, which is typically the total cost (materials + labor) of installing the measure minus any available incentives. Both the total cost and the incentive amounts are expressed in the summary for each ECM. Annual Energy Cost Savings (AECS): This value is determined by the audit firm based on the calculated energy savings (kWh or Therm) of each ECM and the calculated energy costs of the building. Lifetime Energy Cost Savings (LECS): This measure estimates the energy cost savings over the lifetime of the ECM. It can be a simple estimation based on fixed energy costs. If desired, this value can factor in an annual increase in energy costs as long as the source is provided. Simple Payback: This is a simple measure that displays how long the ECM will take to break-even based on the annual energy and maintenance savings of the measure. ECM Lifetime: This is included with each ECM so that the owner can see how long the ECM will be in place and whether or not it will exceed the simple payback period. Additional guidance for calculating ECM lifetimes can be found below. This value can come from manufacturer’s rated lifetime or warranty, the ASHRAE rated lifetime, or any other valid source. Operating Cost Savings (OCS): This calculation is an annual operating savings for the ECM. It is the difference in the operating, maintenance, and/or equipment replacement costs of the existing case versus the ECM. In the case where an ECM lifetime will be longer than the existing measures (such as LED lighting versus fluorescent) the operating savings will factor in the cost of replacing the units to match the lifetime of the ECM. In this case or in one where one-time repairs are made, the total replacement/repair sum is averaged over the lifetime of the ECM. Return on Investment (ROI): The ROI is expresses the percentage return of the investment based on the lifetime cost savings of the ECM. This value can be included as an annual or lifetime value, or both. Net Present Value (NPV): The NPV calculates the present value of an investment’s future cash flows based on the time value of money, which is accounted for by a discount rate (assumes bond rate of 3.2%). Internal Rate of Return (IRR): The IRR expresses an annual rate that results in a break-even point for the investment. If the owner is currently experiencing a lower return on their capital than the IRR, the project is financially advantageous. This measure also allows the owner to compare ECMs against each other to determine the most appealing choices.

Calculation References ECM = Energy Conservation Measure AOCS = Annual Operating Cost Savings AECS = Annual Energy Cost Savings LOCS = Lifetime Operating Cost Savings LECS = Lifetime Energy Cost Savings LCS = Lifetime Cost Savings NPV = Net Present Value


IRR = Internal Rate of Return DR = Discount Rate Net ECM Cost = Total ECM Cost – Incentive LECS = AECS X ECM Lifetime AOCS = LOCS / ECM Lifetime LCS = LOCS+LECS Note: The lifetime operating cost savings are all avoided operating, maintenance, and / or component replacement costs over the lifetime of the ECM. This can be the sum of any annual operating savings, recurring or bulk (i.e. one-time repairs) maintenance savings, or the savings that comes from avoiding equipment replacement needed for the existing measure to meet the lifetime of the ECM (e.g. lighting change outs). Simple Payback = Net ECM Cost / (AECS + AOCS) Lifetime ROI = (LECS + LOCS – Net ECM Cost) / Net ECM Cost Annual ROI = (Lifetime ROI / Lifetime) = (AECS + OCS) / Net ECM Cost – 1 / Lifetime

It is easiest to calculate the NPV and IRR using a spreadsheet program like Excel.

Excel NPV and IRR Calculation In Excel, function =IRR(values) and =NPV(rate, values) are used to quickly calculate the IRR and NPV of a series of annual cash flows. The investment cost will typically be a negative cash flow at year 0 (total cost - incentive) with years 1 through the lifetime receiving a positive cash flow from the annual energy cost savings and annual maintenance savings. The calculations in the example below are for an ECM that saves $850 annually in energy and maintenance costs (over a 10 year lifetime) and takes $5,000 to purchase and install after incentives:


ECM and Equipment Lifetimes

Determining a lifetime for equipment and ECM’s can sometimes be difficult. The following table contains a list of lifetimes that the NJCEP uses in its commercial and industrial programs. Other valid sources are also used to determine lifetimes, such as the DOE, ASHRAE, or the manufacturer’s warranty. Lighting is typically the most difficult lifetime to calculate because the fixture, ballast, and bulb can all have different lifetimes. Essentially the ECM analysis will have different operating cost savings (avoided equipment replacement) depending on which lifetime is used. When the bulb lifetime is used (rated burn hours/annual burn hours), the operating cost savings is just reflecting the theoretical cost of replacing the existing case bulb and ballast over the life of the recommended bulb. Dividing by the bulb lifetime will give an annual operating cost savings. When a fixture lifetime is used (e.g. 15 years) the operating cost savings reflects the avoided bulb and ballast replacement cost of the existing case over 15 years minus the projected bulb and ballast replacement cost of the proposed case over 15 years. This will give the difference of the equipment replacement costs between the proposed and existing cases and when divided by 15 years will give the annual operating cost savings.


NJCEP C & I Lifetimes Measure

Measure Life

Commercial Lighting — New 15 Commercial Lighting — Remodel/Replacement 15 Commercial Custom — New 18 Commercial Chiller Optimization 18 Commercial Unitary HVAC — New - Tier 1 15 Commercial Unitary HVAC — Replacement - Tier 1 15 Commercial Unitary HVAC — New - Tier 2 15 Commercial Unitary HVAC — Replacement Tier 2 15 Commercial Chillers — New 25 Commercial Chillers — Replacement 25 Commercial Small Motors (1-10 HP) — New or Replacement 20 Commercial Medium Motors (11-75 HP) — New or Replacement

20

Commercial Large Motors (76-200 HP) — New or Replacement

20

Commercial VSDs — New 15 Commercial VSDs — Retrofit 15 Commercial Comprehensive New Construction Design 18 Commercial Custom — Replacement 18 Industrial Lighting — New 15 Industrial Lighting — Remodel/Replacement 15 Industrial Unitary HVAC — New - Tier 1 15 Industrial Unitary HVAC — Replacement - Tier 1 15 Industrial Unitary HVAC — New - Tier 2 15 Industrial Unitary HVAC — Replacement Tier 2 15 Industrial Chillers — New 25 Industrial Chillers — Replacement 25 Industrial Small Motors (1-10 HP) — New or Replacement 20 Industrial Medium Motors (11-75 HP) — New or Replacement 20 Industrial Large Motors (76-200 HP) — New or Replacement 20 Industrial VSDs — New 15 Industrial VSDs — Retrofit 15 Industrial Custom — Non-Process 18 Industrial Custom — Process 10 Small Commercial Gas Furnace — New or Replacement 20 Small Commercial Gas Boiler — New or Replacement 20 Small Commercial Gas DHW — New or Replacement 10 C&I Gas Absorption Chiller — New or Replacement 25 C&I Gas Custom — New or Replacement (Engine Driven Chiller)

25

C&I Gas Custom — New or Replacement (Gas Efficiency Measures)

18

O&M savings 3 Compressed Air (GWh participant) 8


APPENDIX E: STATEMENT OF ENERGY PERFORMANCE FROM ENERGY STAR


APPENDIX F: INCENTIVE PROGRAMS

The NJ Clean Energy Pay for Performance (P4P) Program relies on a network of Partners who provide technical services to clients. LGEA participating clients who are not receiving Direct Energy Efficiency and Conservation Block Grants are eligible for P4P. SWA is an eligible Partner and can develop an Energy Reduction Plan for each project with a whole-building traditional energy audit, a financial plan for funding the energy measures and an installation construction schedule.

New Jersey Clean Energy Pay for Performance

The Energy Reduction Plan must define a comprehensive package of measures capable of reducing a building’s energy consumption by 15+%. P4P incentives are awarded upon the satisfactory completion of three program milestones: submittal of an Energy Reduction Plan prepared by an approved Program Partner, installation of the recommended measures and completion of a Post-Construction Benchmarking Report. The incentives for electricity and natural gas savings will be paid based on actual savings, provided that the minimum 15%performance threshold savings has been achieved. For further information, please see: http://www.njcleanenergy.com/commercial-industrial/programs/pay-performance/existing-buildings . Direct Install 2010 ProgramDirect Install is a division of the New Jersey Clean Energy Program’s Smart Start Buildings. It is a turn-key program for small to mid-sized facilities to aid in upgrading equipment to more efficient types. It is designed to cut overall energy costs by upgrading lighting, HVAC and other equipment with energy efficient alternatives. The program pays up to 80% of the retrofit costs, including equipment cost and installation costs.

Eligibility:

• Existing small and mid-sized commercial and industrial facilities with peak electrical demand below 200 kW within 12 months of applying

• Must be located in New Jersey • Must be served by one of the state’s public, regulated or natural gas companies

• Electric: Atlantic City Electric, Jersey Central Power & Light, Orange Rockland Electric, PSE&G

• Natural Gas: Elizabethtown Gas, New Jersey Natural Gas, PSE&G, South Jersey Gas

For the most up to date information on contractors in New Jersey who participate in this program, go to: http://www.njcleanenergy.com/commercial-industrial/programs/direct-install

Smart Start

New Jersey’s SmartStart Building Program is administered by New Jersey’s Office of Clean Energy. The program also offers design support for larger projects and technical assistance for smaller projects. If your project specifications do not fit into anything defined by the program, there are even incentives available for custom projects. There are a number of improvement options for commercial, industrial, institutional, government, and agricultural projects throughout New Jersey. Alternatives are designed to enhance quality while building in energy efficiency to save money. Project categories included in this program are New Construction and Additions, Renovations, Remodeling and Equipment Replacement.

http://www.njcleanenergy.com/commercial-industrial/programs/pay-performance/existing-buildings�

http://www.njcleanenergy.com/commercial-industrial/programs/pay-performance/existing-buildings�

http://www.njcleanenergy.com/commercial-industrial/programs/direct-install�


For the most up to date information on how to participate in this program, go to: http://www.njcleanenergy.com/commercial-industrial/programs/nj-smartstart-buildings/nj-smartstart-buildings.

Renewable Energy Incentive Program

The Renewable Energy Incentive Program (REIP) provides incentives that reduce the upfront cost of installing renewable energy systems, including solar, wind, and sustainable biomass. Incentives vary depending upon technology, system size, and building type. Current incentive levels, participation information, and application forms can be found here. Solar Renewable Energy Credits (SRECs) represent all the clean energy benefits of electricity generated from a solar energy system. SRECs can be sold or traded separately from the power, providing owners a source of revenue to help offset the cost of installation. All solar project owners in New Jersey with electric distribution grid-connected systems are eligible to generate SRECs. Each time a system generates 1,000 kWh of electricity an SREC is earned and placed in the customer's account on the web-based SREC tracking system. For the most up to date information on how to participate in this program, go to: http://www.njcleanenergy.com/renewable-energy/home/home.

Utility Sponsored Programs

Check with your local utility companies for further opportunities that may be available.

Federal and State Sponsored Programs

Other federal and state sponsored funding opportunities may be available, including Block and R&D grant funding. For more information, please check http://www.dsireusa.org/.

http://www.njcleanenergy.com/commercial-industrial/programs/nj-smartstart-buildings/nj-smartstart-buildings�

http://www.njcleanenergy.com/commercial-industrial/programs/nj-smartstart-buildings/nj-smartstart-buildings�

http://www.njcleanenergy.com/renewable-energy/home/home�

http://www.dsireusa.org/�


APPENDIX G: ENERGY CONSERVATION MEASURES


ECM

#

ECM Equipment source

est.

inst

alle

d co

st, $

est.

ince

ntiv

es,

$

net e

st. E

CM

co

st w

ith

ince

ntiv

es, $

kWh,

1st

yr

savi

ngs

kW, d

eman

d re

duct

ion/

mo

ther

ms,

1st

yr

savi

ngs

kBtu

/sq

ft, 1

st

yr s

avin

gs

est.

oper

atin

g co

st, 1

st y

r sa

ving

s, $

tota

l 1st

yr

savi

ngs,

$

life

of

mea

sure

, yrs

est.

lifet

ime

ener

gy c

ost

savi

ngs,

$

sim

ple

payb

ack,

yrs

lifet

ime

retu

rn

on in

vest

men

t, %

annu

al re

turn

on

inve

stm

ent,

%

inte

rnal

rate

of

retu

rn, %

net p

rese

nt

valu

e, $

CO

2 re

duce

d,

lbs/

yr

54Replace Theater DHW 54kW electric with 85%

AFUE gas heater

RS Means and similar projects

5,550 400 5,150 28,080 5.4 (958) 0.0 0 2,421 13 31,471 2.1 511 39 47 18,662 27,260

55Replace Dental lab

6kW electric with 85% AFUE gas heater

RS Means and similar projects

4,050 0 4,050 6,240 1.2 (213) 0.0 0 538 13 6,994 7.5 73 6 8 1,242 6,058

2 TOTAL - 9,600 400 9,200 34,320 6.6 -1,171 0.0 0 2,959 20 38,465 3.1 318 16 31 21,869 2,355,766

ECM Category 5: (54-55) Replace Existing Electric Water Heaters with Gas Water Heaters


APPENDIX H: INDIVIDUAL ECMS IN ORDER OF PAYBACK PERIOD


APPENDIX I: COLOR DECODER FOR USE WITH APPENDICES

Tech

Pitkin

Ciarco

Ender

West


APPENDIX J: PHOTOVOLTAIC SHADING ANALYSIS


APPENDIX K: METHOD OF ANALYSIS

Assumptions and tools Energy modeling tool: Established/standard industry assumptions, eQUEST Cost estimates: RS Means 2009 (Facilities Maintenance & Repair Cost Data)

RS Means 2009 (Building Construction Cost Data) RS Means 2009 (Mechanical Cost Data)

Published and established specialized equipment material and labor costs Cost estimates also based on utility bill analysis and prior experience with similar projects

Disclaimer This engineering audit was prepared using the most current and accurate fuel consumption data available for the site. The estimates that it projects are intended to help guide the owner toward best energy choices. The costs and savings are subject to fluctuations in weather, variations in quality of maintenance, changes in prices of fuel, materials, and labor, and other factors. Although we cannot guarantee savings or costs, we suggest that you use this report for economic analysis of the building and as a means to estimate future cash flow.

THE RECOMMENDATIONS PRESENTED IN THIS REPORT ARE BASED ON THE RESULTS OF ANALYSIS, INSPECTION, AND PERFORMANCE TESTING OF A SAMPLE OF COMPONENTS OF THE BUILDING SITE. ALTHOUGH CODE-RELATED ISSUES MAY BE NOTED, SWA STAFF HAVE NOT COMPLETED A COMPREHENSIVE EVALUATION FOR CODE-COMPLIANCE OR HEALTH AND SAFETY ISSUES. THE OWNER(S) AND MANAGER(S) OF THE BUILDING(S) CONTAINED IN THIS REPORT ARE REMINDED THAT ANY IMPROVEMENTS SUGGESTED IN THIS SCOPE OF WORK MUST BE PERFORMED IN ACCORDANCE WITH ALL LOCAL, STATE, AND FEDERAL LAWS AND REGULATIONS THAT APPLY TO SAID WORK. PARTICULAR ATTENTION MUST BE PAID TO ANY WORK WHICH INVOLVES HEATING AND AIR MOVEMENT SYSTEMS, AND ANY WORK WHICH WILL INVOLVE THE DISTURBANCE OF PRODUCTS CONTAINING MOLD, ASBESTOS, OR LEAD.

local government energy program energy audit final report

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