project - avaneds.com avan/122613-gsu-submittals... · ansi/ashrae 15 5. osha as adopted by the...

SUBMITTAL DATED: December 23, 2013

Daikin Applied Georgia 1765 West Oak Parkway, Ste. 500

Marietta, GA 30062 Michael M Eckert, LEED AP; Sales Engineer

Cell: 678.372.5034 [email protected]

PROJECT Georgia State University Project No 093-073-11

J – 183 Humanities – Law Building 85 Park Place

Atlanta, GA 30303

MECHANICAL CONTRACTOR Gainesville Mechanical, Inc

2519 Monroe Dr Gainesville, GA 30507

770.532.9130

MECHANICAL ENGINEER Stevens & Wilkinson

100 Peachtree Street NW. Suite 2500

Atlanta, GA 30303

Equipment Daikin Magnetic Bearing Water Cooled Chillers

TAGS: ( CH-1, CH-2)

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Submittal Coordination Comments:

1. Contractor to verify electrical information and communication

protocol before release. (BACnet IP is currently provided)

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Table of Contents – GSU Humanities Law Bldg CDE . . . . . . . . . . . 4Chiller Schedule . . . . . . . . . 10 Specifications . . . . . . . . . 11 CH – 1, CH – 2 . . . . . . . . . 17

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SECTION 23 6416CENTRIFUGAL WATER CHILLERS - REVISION 5

REVISION 5

PART 1: GENERAL1.01 Summary

A. Section includes design, performance criteria, refrigerants, controls, and installationrequirements for water-cooled centrifugal chillers.

1.02 ReferencesA. Comply with the following codes and standards:

1. AHRI 550/5902. AHRI 5753. NEC4. ANSI/ASHRAE 155. OSHA as adopted by the State6. ETL7. ASME Section VIII8. ASHRAE 90.1

1.03 SubmittalsA. Submittals shall include the following:

1. Dimensioned plan and elevation view drawings, required clearances, and location of allfield connections.

2. Summary of all auxiliary utility requirements such as electricity, water, etc. Summary shallindicate quality and quantity of each required utility.

3. Diagram of control system indicating points for field interface and field connection. Diagram shall fully depict field and factory wiring.

4. Manufacturer’s certified performance data at full load plus IPLV or NPLV.5. Installation and Operation manuals.

1.04 Quality AssuranceA. Regulatory Requirements: Comply with the codes and standards in above Section 1.02.B. Chiller manufacturer must be ISO Certified.C. The chiller shall be tested to job conditions at the manufacturer's plant.

1.05 Delivery and HandlingA. Chillers shall be delivered to the job site completely assembled and charged with refrigerant

R134a and be shipped on skids with a weather resistant cover.B. Comply with the manufacturer's instructions for rigging and handling equipment. Leave

protective covers in place until installation.1.06 Warranty

A. The chiller manufacturer's warranty shall cover parts and labor costs for the repair orreplacement of defects in material or workmanship, and include refrigerant for the entire unit, fora period of one year from equipment startup or 18 months from shipment, whichever occursfirst, substantial completion and also include an additional extended warranty for four years onthe compressor and drive train only. Warranty support shall be provided by company direct orfactory authorized service permanently located near the job site.

1.07 MaintenanceA. Maintenance of the chillers in accordance with manufacturer’s recommendations as published

in the installation and maintenance manuals shall be the responsibility of the owner.

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***DAIKIN APPLIED is providing 5 yr full unit parts&labor wty covering

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full chiller

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from shipment.**

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11020.00 / J-183 GSU Humanities-Law 23 6416 - 2 CENTRIFUGAL WATER CHILLERS -REVISION 5

PART 2: PRODUCTS2.01 Acceptable Manufacturers

A. Basis of Design: Daikin McQuay® Magnitude Model WME, including the standard productfeatures and all special features as required per the plans and specifications.

B. Smardt Chiller Inc.C. Johnson Controls.D. Multistack

2.02 Unit DescriptionA. Provide and install as shown on the plans a factory assembled, charged, and tested

water-cooled packaged centrifugal chiller. Chillers shall have no more than four oil-free,magnetic bearing, semi-hermetic centrifugal compressors. The compressor shall have anintegrated variable-frequency drive operating in concert with inlet guide vanes for optimized fulland part load efficiency. If two-compressors are used, the evaporator and condenser refrigerantsides and the expansion valve shall be common and the chiller shall be capable of running onone compressor with the other compressor or any of its auxiliaries inoperable or removed.

B. Each chiller shall under go a one point certified factory performance tested on an AHRI certifiedtest stand with water at job conditions (excluding glycol applications). A manufacture’s engineershall oversee the testing, certify the accuracy of the computerized results, and then translatesthe test data onto an easy-to-read spreadsheet provided to the owner. The tests are to be runas specified in advance and are run to within AHRI tolerance of capacity and power. 50 Hz unitsare run tested at 60 Hz to their maximum motor power. Operating controls shall be adjusted andchecked. The refrigerant charge shall be adjusted for optimum operation and recorded on theunit nameplate. Units operating with 50-Hz power shall be tested with a 50-Hz power supply.Any deviation in performance or operation shall be remedied prior to shipment and the unitretested if necessary to confirm repairs or adjustments.

2.03 Design RequirementsA. General: Provide a complete water-cooled, semi-hermetic, oil-free centrifugal compressor water

chiller as specified herein. The unit shall be provided according to standards indicated inSection 1.2. In general, unit shall consist of one, two, three or four magnetic bearing, oil-freecentrifugal compressors, refrigerant, condenser and evaporator, and control systems includingintegrated variable frequency drive, operating controls and equipment protection controls.Chiller shall be charged with refrigerant HFC-134A.

B. The entire chiller system, including all pressure vessels, shall remain above atmosphericpressure during all operating conditions and during shut down to ensure that non-condensablesand moisture do not contaminate the refrigerant and chiller system. If any portion of the chillersystem is below atmospheric pressure during either operation or shut down, the manufacturershall include, at no charge:1. A 20-year purge maintenance agreement that provides parts, labor, and all preventative

maintenance required by the manufacturer’s operating and maintenance instructions.2. A complete purge system capable of removing non-condensables and moisture during

operation and shut-down.3. The manufacturer shall also include at no charge for a period of 20 years an annual oil and

refrigerant analysis report to identify chiller contamination due to vacuum leaks. If theanalysis identifies water, acid, or other contaminant levels higher than specified by themanufacturer, the oil and/or refrigerant must be replaced or returned to the manufacturer’soriginal specification at no cost to the owner.

4. The manufacturer shall include a factory-installed and wired system that will enable servicepersonnel to readily elevate the vessel pressure during shutdown to facilitate leak testing.

5. A factory mounted, wired, and installed shell pressurization system shall be provided tokeep air out of the chiller when the unit is not in service. Electric blanket or hot watercirculation system are both acceptable.

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C. Performance: Refer to chiller performance rating.D. Acoustics: Sound pressure for the unit shall not exceed the following specified levels. Sound

attenuation shall be provided on the compressor discharge at a minimum with additionalacoustic treatment to chiller as required. Sound data shall be measured in dB according toAHRI Standard 575 and shall include overall dBA. Data shall be the highest levels recorded atall load points.

OctaveBand

Overall(dBA)

63Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz41.0 57.0 66.0 71.0 72.0 71.0 81.0 69.0 83.2

76%Load

79.1

50%Load

78.1

25%Load

80.0

2.04 Chiller ComponentsA. Compressors: The unit shall utilize a magnetic bearing, oil-free, semi-hermetic centrifugal

compressor. The levitated shaft position shall be digitally controlled and shall be monitored byX-axis position sensor, Y-axis position sensor, and Z-axis position sensor. The compressordrive train shall be capable of coming to a controlled, safe stop in the event of a power failure bydiverting stored power to the magnetic bearing controls system.1. The motor shall be of the semi-hermetic type, of sufficient size to efficiently fulfill

compressor horsepower requirements. It shall be liquid refrigerant cooled with internalthermal sensing devices in the stator windings. The motor shall be compatible with variablefrequency drive operation.

2. The chiller shall be equipped with an integrated Variable Frequency Drive (VFD) toautomatically regulate compressor speed in response to cooling load and the compressorpressure lift requirement. Movable inlet guide vanes and variable compressor speed actingtogether, shall provide unloading. The chiller controls shall coordinate compressor speedand guide vane position to optimize chiller efficiency.

3. The compressor circuit shall be equipped with a 5% impedance line reactor to help protectagainst incoming power surges and help reduce harmonic distortion.

4. The compressor shall be vibration tested and not exceed a level of 0.14 IPS.B. Evaporator and Condenser:

1. The evaporator and condenser shall be separate vessels of the shell-and-tube type,designed, constructed, tested and stamped according to the requirements of the ASMECode, Section VIII. Regardless of the operating pressure, the refrigerant side of eachvessel will bear the ASME stamp indicating compliance with the code and indicating a testpressure of 1.1 times the working pressure, but not less than 100 psig. The tubes shall beindividually replaceable and secured to the intermediate supports without rolling orexpanding to facilitate replacement if required.

2. The evaporator shall be flooded or fallen film type with 0.025 in to 0.028 in. wall copperinternally and externally enhanced tubes rolled into carbon steel tubesheets. The waterside shall be designed for a minimum of 150 psig. The refrigerant side shall be designedfor a minimum of 200 psi. Provide intermediate tube supports at a maximum of 24 inchspacing. The heads shall be carbon steel and the tubes shall be carbon steel. Waterconnections shall be grooved suitable for Victaulic couplings. The evaporator shall havedished heads with valved drain and vent connections.

3. The condenser shall have 0.035 in. wall copper internally and externally enhanced tubesrolled into carbon steel. Water connections shall be grooved suitable for Victaulic

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couplings. The water side shall be designed for a minimum of 150 psig. The refrigerantside shall be designed for a minimum of 200 psi. Provide intermediate tube supports at amaximum of 24 inch spacing. The condenser shall have dished heads with valved drainand vent connections.

4. Provide sufficient isolation valves and condenser volume to hold the full unit refrigerantcharge in the condenser during servicing or provide a separate pumpout system andstorage tank sufficient to hold the charge of the largest unit being furnished.

5. An electronic expansion valve shall control refrigerant flow to the evaporator. Fixed orificedevices or float controls with hot gas bypass are not acceptable because of inefficientcontrol at low load conditions. The liquid line shall have moisture indicating sight glass.

6. Re-seating type spring loaded pressure relief valves according to ASHRAE-15 safety codeshall be furnished. The evaporator shall be provided with single or multiple valves. Thecondenser shall be provided with dual relief valves equipped with a transfer valve so onerelief valve can be removed for testing or replacement without loss of refrigerant orremoval of refrigerant from the condenser. Rupture disks are not acceptable. If rupturedisks are required on negative pressure units to prevent air and moisture ingress, thenfactory mounted spring loaded pressure relief valves shall be provided in series with therupture disks to contain the remaining refrigerant in the event of vesselover-pressurization. The space between the rupture disk and the relief valve shall includea suitable telltale indicator integrated into the chiller control system to alert the operatorthat a potential safety issue exists in the pressure relief system.

7. The evaporator, including water heads, suction line, and any other component or part of acomponent subject to condensing moisture shall be insulated with UL recognized 3/4 inchclosed cell insulation. All joints and seams shall be carefully sealed to form a vapor barrier.

8. Provide factory-mounted and wired, thermal-dispersion water flow switches on each vesselto prevent unit operation with no or low water flow. Paddle and pressure differential typeswitches are not acceptable due to high rates of failure and false indications from thesetypes of flow indicators.

C. Vibration Isolation: Provide neoprene waffle-type vibration isolators for each corner of the unit.D. Power Connections: Power connection shall be single point to a factory-mounted disconnect

switch.E. Chiller Control:

1. The unit shall have a microprocessor-based control system consisting of a grahpicinterface and a unit controller.

2. The touch-screen shall display the unit operating parameters, accept setpoint changes(multi-level password protected) and be capable of resetting faults and alarms. Thefollowing parameters shall be displayed on the home screen and also as trend curves onthe trend screen:a. Entering and leaving chilled water temperaturesb. Entering and leaving condenser water temperaturesc. Evaporator saturated refrigerant Pressured. Condenser saturated refrigerant pressuree. Percent of 100% speed (per compressor)f. % of rated load amps for entire unit

3. In addition to the trended items above, all other important real-time operating parametersshall also be shown on the touch-screen. These items shall be displayed on a chillergraphic showing each component. At a minimum, the following critical areas must bemonitored:a. Compressor actual speed, maximum speed, percent speedb. Evaporator water in and out temperatures, refrigerant pressure and temperaturec. Condenser water in and out temperatures, refrigerant pressure and temperatured. Liquid line temperaturee. Chilled water setpointf. Compressor and unit state and input and output digital and analog values

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4. A fault history shall be displayed using an easy to decipher, color coded set of messagesthat are date and time stamped. Time interval scale shall be user selectable as 20 mins, 2 hours, or 8 hours. The alarm history shall be downloadable from the unit's USB port. Anoperating and maintenance manual specific for the unit shall be viewable on the screen.

5. All setpoints shall be viewable and changeable (multi-level password protected) on thetouch screen and include setpoint description and range of set values.

6. Automatic corrective action to reduce unnecessary cycling shall be accomplished throughpreemptive control of low evaporator or high discharge pressure conditions to keep the unitoperating through abnormal transient conditions.

7. Chiller shall be capable of starting with entering condenser water temperatures as low as40°F (4.4°C). For short periods of time during startup, the chiller shall be able to operatewith an entering condenser water temperature lower than the leaving chilled watertemperature.

8. Chiller shall be capable of stable operation with varying evaporator flow rate up to 50% perminute.

9. The factory mounted controller(s) shall support operation on a BACnet® network via oneof the data link / physical layers listed below as specified by the successful BuildingAutomation System (BAS) supplier. All communication from the chiller unit controller asspecified in the points list shall be via standard BACnet objects. Proprietary BACnetobjects shall not be allowed. BACnet communications shall conform to the BACnetprotocol (ANSI/ASHRAE135-2001). A BACnet Protocol Implementation ConformanceStatement (PICS) shall be provided along with the unit submittal.a. BACnet MS/TP master (Clause 9)b. BACnet IP, (Annex J)c. BACnet ISO 8802-3, (Ethernet)

10. The information communicated between the BAS and the factory mounted unit controllersshall include the reading and writing of data to allow unit monitoring, control and alarmnotification as specified in the unit sequence of operation and the unit points list.

11. The factory supplied VFD and controls shall include the following:a. Electronic overloadb. Phase loss protectionc. Under/over voltage protectiond. High short circuit panel rating of 65kA at 460v with a matching circuit breaker.

12. Energy saving software logic shall at a minimum offer the following:a. User programmable compressor soft loadingb. Chilled water resetc. Demand limit controld. Staging options lead lag between multiple compressors on a single chiller or on

multiple chillerse. Plotting of historic trends for optimizing efficiency

2.05 Optional Items: The following optional items shall be included:A. OPTION: Pumpout unit, with or without storage vesselB. OPTION: Refrigerant monitorC. Certified (1 point) performance test in accordance with procedures and to the tolerances

contained in AHRI Standard 550/590.D. ARI/ETL/CETL Approval.

PART 3: EXECUTION3.01 Installation - Installing Contractor to:

A. Install per manufacturer's requirements, shop drawings, and contract documents.B. Adjust chiller alignment on foundations, or sub bases as called for on drawings.C. Arrange piping to allow for dismantling to permit head removal and tube cleaning.

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***Recommend max rate of change of 10% per minute

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***PROVIDED FOR BOTH CHILLERS***

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D. Coordinate electrical installation with electrical contractor.E. Coordinate controls with control contractor.F. Provide all material required for a fully operational and functional chiller.

3.02 Start-UpA. Factory Start-Up Services: Provide for as long a time as is necessary to ensure proper

operation of the unit, but in no case for less than two full working days. During the period ofstart-up, the start-up technician shall instruct the owner’s representative in proper care andoperation of the unit.

END OF SECTION

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TAG Model Manufacturer Capacity (ton)

Full Load

(kW/ton)

NPLV (kW/ton)

Power (V/Hz/P)

RLA (A)

LRA (A)

Flow (gpm)

PD (ft H2O)

EWT (°F)

LWT (°F)

Flow (gpm)

PD (ft H2O)

EWT (°F)

LWT (°F)

CH-1, CH -2 WME0500S Daikin Applied 400.0 0.590 0.343 460/60/3 335 368 800.00 12.2 55.99 44.00 1,000.00 9.9 85.00 96.22

EvaporatorCentrifugal ChillerGSU Humanities - Law Building

Condenser

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SPECIFICATIONS

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PART 1: GENERAL

1.01 Summary A. Section includes design, performance criteria, refrigerants, controls, and installation requirements for water-

cooled centrifugal chillers.

1.02 References A. Comply with the following codes and standards:

a. AHRI 550/590 b. AHRI 575 c. NEC d. ANSI/ASHRAE 15 e. OSHA as adopted by the State f. ETL g. ASME Section VIII

1.03 Submittals

A. Submittals will include the following: 1. Dimensioned plan and elevation view drawings, required clearances, and location of all field connections. 2. Summary of all auxiliary utility requirements such as electricity, water, etc. Summary will indicate quality

and quantity of each required utility. 3. Diagram of control system indicating points for field interface and field connection. Diagram will fully

depict field and factory wiring. 4. Manufacturer’s certified performance data at full load plus IPLV or NPLV. 5. Installation and Operation manuals.

1.04 Quality Assurance

A. Regulatory Requirements: Comply with the codes and standards in above Section 1.02. B. Chiller manufacturer is ISO Certified. C. The chiller will be tested to job conditions at the manufacturer's plant.

1.05 Delivery and Handling

A. Chillers will be delivered to the job site completely assembled and charged with refrigerant R134a and be shipped on skids with a weather resistant cover.

B. Comply with the manufacturer's instructions for rigging and handling equipment. Leave protective covers in place until installation.

1.06 Warranty

A. The chiller manufacturer's warranty will cover parts and labor costs for the repair or replacement of defects in material or workmanship, and include refrigerant for the entire unit, for a period of one year from equipment startup or 18 months from shipment, whichever occurs first, and also include an additional extended warranty for four years on the entire unit including refrigerant coverage. Warranty support will be provided by company direct or factory authorized service permanently located near the job site.

1.07 Maintenance

A. Maintenance of the chillers in accordance with manufacturer’s recommendations as published in the installation and maintenance manuals will be the responsibility of the owner.

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PART 2: PRODUCTS

2.01 Unit Description A. Provide and install as shown on the plans a factory assembled, charged, and tested water-cooled packaged

centrifugal chiller. Chillers will have no more than two oil-free, magnetic bearing, semi-hermetic centrifugal compressors (no exceptions). The compressor will have an integrated variable-frequency drive operating in concert with inlet guide vanes for optimized full and part load efficiency. If two-compressors are used, the evaporator and condenser refrigerant sides and the expansion valve will be common and the chiller will be capable of running on one compressor with the other compressor or any of its auxiliaries inoperable or removed.

B. Each chiller will under go a one point certified factory performance tested on an AHRI certified test stand with water at job conditions (excluding glycol applications). A manufacture’s engineer will oversee the testing, certify the accuracy of the computerized results, and then translates the test data onto an easy-to-read spreadsheet provided to the owner. The tests are to be run as specified in advance and are run to within AHRI tolerance of capacity and power. 50 Hz units are run tested at 60 Hz to their maximum motor power. Operating controls will be adjusted and checked. The refrigerant charge will be adjusted for optimum operation and recorded on the unit nameplate. Units operating with 50-Hz power will be tested with a 50-Hz power supply.

2.02 Design Requirements

A. General: Provide a complete water-cooled, semi-hermetic, oil-free centrifugal compressor water chiller as specified herein. The unit will be provided according to standards indicated in Section 1.2. In general, unit will consist of one or two magnetic bearing, oil-free centrifugal compressors, refrigerant, condenser and evaporator, and control systems including integrated variable frequency drive, operating controls and equipment protection controls. Chiller will be charged with refrigerant HFC-134A.

B. The entire chiller system, including all pressure vessels, will remain above atmospheric pressure during all operating conditions and during shut down to ensure that non-condensables and moisture do not contaminate the refrigerant and chiller system.

C. Performance: Refer to chiller performance rating.

2.03 Chiller Components A. Compressors: The unit will utilize a magnetic bearing, oil-free, semi-hermetic centrifugal compressor. The

levitated shaft position will be digitally controlled and will be monitored by X-axis position sensor, Y-axis position sensor, and Z-axis position sensor. The compressor drive train will be capable of coming to a controlled, safe stop in the event of a power failure by diverting stored power to the magnetic bearing controls system. 1. The motor will be of the semi-hermetic type, of sufficient size to efficiently fulfill compressor horsepower

requirements. It will be liquid refrigerant cooled with internal thermal sensing devices in the stator windings. The motor will be compatible with variable frequency drive operation.

2. The chiller will be equipped with an integrated Variable Frequency Drive (VFD) to automatically regulate compressor speed in response to cooling load and the compressor pressure lift requirement. Movable inlet guide vanes and variable compressor speed acting together, will provide unloading. The chiller controls will coordinate compressor speed and guide vane position to optimize chiller efficiency.

3. The compressor circuit will be equipped with a 5% impedance line reactor to help protect against incoming power surges and help reduce harmonic distortion.

4. The compressor will be vibration tested and not exceed a level of 0.14 IPS. B. Evaporator and Condenser:

1. The evaporator and condenser will be separate vessels of the shell-and-tube type, designed, constructed, tested and stamped according to the requirements of the ASME Code, Section VIII. Regardless of the

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operating pressure, the refrigerant side of each vessel will bear the ASME stamp indicating compliance with the code and indicating a test pressure of 1.1 times the working pressure, but not less than 100 psig. The tubes will be individually replaceable and secured to the intermediate supports without rolling or expanding to facilitate replacement if required.

2. The evaporator will be flooded type with 0.025 in. wall copper internally and externally enhanced tubes rolled into carbon steel tubesheets. The water side will be designed for a minimum of 150 psig. The refrigerant side will be designed for a minimum of 200 psi. Provide intermediate tube supports at a maximum of 24 inch spacing. The heads will be carbon steel and the tubes will be carbon steel. Water connections will be grooved suitable for Victaulic couplings. The evaporator will have dished heads with valved drain and vent connections. The evaporator will have right-hand connections when looking at the unit control panel.

3. The condenser will have 0.035 in. wall copper internally and externally enhanced tubes rolled into carbon steel. Water connections will be grooved suitable for Victaulic couplings. The water side will be designed for a minimum of 150 psig. The refrigerant side will be designed for a minimum of 200 psi. Provide intermediate tube supports at a maximum of 24 inch spacing. The condenser will have dished heads with valved drain and vent connections. The condenser will have right-hand connections when looking at the unit control panel.

4. Provide sufficient isolation valves and condenser volume to hold the full unit refrigerant charge in the condenser during servicing or provide a separate pumpout system and storage tank sufficient to hold the charge of the largest unit being furnished.

5. An electronic expansion valve will control refrigerant flow to the evaporator. Fixed orifice devices or float controls with hot gas bypass are not acceptable because of inefficient control at low load conditions. The liquid line will have moisture indicating sight glass.

6. Re-seating type spring loaded pressure relief valves according to ASHRAE-15 safety code will be furnished. The evaporator will be provided with single or multiple valves. The condenser will be provided with dual relief valves equipped with a transfer valve so one relief valve can be removed for testing or replacement without loss of refrigerant or removal of refrigerant from the condenser. Rupture disks are not acceptable. If rupture disks are required on negative pressure units to prevent air and moisture ingress, then factory mounted spring loaded pressure relief valves will be provided in series with the rupture disks to contain the remaining refrigerant in the event of vessel over-pressurization. The space between the rupture disk and the relief valve will include a suitable telltale indicator integrated into the chiller control system to alert the operator that a potential safety issue exists in the pressure relief system.

7. The evaporator, including water heads, suction line, and any other component or part of a component subject to condensing moisture will be insulated with UL recognized 3/4 inch closed cell insulation. All joints and seams will be carefully sealed to form a vapor barrier.

8. Provide factory-mounted and wired, thermal-dispersion water flow switches on each vessel to prevent unit operation with no or low water flow.

C. Vibration Isolation: Provide neoprene waffle-type vibration isolators for each corner of the unit. D. Power Connections: Power connection will be single point to a factory-mounted disconnect switch. E. Chiller Control:

1. The unit will have a microprocessor-based control system consisting of a 15-inch VGA touch-screen operator interface and a unit controller.

2. The touch-screen will display the unit operating parameters, accept setpoint changes (multi-level password protected) and be capable of resetting faults and alarms. The following parameters will be displayed on the home screen and also as trend curves on the trend screen: a. Entering and leaving chilled water temperatures b. Entering and leaving condenser water temperatures c. Evaporator saturated refrigerant Pressure

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d. Condenser saturated refrigerant pressure e. Percent of 100% speed (per compressor) f. % of rated load amps for entire unit

3. In addition to the trended items above, all other important real-time operating parameters will also be shown on the touch-screen. These items will be displayed on a chiller graphic showing each component. At a minimum, the following critical areas will be monitored: a. Compressor actual speed, maximum speed, percent speed b. Evaporator water in and out temperatures, refrigerant pressure and temperature c. Condenser water in and out temperatures, refrigerant pressure and temperature d. Liquid line temperature e. Chilled water setpoint f. Compressor and unit state and input and output digital and analog values

4. A fault history will be displayed using an easy to decipher, color coded set of messages that are date and time stamped. Time interval scale will be user selectable as 20 mins, 2 hours, or 8 hours. The alarm history will be downloadable from the unit's USB port. An operating and maintenance manual specific for the unit will be viewable on the screen.

5. All setpoints will be viewable and changeable (multi-level password protected) on the touch screen and include setpoint description and range of set values.

6. Automatic corrective action to reduce unnecessary cycling will be accomplished through preemptive control of low evaporator or high discharge pressure conditions to keep the unit operating through abnormal transient conditions.

7. Chiller will be capable of starting with entering condenser water temperatures as low as 40°F (4.4°C). For short periods of time during startup, the chiller will be able to operate with an entering condenser water temperature lower than the leaving chilled water temperature.

8. Chiller will be capable of stable operation with varying evaporator flow rate up to 50% per minute. 9. Chiller plant optimization software for multiple chillers will be provided including automatic control of: at

least eight (8) chillers, evaporator and condenser pumps (primary and standby), up to 3 stages of cooling tower fan cycling control and a tower modulating bypass valve or cooling tower fan variable frequency drives.

10. The factory mounted controller(s) will support operation on a BACnet® network via one of the data link / physical layers listed below as specified by the successful Building Automation System (BAS) supplier. All communication from the chiller unit controller as specified in the points list will be via standard BACnet objects. BACnet communications will conform to the BACnet protocol (ANSI/ASHRAE135-2001). A BACnet Protocol Implementation Conformance Statement (PICS) will be provided along with the unit submittal. a. BACnet IP, (Annex J)

11. The information communicated between the BAS and the factory mounted unit controllers will include the reading and writing of data to allow unit monitoring, control and alarm notification as specified in the unit sequence of operation and the unit points list.

12. The factory supplied VFD and controls will include the following: a. Electronic overload b. Phase loss protection c. Under/over voltage protection d. High short circuit panel rating of 65kA at 460v with a matching circuit breaker. e. EMI filters to reduce radio frequency interference.

13. Energy saving software logic will at a minimum offer the following: a. User programmable compressor soft loading b. Chilled water reset c. Demand limit control

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d. Staging options lead lag between multiple compressors on a single chiller or on multiple chillers e. Plotting of historic trends for optimizing efficiency

PART 3: Execution

3.01 Installation - Installing Contractor to: A. Install per manufacturer's requirements, shop drawings, and contract documents. B. Adjust chiller alignment on foundations, or sub bases as called for on drawings. C. Arrange piping to allow for dismantling to permit head removal and tube cleaning. D. Coordinate electrical installation with electrical contractor. E. Coordinate controls with control contractor. F. Provide all material required for a fully operational and functional chiller.

3.02 Start-Up

A. Factory Start-Up Services: Provide for as long a time as is necessary to ensure proper operation of the unit, but in no case for less than two full working days. During the period of start-up, the start-up technician will instruct the owner’s representative in proper care and operation of the unit.

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CH – 1, CH - 2 Section Contains:

• Technical Data Sheets • Drawings • Electrical Drawings

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MAGNITUDE™ Water Cooled Centrifugal Chiller

Page 1 of 3 www.DaikinApplied.com

Job Information Technical Data Sheet

Job Name GSU Humanities – Law School Date 12/23/2013 Submitted By Beverly Peek Software Version 09.00 Unit Tag CH-1, CH-2 Unit FPA# AUTO_40

Unit Overview

Model Number Capacity ton

NPLV kW/ton

Voltage Drive Type ASHRAE 90.1 LEED EA Credit 4

WME0500S 400.0 0.343 460 V / 60 Hz VFD/UM '04, '07 & '10 Pass

Unit Model Number: WME0500SSM2R/E3012-BE-2**/C3012-DPYY-2*****/R134-BAAAPAB-U

Approval: AHRI and ETL / cETL Vessel Code: ASME

Compressor Quantity Capacity Control Refrigerant Type Refrigerant Weight

1 VFD / Inlet Guide Vanes R134a 1154 lb Evaporator

Entering Fluid Temperature Leaving Fluid Temperature Fluid Type Actual Fluid Flow Minimum Fluid Flow

55.99 °F 44.00 °F Water 800.00 gpm 302.9 gpm

Length Diameter Number of Passes

Tube Fouling Factor Material Wall Thickness

12 ft 30 in 2 Copper 0.025 in 0.00010 °F.ft².h/Btu Condenser

Entering Fluid Temperature Leaving Fluid Temperature Fluid Type Fluid Flow

85.00 °F 96.22 °F Water 1000.00 gpm

Length Diameter Number of Passes

Tube Fouling Factor Material Wall Thickness

12 ft 30 in 2 Copper 0.035 in 0.00025 °F.ft².h/Btu

Unit Performance Design

Capacity ton

Input kW

Efficiency kW/ton

RLA A

NPLV kW/ton

Part Load Efficiency Evaporator Fluid Condenser Fluid 75%

kW/ton 50%

kW/ton 25%

kW/ton Pressure

Drop ft H₂O

Entering Temperature

°F

Pressure Drop ft H₂O

Leaving Temperature

°F 400.0 236.2 0.590 335 0.343 0.432 0.288 0.331 12.2 55.99 9.9 96.22

Performance Points Rated at AHRI Condenser Relief

Point # % of Design Load

Capacity ton

Input kW

Efficiency kW/ton

RLA A

Evaporator Fluid Condenser Fluid Flow gpm

Temperature Pressure Drop ft H₂O

Flow gpm

Temperature Pressure Drop ft H₂O

Entering °F

Leaving °F

Entering °F

Leaving °F

1 100.0 400.0 236.2 0.590 335 800.00 55.99 44.00 12.2 1,000.00 85.00 96.22 9.9 2 75.0 300.0 129.6 0.432 198 800.00 52.99 44.00 12.3 1,000.00 75.00 83.13 10.4 3 50.0 200.0 57.6 0.288 94 800.00 49.99 44.00 12.3 1,000.00 65.00 70.25 10.9 4 25.0 100.0 33.1 0.331 57 800.00 47.00 44.00 12.4 1,000.00 65.00 67.69 10.9

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Service Data

Service Points Rated at AHRI Condenser Relief

Point # Superheat Δ °F

Subcooling Δ °F

Evaporator Fluid Condenser Fluid Temperature

°F Pressure

psig Velocity

ft/s Temperature

°F Pressure

psig Velocity

ft/s 1 1.0 9.6 43.2 38.2 5.4 97.1 118.2 4.9 2 1.0 7.4 43.4 38.4 5.4 83.8 93.2 4.9 3 1.0 5.1 43.6 38.6 5.4 70.8 72.2 4.9 4 1.0 2.8 43.8 38.8 5.4 68.0 68.2 4.9

Physical Evaporator

Inlet Location Header Type Header Material Tube Sheet Material Design Pressure (Waterside)

Right Standard (Victaulic) Carbon Steel Carbon Steel 150 psig

Condenser

Inlet Location Header Type Header Material Tube Sheet Material Design Pressure (Waterside)

Right Standard (Victaulic) Carbon Steel Carbon Steel 150 psig

Electrical Voltage RLA LRA Power

Connection Power Factor MCA MOCP

460 V / 60 Hz / 3 Phase 335 A 368 A Single point 0.89 421 A 588 A

Drive Type Model Location Enclosure Type Motor Protection

VFD Integral Unit Mounted Nema 1 Standard Circuit Breaker Short Circuit Current Rating Approval

65 KAIC 65 kA ETL, ETLc

Sound (with Insulation) Sound Pressure

63 Hz 125 Hz 250 Hz 500 Hz 1 kHz 2 kHz 4 kHz 8 kHz Overall 75% Load 50% Load 25% Load

41.0 59.0 67.0 72.0 74.0 71.0 83.0 71.0 85.6 79.9 79.1 80.9 Sound Pressure (dB) measured in accordance with ANSI/AHRI Standard 575-2008 (‘A’ weighted)

Options Basic Unit

Packaging: Wood Shipping Skid with Bagging Insulation

Thermal: 3/4" on evap shell, cold surfaces and connection & return heads Control

Communication Protocol: BACnet MSTP, BACnet IP, BACnet Ethernet Drive

EMI Filter: Included

Warranty Unit Startup: Domestic by Daikin Factory Service (Std.)

Standard Warranty: Domestic, First Year Standard Warranty (Parts & Labor) Extended Warranty: 4 years Entire Unit Parts & Labor

Refrigerant Warranty: 5 years R-134a Warranty Delayed Warranty Start: None (Startup 12-18 months after ship date)

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AHRI Certification

Certified in accordance with the AHRI Water-Cooled Water Chilling Packages Using Vapor Compression Cycle Certification Program, which is based on AHRI Standard 550/590 (I-P) Certified units may be found in the AHRI Directory at www.ahridirectory.org.

Notes 1. Above RLA, MCA and MOCP values are per Compressor and are for input amps. 2. Performance kW values are total kW, unless noted otherwise. 3. Minimum flow is based upon standard condenser water relief and not increased lift due to constant condenser water

temperature. 4. The field wiring must be sized in accordance with the MCA and not the RLA as some selections may be below the

minimum required protection. 5. Motor overload settings determined by motor amps. Refer to unit nameplate for proper settings. 6. The USGBC bases it's LEED EA credit 4 calculations for Enhanced Refrigerant Management on the default values for a

water cooled centrifugal chiller with a 25-year life, 10% end of life loss and 2% annual leak rate. The gross ARI cooling capacity for the unit is at least 10 tons, and the refrigerant charge is 10 lbs.

7. The LEED result above considers the chiller only. When applying this information for credit or prerequisite compliance the entire building must be considered.

8. Use only copper supply wires with ampacity based on 75°C conductor rating. Connections to terminals must be made with copper lugs and copper wire.

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Refrigerant

lbs (kg) Total Weight

(inc. Refrigerant) lbs (kg) Water Volume gal (l) Center of Gravity ins (mm)

Evap Cond X Y Z

Operating 1154 (523)

17490 (7934)

130 (493)

169 (640)

79 (2002)

34 (869)

28 (719)

Shipping 14992 (6800)

169 (640)

79 (2002)

79 (2013)

34 (874)

27 (697)

3. Final connections must allow for 0.5 in. (12.7 mm) manufacturing tolerance. 4. 2.5 in. (64 mm) dia. lifting holes are provided. See installation manual for lifting instructions. 5. All water connections are given in standard U.S. pipe sizes. Standard connections are suitable for welding or victualic couplings. 6. Vibration isolator pads are provided for field installation (0.25 in (6 mm) thick when loaded). 7. If main power wiring is brought up through the floor, this wiring must be outside the envelope of the unit. 8. The shipping skid adds 4 in. (105 mm) to the overall unit height. 9. Dimensions shown are for units with standard 150 psi (1034 kPa) design water side pressure. Check factory for unit dimensions with higher pressures. 10. Overall height is shown from floor to VFD lifting eye bolt. Deduct 2" when lifting eye bolts are removed.

1. 1 in. (25 mm) FPT evaporator and condenser relief valves must be piped per ANSI/ASHRAE 15. 2. At a minimum, length of tube sheet to tube sheet dimensions is required at either end for tube removal, 36 in. (914 mm) is required at other end and each side and top for service.

Product Drawing Unit Tag: CH-1 Sales Office: Daikin Applied Georgia

13600 Industrial Park Blvd. Minneapolis, MN5544 www.DaikinApplied.com

Product: Magnitude™ Chiller Project Name: Copy of GSU - New Law

Sales Engineer: Matthew O'Brien Model: WME0500S/E3012-2RA/C3012-2RA Date: 23/12/2013 Ver/Rev: Sheet: 1 of 5 Scale: NTS Tolerance: +/- 1.0” Dwg Units: in (mm) WME0500SSM2RSAABE3012BE2RAC40440CCYAC3012DPYY2RAC40962CCYAA134116E2YYEAYYYYBMSTPEYYYYYYH2B14AXRY3BA0400UYKYJYY5AVFDM500SYYYYYYYRAAHH03350000E1YYYYN1UMC205HYYYY03840000Y No change to this drawing may be made unless approved in writing by Daikin Applied. Purchaser must determine that the equipment is fit and sufficient for the job specifications

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Operating Corner Weight lbs (kg)

LeftBack (LB)

LeftFront (LF)

RightBack (RB)

RightFront (RF)

3597 (1632)

4413 (2002)

4257 (1931)

5223 (2369)





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Product Drawing Unit Tag: CH-1, CH-2

13600 Industrial Park Blvd. Minneapolis, MN 55441 www.DaikinApplied.com Software Version: 09.00

Product: MagnitudeTM Chiller Project Name: GSU Humanities Model: WME0500-0700S Sales Office: Daikin Applied Georgia Sales Engineer: Matthew O'Brien Dec. 23, 2013 Ver/Rev: Sheet 1 of 1 Scale: N/A Tolerance: N/A Dwg Units: N/A

WME Field Wiring Diagram

00

Electrical Notes 1. Units are available for 60Hz, 460 or 440 to 480V. 2. Wiring, fuse and wire size must be in accordance with the National Electric Code (NEC). 3. Important: Voltage unbalance not to exceed 2% with a resultant current unbalance of 6 to 10 times the voltage unbalance per NEMA MG-1, 1998 Standard. This is an important restriction that must be adhered to. Power Wiring Use only copper supply wires with ampacity based on 75°C conductor rating. (Exception: for equipment rated over 2000 volts, 90°C or 105°C rated conductors should be used). Connections to terminals must be made with copper lugs and copper wire. Short Circuit Current Ratings The standard short circuit rating is 35kA for 460 V. Optional high short circuit current ratings are available for 65kA, and 100kA with a matching circuit breaker. The optional circuit breaker must be sized to meet these ratings. Notes for field wiring diagram 1. All line-side wiring must be in accordance with the NEC and be made with copper wire and copper lugs only. Power wiring connection is in the VFD panel located at the rear of the unit. 2. Minimum control wire size for 115 VAC is 12 ga. for a maximum length of 50 feet. If greater than 50 feet, contact your Daikin representative for recommended wire size minimum. Wire size for 24 VAC is 18 ga. All wiring to be installed as NEC Class 1 wiring system. All 24 VAC wiring must be run in separate conduit from 115 VAC wiring. Wiring must be wired in accordance with NEC and connection to be made with copper wire and copper lugs only. 3. Voltage unbalance not to exceed 2% with a resultant current unbalance of 6 to 10 times the voltage unbalance per NEMA MG-1, 1998 Standard. Voltage variation is +/- 10% of nameplate voltage. 4. A customer furnished 24 or 240 Vac power for alarm relay coil may be connected at J18. The alarm is operator programmable. Maximum rating of the alarm relay coil is 25 VA. 5. Remote on/off control of unit can be accomplished by installing a set of dry contacts at J25. 6. If field supplied pressure differential flow switches are used, they must be installed across the vessel and not the pump. They must be suitable for 24vac and low current application. 7. Optional customer supplied 25 VA maximum coil rated, chilled water pump relay may be wired as shown. This option will cycle the chilled water pump in response to chiller demand. 8. The condenser water pump must cycle with the unit. A customer supplied 25 VA maximum coil rated, condenser water pump relay must be wired as shown. Units with free-cooling must have condenser water above 50°F before starting. 9. Optional customer supplied 25 VA maximum coil rated cooling tower fan relays may be wired as shown. This option will cycle the cooling tower fans in order to maintain unit head pressure. 10. 4-20 mA external signal for chilled water reset are wired to J23; demand limit is wired to J26.

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