dn series doas - renewaire · 2019-05-29 · a closer look dn series our dn series doas effectively...

u Split DOAS units with static- plate total energy recovery

u 375-4,950 CFM

u Single-point connection, direct-drive EC fans, injected foam panels

u Modular design

VENTILATION SOLUTIONS FOR EVERY APPLICATION

SHOWN WITH OPTIONAL VFD MOTORS (EC MOTOR STANDARD)

DEDICATED OUTDOOR AIR UNITS WITH ENERGY RECOVERY

DN SERIES DOAS

DN SERIES DEDICATED OUTDOOR AIR UNITS

RENEWAIRE CORE TECHNOLOGY

CERTIFICATION u Ensures no exhaust-airstream contaminants enter the fresh

airstream, which is maintained by airstream physical separation across the core membrane

u Superior core flammability performance; passes UL-723 and UL-1812

MAINTENANCEu RenewAire cores are easy to clean without removing them from the unit,

and they never require washing

INNOVATIVE CONSTRUCTIONu Core exchanger material is cellulosic-based and does not contain or use

halogenated flame retardants or PVCs

u Manufactured with a galvanized steel frame

EXCEPTIONAL PERFORMANCEu Transfers both heat and humidity

u Certified by the Air Conditioning, Heating and Refrigeration Institute (AHRI) for an industry leading low-to-zero Exhaust Air Transfer Ratio (EATR) at typical static pressure differentials

u No need for frost protection or condensate pans

u Laminar airflow ensures that particulates do not accumulate in the core

REDUCED COSTS u Optimized energy efficiency via core energy transfer decreases ventilation

energy requirements, which can result in smaller air conditioning and heating needs

WITH ENERGY RECOVERY

DOAS A REVOLUT IONARY IDEA Commercial buildings require outside air whenever a space is occupied to meet ventilation standards and maintain indoor air quality. Incoming ventilation and make-up air typically account for more than 80% of a building’s dehumidification load [2015 ASHRAE Applications Handbook]. Hence, decoupling outdoor air demand and interior load demand allows each system to operate independently to achieve optimized operational efficiency.

A revolutionary idea, proposed two decades ago, was to handle the outdoor air and return air separately in building HVAC systems. This new concept describes the application of Dedicated Outdoor Air Systems (DOAS) for delivering dehumidified air to buildings to improve the indoor air quality and thermal comfort. Research concluded that DOAS provided many potential advantages compared to conventional HVAC systems.

2 3

OPTIMIZE OPERAT IONAL EFF IC IENCY WITH DOAS DOAS uses separate equipment to condition all of the outdoor air brought into a building for ventilation, and delivers it to each occupied space—either directly or in conjunction with terminal or central HVAC units serving those same spaces. The terminal or central HVAC units are used to maintain space temperature.

u Improved humidity control

u Ability to use heating and cooling systems that do not provide ventilation and/or dehumidification (e.g., radiant panels, chilled beams, VRF)

u Reduced installation costs

u Reduced energy consumption

u Simplified ventilation design and control

BENEF ITS OF DOAS There are many reasons to use DOAS. Some of the most common drivers are:

RETURN AIR

SUPPLY AIR

OUTDOOR AIR

EXHAUST AIR

DEDICATED OUTDOOR AIR SYSTEM

OPTIMIZE ENERGY EFFICIENCY u Preconditions incoming air with otherwise-wasted total energy (heat and humidity) of the exhaust air going out

IN SUMMER, THE WARM, HUMID OUTSIDE AIR IS PRECOOLED AND DEHUMIDIFIED BY THE OUTGOING COOL INTERIOR AIR

IN WINTER, THE COLD, DRY OUTSIDE AIR IS PREHEATED AND HUMIDIFIED BY THE OUTGOING WARM INTERIOR AIR

FOUR PROBLEMS WITH TRADIT IONAL DES IGN

TERMINAL SYSTEMS Terminal systems, such as variable refrigerant flow (VRF), chilled beams, etc., do not have the capacity to handle the moisture load from the outdoor air. Dedicated outdoor air systems can easily manage outdoor air load, allowing the terminal systems to manage the internal load.

VAV SYSTEMS VAV systems operate in a way that modulates airflow. Mixed air conditioned in central systems cannot assure that outdoor air will be supplied into spaces. This is usually called ventilation effectiveness. A DOAS system solves this problem by providing a dedicated supply of 100% outdoor air.

OUTDOOR AIR Outdoor air in today’s designs require variable outdoor air. Central systems may not have the capacity to handle this variability, whereas dedicated outdoor air systems can be designed to handle it.

CONVENTIONAL SYSTEMS Conventional systems do not decouple the sensible and latent loads. Since most of the latent load comes from the outdoor air, operation of these systems to satisfy internal thermal loads can result in high indoor humidity, especially during unoccupied times. Properly designed dedicated outdoor air systems can accommodate 100% of the space latent loads and a portion of the space sensible loads, thus decoupling the space sensible and latent loads. Dedicated outdoor air systems are designed to solve most of the inherent problems associated with energy consumption, operational inefficiencies and steady-state thermal and humidity condition variances we see today.

CONVENTIONAL HVAC SYSTEM

OUTDOOR AIR

RETURN AIR

SUPPLY AIR

CODE REQUIREMENTS FOR ENERGY RECOVERY IN DOASSpecific codes within various regions do call for DOAS-type products to deliver 100% outside air to each occupied space. DOAS units incorporating energy recovery is a mandated feature for most code jurisdictions. ASHRAE standard 90.1 and IECC require a minimum of 50% of total effectiveness for the energy recovery component. Even when not mandated, it is one of the best ways to improve a building’s energy efficiency.

WELL BU ILD ING STANDARD, H IGHEST-QUAL ITY INDOOR A IR AND DOAS The WELL Building Standard marries best practices in design and construction with evidence-based health and wellness interventions. It harnesses the built environment as a vehicle to support human health, wellbeing and comfort. WELL Certified™ spaces and WELL Compliant™ core and shell developments can thus lead to a built environment that can help improve the nutrition, fitness, mood, sleep patterns and performance of its occupants. This is achieved in part by implementing strategies, programs and technologies designed to encourage healthier, more active lifestyles, as well as reducing occupant exposure to harmful chemicals and pollutants. 100% DOAS outdoor air units with energy recovery are one component that can be part of the WELL Building Standard and LEED certification strategy.

A CLOSER LOOK

DN SER IES Our DN Series DOAS effectively conditions outdoor air with efficient and sustainable technology. By enabling HVAC units to operate independently, depending on building load, our DOAS unit incorporates static-plate total energy recovery and a wide array of features and configurations. It will optimize your ventilation strategy, downsize equipment, decrease capital costs and realize significant operating savings.

LOW-LEAKAGE ISOLATION DAMPERS

ENERGY RECOVERY CORE

DOUBLE-WALL, INJECTED FOAM PANELS

INTEGRATED PROGRAMMABLE CONTROLS

RECIRCULATION DAMPER (BEHIND CORE)

INTERNAL MODULATING BYPASS ECONOMIZER

COOLING COIL, CHILLED WATER, DX, HEAT PUMP

MODULATING HOT-GAS REHEAT

HEATING SECTION ELECTRIC, GAS OR HOT WATER/STEAM COIL

54

FILTRATION

DIRECT-DRIVE FANS Shown with optional VFD motors (EC motors standard)

DN2 DN3 DN5

UNIT

Airflow Range 375-1,650 CFM 750-3,300 CFM 1,125-4,950 CFM

Installation Location Indoor/Outdoor Indoor/Outdoor Indoor/Outdoor

Airflow Orientation Vertical/Horizontal

Available Voltages 208-230V 1P (EC DN-2 only)/3P (all); 460V 3P (all); 575V (VFD only)

Unit Disconnect Single-point connection/fused (optional)

Energy Recovery RenewAire enthalpic static-plate G5

Internal Bypass of Energy Recovery Yes, modulating bypass using face and bypass dampers

CABI

NET

Wall Construction 1" or 2" double-wall, injected foam panels (2" optional)

Insulation 1" R-6.5/2" R-13.0

Panels with Thermal Break Available on 2" double-wall units

Painted Cabinets 2,500-hour salt spray rated in white, grey or custom (optional)

Isolation Dampers Low-leakage Class I dampers

SUPP

LY/E

XHAU

ST F

AN

Supply Blower High-efficiency plenum fans

Supply Fan Type Direct-drive

Supply Fan Speed Control ECM/VFD (optional)

Supply Fan Vibration Isolation Neoprene/spring (VFD only)

Supply/Exhaust Fan Motor HP (kW)

200-277V 1P 1.35 kW N/A N/A

200-240V 3P 2.70 kW 2.70 kW 2.70 kW x2

380-480V 3P 3.70 kW 3.70 kW 3.70 kW x2

575V 3P 3 HP 5 HP 5 HP x2

VFD 3 HP 5 HP 5 HP x2

Unit ESP 2" WC at 1,500 CFM 2.5" WC at 3,000 CFM 3" WC at 4,500 CFM

COOL

ING/

HE

ATIN

G Cooling Coil Direct expansion, chilled water, heat pump (optional)

Heating SectionElectric heat (SCR), indirect gas furnace (5:1, 10:1 modulation),

hot water, heat pump, steam (optional)

Hot Gas Reheat Modulating (optional)

CON

TROL

S

Economizer/Defrost Capability Modulating

Microprocessor Controller Integrated programmable controller

Control Hardware Carel c.pCO mini

Optional Communications BACnet MS/TP or IP, Modbus RTU, or TCP

Airflow Monitoring Yes

Recirculation Mode Yes (optional)

OPTI

ONS

GFCI Convenience Outlet 120 VAC, 20A (field powered)

Roof Curbs 14" height

Seismic and Wind-Rated Curbs Yes

MERV 8 (2" only), 13 and 14 Filters Available in 2" and 4"

Mist Eliminator 3/8"

Drain Overflow Switch Yes

Coil Coatings Yes

Certifications

DN MODELS AT A GLANCE

6

12

COOLING1. Chilled Water Coil

2. Chilled Water Coil

3. Direct Expansion Coil


HEATING1. Hot Water Coil

2. Steam Coil

3. Hot Water Coil

4. Steam Coil

OTHER VARIABLESFan After

All Orientations

4. For #1 to be true,Same Coil must be “NO”

ERV + CC + HC (DT)12

COOLING1. Direct Expansion &Hot Gas Reheat Coil

HEATING1. Gas


All Orientations

ERV + CC + HGRH + GH (DT)

123

COOLING1. Direct Expansion& Hot Gas Reheat Coil

HEATING1. Steam Coil OR Hot Water Coil


All Orientations

ERV + CC + HGRH + HC (DT)

1

COOLING1. Chilled Water CoilOR Direct Expansion Coil

HEATING1. Gas


All Orientations

ERV + CC + GH (DT)

1


HEATING1. Electric


All Orientations

ERV + CC + EH (DT)123


HEATING1. Steam Coil ORHot Water Coil

OTHER VARIABLESFan Before

Orientations A, C, E, G,H, L, M, R

ERV + CC + HGRH + HC (BT)

12

COOLING1. Direct Expansion &Hot Gas Reheat Coil

HEATING1. Electric


All Orientations

ERV + CC + HGRH + EH (DT)

12

COOLING1. Chilled Water Coil




HEATING1. Hot Water Coil

2. Steam Coil

3. Hot Water Coil

4. Steam Coil


Orientations A, C, E, G, H,L, M, R

4. For #1 to be true,Same Coil must be “NO”

ERV + CC + HC (BT)

1


HEATING1. Gas


All Orientations

ERV + CC + GH (BT)

12


HEATING1. Electric


All Orientations

ERV + CC + HGRH + EH (BT)

12


HEATING1. Gas


All Orientations

ERV + CC + HGRH + GH (BT)

1


HEATING1. Electric


All Orientations

ERV + CC + EH (BT)

1

COOLING1. Chilled Water Coil, Direct Expansion Coil

2. None

3. Heat Pump Coil


HEATING1. None

2. Steam Coil, Hot Water Coil

3. Heat Pump Coil

4. Hot Water Coil


All Orientations

4. For #4 to be true,Same Coil must be “YES”

ERV + CC/HC (DT)

12

COOLING1. Heat Pump & Hot GasReheat Coil OR DirectExpansion & Hot GasReheat Coil

HEATING1. None OR Heat Pump Coil



ERV + CC + HGRH (BT)

12

COOLING1. Heat Pump & Hot GasReheat Coil OR DirectExpansion & Hot GasReheat Coil

HEATING1. None OR Heat Pump Coil


All Orientations

ERV + CC + HGRH (DT)

1

COOLING1. Chilled Water Coil OR Direct Expansion Coil

2. None

3. Heat Pump Coil


HEATING1. None

2. Steam Coil ORHot Water Coil

3. Heat Pump Coil

4. Hot Water Coil



4. For #4 to be true,Same Coil must be “YES”

ERV + CC/HC (BT)

COOLINGNone

HEATINGElectric

OTHER VARIABLESFan BeforeAll Orientations

ERV + EH (BT)

COOLINGNone

HEATINGNone


ERV ONLY

COOLINGNone

HEATINGGas


ERV + GH (BT)

ERV - Energy Recovery Ventilator

EH - Electric HeaterCC - Cooling CoilHC - Heating CoilGH - Gas Heat ModuleHGRH - Hot Gas Reheat CoilBT - Blow ThruDT - Draw Thru

MODULAR DESIGNS

7

ROOFTOP APPLICATIONS SHOWN,

CONFIGURATION CAN BE APPLIED TO INDOOR UNITS

8

APPLICAT ION S T R AT E G I E STERMINAL UNIT SYSTEMS

DOAS DIRECT TO ZONE WITH TERMINAL UNITS

u Variable refrigerant flow/volume

u Fan coils

u Heat pumps

u Chilled beam

u Radiant floor heating and cooling

u Packaged terminal air conditioning

DOAS DIRECT TO ZONE WITH ROOFTOP/CENTRAL AHU




9

DOAS AIR SUPPLIED TO INTAKES OF TERMINAL UNITS


u Fan coils

u Active chilled beam

DOAS AIR SUPPLIED TO CEIL ING PLENUMS


u Fan coils

u Chilled beam




RenewAire.com 800.627.4499 LIT0121_01 (05/19)

ACCESSORIES

F ILTERS

2" or 4" MERV 13, 14 Filters

CURBS AND CURB CL IPS

Curb Clip Kit Hurricane or Seismic Rated Curbs

HEATERS

EK Series Electric Duct Heater (for indoor units only)

CONTROLS

Duct Static Pressure Sensor Wall/Duct Mount without Display

Duct Static Pressure Sensor Wall/Duct Mount

with Display

Smoke Detector Duct Mount

Occupancy Sensor Wall Mount

Occupancy Sensor Ceiling Mount

Temperature Sensor Duct Mount

Room Temperature & Humidity Sensor

CO2 Sensor Wall Mount IAQ Sensor Wall Mount CO2 Sensor Duct Mount IAQ Sensor Duct Mount

Remote Display Handheld or Wall Mount

COIL ACCESSORIES

Waterless Trap Negative Pressure Waterless Trap Positive Pressure



dn series doas - renewaire · 2019-05-29 · a closer look dn series our dn series doas effectively...

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