Johnson Controls JRE Series Installation Operation & Maintenance

Johnson Controls JRE Series Installation Operation & Maintenance

Water source heat pumps

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Water Source Heat Pumps
Installation, Operation, Maintenance
Supersedes:
Form: 14808-NOM1-0820
JRE-Series
Water Source Heat Pump
MODELS JRE
3-20 Tons
97B0081N06
Issue Date: August 19, 2020

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Summary of Contents for Johnson Controls JRE Series

  • Page 1 Water Source Heat Pumps Installation, Operation, Maintenance Supersedes: Form: 14808-NOM1-0820 JRE-Series Water Source Heat Pump MODELS JRE 3-20 Tons 97B0081N06 Issue Date: August 19, 2020...
  • Page 2: Table Of Contents

    W A T E R - S O U R C E H E A T P U M P S JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Table of Contents Model Nomenclature General Information...
  • Page 3: Model Nomenclature

    A C U R B A A A Model Type ACURB = Curb Standard S = Standard Series Type RT = JRE Series Not Used Revision Level Curb Options G = Current Revision A = Knocked Down B = Welded...
  • Page 4: General Information

    W A T E R - S O U R C E H E A T P U M P S JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 General Information Inspection - Upon receipt of shipment at the job site, 5.
  • Page 5: Jre036-072 Dimensional Data

    T H E S M A R T S O L U T I O N F O R E N E R G Y E F F I C I E N C Y JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 JRE036-072 Dimensional Data I n s t a l l a t i o n , O p e r a t i o n , M a i n t e n a n c e...
  • Page 6: Jre096-144 Dimensional Data

    W A T E R - S O U R C E H E A T P U M P S JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 JRE096-144 Dimensional Data I n s t a l l a t i o n , O p e r a t i o n , M a i n t e n a n c e...
  • Page 7: Jre168-240 Dimensional Data

    T H E S M A R T S O L U T I O N F O R E N E R G Y E F F I C I E N C Y JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 JRE168-240 Dimensional Data I n s t a l l a t i o n , O p e r a t i o n , M a i n t e n a n c e...
  • Page 8: Standard Roof Curb

    W A T E R - S O U R C E H E A T P U M P S JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Standard Roof Curb Model JRE036/48/60/72...
  • Page 9: Standard Curb With Vibration Isolation

    T H E S M A R T S O L U T I O N F O R E N E R G Y E F F I C I E N C Y JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Standard Curb with Vibration Isolation Model JRE036/48/60/72...
  • Page 10: Side Discharge Supply & Return Roof Curb

    W A T E R - S O U R C E H E A T P U M P S JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Side Discharge Supply &...
  • Page 11: Side Discharge Supply & Return Isolation Curb

    T H E S M A R T S O L U T I O N F O R E N E R G Y E F F I C I E N C Y JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Side Discharge Supply &...
  • Page 12: Installation

    Only P.O.E. oil that has been verified as moisture free can be added to the system. Consult factory for more Note: Refer to previous pages for actual unit dimensions. information. Figure 1: JRE Curb Installation JRE Series Unit Flashing Roof Gasket...
  • Page 13: Piping Installation

    T H E S M A R T S O L U T I O N F O R E N E R G Y E F F I C I E N C Y JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Piping Installation Condensate Piping - Install a condensate trap at each �...
  • Page 14: Water Quality Standards

    20 mesh] size. The Johnson Controls Water Quality Table provides water quality requirements for Johnson Controls coaxial heat exchangers. The water should be evaluated by an independent testing facility comparing to this Table and when properties are outside of these requirements, an external secondary heat exchanger must be used to isolate the heat pump heat exchanger from the unsuitable water.
  • Page 15: Electrical Wiring

    T H E S M A R T S O L U T I O N F O R E N E R G Y E F F I C I E N C Y JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Electrical Wiring �...
  • Page 16: Electrical - Low Voltage Wiring

    Figure 3 to change the setting to 10°F [-12.2°C] refrigerant temperature, a more suitable temperature DXM2 PCB 5 1/2" when using an antifreeze solution. All Johnson Controls JW3-LT1 jumper should be clipped for low temperature WSHP units operating with entering water temperatures Note: There is only...
  • Page 17 24VAC external solenoid valve. Figures 5 and 6 illustrate All other DIP combinations are invalid typical slow closing water control valve wiring for Taco Accessory Relay 2 Configuration 500 series (Johnson Controls P/N AVM) and Taco SBV series valves. Slow closing valves take approximately DIP 2.4 DIP 2.5 DIP 2.6...
  • Page 18 W A T E R - S O U R C E H E A T P U M P S JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Electrical –...
  • Page 19: Electrical - Thermostat Wiring

    IOM and or unit wiring diagram. Practically any heat pump thermostat will work Notes: with Johnson Controls units, provided it has the correct 1) ECM automatic dehumidification mode operates with dehumidification airflows in the cooling mode when the dehumidification output from thermostat is active.
  • Page 20: Electrical Data

    W A T E R - S O U R C E H E A T P U M P S JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Electrical Data Table 3: JRE Electrical Data Total...
  • Page 21: Secondary Pump

    T H E S M A R T S O L U T I O N F O R E N E R G Y E F F I C I E N C Y JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Electrical Data –...
  • Page 22: Twd - Units With Mpc Ddc, Auxiliary Diagram

    W A T E R - S O U R C E H E A T P U M P S JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Typical Wiring Diagram –...
  • Page 23: Twd - Units With Lon Ddc, Auxiliary Diagram

    T H E S M A R T S O L U T I O N F O R E N E R G Y E F F I C I E N C Y JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Typical Wiring Diagram –...
  • Page 24: Twd - Units With Economizer Option

    W A T E R - S O U R C E H E A T P U M P S JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Typical Wiring Diagram –...
  • Page 25: Twd - Single Compressor, Dxm2

    T H E S M A R T S O L U T I O N F O R E N E R G Y E F F I C I E N C Y JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Typical Wiring Diagram –...
  • Page 26: Twd - Typical Two Compressor Unit/Dxm2

    W A T E R - S O U R C E H E A T P U M P S JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Typical Wiring Diagram –...
  • Page 27: Nomenclature - Condenser Hot Water Reheat Option

    T H E S M A R T S O L U T I O N F O R E N E R G Y E F F I C I E N C Y JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Nomenclature –...
  • Page 28: Condenser Hot Water Reheat - Benefits And Applications

    R e v . : A u g u s t 1 9 , 2 0 2 0 Condenser Hot Water Reheat – Benefits and Applications Modulating Reheat Option - Johnson Controls’ With HGR, cooler water temperatures produce cooler condenser hot water reheat provides an innovative...
  • Page 29 93.8 the moisture removal capability (latent capacity) of a 30.0 145.1 92.2 6.53 167.4 22.2 114.3 9.77 81.0 94.4 Johnson Controls JRE120 is 36.4 Mbtuh as shown in 15.0 139.5 92.7 7.61 165.4 18.3 120.4 9.90 86.6 95.8 figure 10.
  • Page 30: Condenser Hot Water Reheat - Sequence Of Operation

    (dehumidification), and - 2nd Stage Cooling heating. The cooling/heating modes are like any other - 1st Stage Heating Johnson Controls WSHPs. The reversing valve (“O” - 2nd Stage Heating signal) is energized in cooling, along with the compressor - Reheat Mode contactor(s) and blower relay.
  • Page 31 T H E S M A R T S O L U T I O N F O R E N E R G Y E F F I C I E N C Y JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Condenser Hot Water Reheat –...
  • Page 32: Blower Performance Data - Units W/ Condenser Hot Water Reheat

    W A T E R - S O U R C E H E A T P U M P S JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Blower Performance Data –...
  • Page 33: Flushing/Purging Units W/ Condenser Hot Water Reheat

    T H E S M A R T S O L U T I O N F O R E N E R G Y E F F I C I E N C Y JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Flushing/Purging Units w/ Condenser Hot Water Reheat When flushing/purging units equipped with Condenser De-energize the valve by removing the red wire from the...
  • Page 34: Unit Commissioning & Operating Conditions

    W A T E R - S O U R C E H E A T P U M P S JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Unit Commissioning &...
  • Page 35: Start-Up Preparation

    T H E S M A R T S O L U T I O N F O R E N E R G Y E F F I C I E N C Y JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Start-Up Procedure 10.
  • Page 36: Blower Adjustment

    W A T E R - S O U R C E H E A T P U M P S JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Blower Adjustments �...
  • Page 37: Tensioning V-Belt Drives

    T H E S M A R T S O L U T I O N F O R E N E R G Y E F F I C I E N C Y JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Tensioning V-Belt Drive General Rules of Tensioning DEFLECTION =...
  • Page 38: Unit System Checkout

    W A T E R - S O U R C E H E A T P U M P S JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Unit System Checkout •...
  • Page 39: Unit Start-Up

    T H E S M A R T S O L U T I O N F O R E N E R G Y E F F I C I E N C Y JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Unit Start-Up 3.
  • Page 40: Start-Up Sheet Log

    W A T E R - S O U R C E H E A T P U M P S JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Start-Up Sheet Log Installer: Complete unit and system checkout and follow unit start-up procedures in the IOM.
  • Page 41: Preventive Maintenance

    Maintenance Procedures: Perform the maintenance Fan Motors: Lubricate fan motors annually. All procedures outlined below periodically as indicated. Johnson Controls Rooftop Units are fully lubricated at the factory. Do not oil during installation. � WARNING! � Conduct Amperage checks annually. Amp draw should...
  • Page 42 W A T E R - S O U R C E H E A T P U M P S JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Notes I n s t a l l a t i o n , O p e r a t i o n , M a i n t e n a n c e...
  • Page 43 T H E S M A R T S O L U T I O N F O R E N E R G Y E F F I C I E N C Y JRE - Series R e v . : A u g u s t 1 9 , 2 0 2 0 Notes I n s t a l l a t i o n , O p e r a t i o n , M a i n t e n a n c e...
  • Page 44: Revision History

    97B0081N06 Johnson Controls works continually to improve its products. As a result, the design and specifications of each product at the time for order may be changed without notice and may not be as described herein. Please contact Johnson Controls’ Customer Service Department at 1-877-329-7430 for specific information on the current design and specifications.

This manual is also suitable for:

Jre036-072Jre096-144Jre168-240

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