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Whirlpool W2H3 Installation Instructions Manual

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HEAT PUMP INSTALLATION INSTRUCTIONS
HEAT PUMP SAFETY.....................................................................1
INSTALLATION REQUIREMENTS ................................................1
Tools and Parts ............................................................................2
System Requirements..................................................................2
Location Requirements................................................................2
Electrical Requirements ...............................................................3
INSTALLATION INSTRUCTIONS ..................................................3
Inspect Shipment .........................................................................3
Connect Refrigerant Lines ...........................................................4
Charge Refrigerant Lines .............................................................5
Make Electrical Connections .......................................................6
We have provided many important safety messages in this manual and on your appliance. Always read and obey all safety
messages.
This is the safety alert symbol.
This symbol alerts you to potential hazards that can kill or hurt you and others.
All safety messages will follow the safety alert symbol and either the word "DANGER" or "WARNING."
These words mean:
WARNING
All safety messages will tell you what the potential hazard is, tell you how to reduce the chance of injury, and tell you what can
happen if the instructions are not followed.
These instructions are intended as a general guide only for use by
qualified persons and do not supersede any national or local
codes in any way. The installation must comply with all state and
local codes as well as the National Electrical Code.
Whirlpool
®
Models W2H3 and W2H4
506112-01

HEAT PUMP SAFETY

Your safety and the safety of others are very important.
DANGER

INSTALLATION REQUIREMENTS

Table of Contents

Complete Installation....................................................................7
SEQUENCE OF OPERATION ........................................................8
Cooling .........................................................................................8
Heating .........................................................................................8
Defrost Cycle................................................................................8
Adjusting Defrost System.............................................................9
Troubleshoot the Defrost System ..............................................10
SYSTEM MAINTENANCE ............................................................10
ASSISTANCE OR SERVICE .........................................................10
Accessories ................................................................................10
WARRANTY ..................................................................................11
You can be killed or seriously injured if you don't immediately
follow instructions.
You can be killed or seriously injured if you don't follow
instructions.
The heat pump is designed and approved for outdoor use
only.
The heat pump must be installed with no ductwork in the
airstream. The outdoor fan is not designed to operate against
any additional static pressure.

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Table of Contents
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  Summary of Contents for Whirlpool W2H3

  • Page 1: Table Of Contents

    The heat pump must be installed with no ductwork in the local codes as well as the National Electrical Code. airstream. The outdoor fan is not designed to operate against any additional static pressure. Whirlpool ® Models W2H3 and W2H4 506112-01...
  • Page 2: Tools And Parts

    Tools and Parts Gather the required tools and parts before starting installation. Parts Needed Read and follow the instructions provided with any tools listed Check local codes and HVAC supplier. Check existing electrical here. supply, and read “Electrical Requirements,” “Location Requirements,”...
  • Page 3: Electrical Requirements

    Electrical Requirements All field wiring must be done in accordance with National Electrical Code requirements, applicable requirements of UL, WARNING or local codes, where applicable. Electrical wiring, disconnect means and over-current protection are to be supplied by the installer. Refer to the rating plate for the maximum over-current protection, minimum circuit ampacity, and operating voltage.
  • Page 4: Connect Refrigerant Lines

    Connect Refrigerant Lines Refrigerant lines must be connected by a licensed, EPA certified 13. Pack insulating material around refrigerant lines where they refrigerant technician in accordance with established procedures. penetrate the structure to protect the lines and to minimize vibration transmission. IMPORTANT: Connecting refrigerant lines must be clean, dehydrated, refrigerant-grade copper lines.
  • Page 5: Charge Refrigerant Lines

    ºF 6. When pressures have stabilized, use a digital thermometer to record the liquid and suction line temperatures. Model W2H3 W2H4 7. Use a digital thermometer to record the outdoor ambient temperature. NOTE: The outdoor temperature will determine which charging method to use.
  • Page 6: Make Electrical Connections

    Make Electrical Connections 3. Connect the field supply wires L1 and L2 to contactor terminals L1 and L2. WARNING 4. Connect ground wire to ground lug. Electrical Shock Hazard Electrically ground condensing unit or heat pump. Connect ground wire to ground lug. Use copper wire for supply connection.
  • Page 7: Complete Installation

    Outdoor Unit Typical Wiring Diagram Outdoor Dual Defrost Control Capacitor Thermostat Compressor Pressure Switch (if used) COMMON Crankcase Heater Compressor (if used) Contactor High Pressure Switch (if used) Ground Ground Thermostat Reversing Valve Defrost Defrost Control Thermostat Compressor Compressor Reversing Contactor Line voltage - Field Valve...
  • Page 8: Sequence Of Operation

    SEQUENCE OF OPERATION Defrost Thermostat Cooling Upon cooling demand, the thermostat closes circuit R to O and Y. The defrost thermostat is located on the liquid line between the Closing R to O and Y energizes the reversing valve for cooling check/expansion valve and the distributor.
  • Page 9: Adjusting Defrost System

    Pressure Switch Circuit The defrost control incorporates a pressure switch circuit that The heat pump will remain locked out until the switch resets or is allows the application of an optional high pressure switch. See reset. “Defrost Control Board” in “Adjusting Defrost System.” During a Remove the factory-installed jumper before connecting the demand cycle, the defrost control will lock out the heat pump if optional high pressure switch to the control board.
  • Page 10: Troubleshoot The Defrost System

    Please include a daytime phone number in your correspondence. address with any questions or concerns: ® Whirlpool Home Cooling and Heating Accessories 14610 Breakers Drive ® To order accessories contact your Whirlpool Home Cooling and Jacksonville, FL 32258 Heating dealer.
  • Page 11: Limited Warranty

    All terms of this warranty must be followed. ® Heat Exchanger Availability: If a replacement heat exchanger is no longer available for a unit covered by this warranty, Whirlpool Home Cooling and Heating will allow a credit toward the purchase of an equivalent furnace (at the current suggested distributor’s cost).
  • Page 12 Accident, or neglect or unreasonable use or operation of the equipment including operation of electrical equipment at voltages other than the range specified on the unit nameplate (includes damages caused by brownouts) c) Modification, change or alteration of the equipment, except as directed in writing by Whirlpool ®...

This manual is also suitable for:

W2h4