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HEAT PUMP INSTALLATION INSTRUCTIONS

HEAT PUMP SAFETY

INSTALLATION REQUIREMENTS

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

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.

Table of Contents

HEAT PUMP SAFETY.....................................................................1

INSTALLATION REQUIREMENTS ................................................1

Tools and Parts ............................................................................2
System Requirements..................................................................2
Location Requirements ................................................................2
Electrical Requirements ...............................................................4
Inspect Shipment .........................................................................4
Flush Refrigerant Lines ................................................................4
Connect Refrigerant Lines ...........................................................6
Make Electrical Connections .......................................................9
Complete Installation .................................................................11

SEQUENCE OF OPERATION ......................................................12

Cooling Cycle .............................................................................12
Heating Cycle .............................................................................12
Defrost Cycle..............................................................................12
Adjust Defrost System ...............................................................13
Troubleshoot the Defrost System ..............................................14

TROUBLESHOOTING ..................................................................15

System Diagnostic Module ........................................................15

SYSTEM MAINTENANCE ............................................................17

ASSISTANCE OR SERVICE .........................................................17

Accessories ................................................................................17

WARRANTY ..................................................................................18

Whirlpool Gold

 Model W4GH6  

48488A006

You can be killed or seriously injured if you don't immediately 
 

You

 

can be killed or seriously injured if you don't follow 

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.

Your safety and the safety of others are very important.

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:

follow instructions.

instructions.

DANGER

WARNING

Summary of Contents for GOLD W4GH6

Page 1: ...RATION 12 Cooling Cycle 12 Heating Cycle 12 Defrost Cycle 12 Adjust Defrost System 13 Troubleshoot the Defrost System 14 TROUBLESHOOTING 15 System Diagnostic Module 15 SYSTEM MAINTENANCE 17 ASSISTANCE OR SERVICE 17 Accessories 17 WARRANTY 18 Whirlpool Gold Model W4GH6 48488A006 You can be killed or seriously injured if you don t immediately You can be killed or seriously injured if you don t follo...

Page 2: ...o prevent compressor damage as a result of slugging Use only polyol ester oils if oil must be added to the system Mineral oil is not compatible with refrigerant Indoor System Thermal Expansion Valve W4GH6 units are designed for use with thermal expansion valve systems only The thermal expansion valve must be ordered separately from the manufacturer LocationRequirements This heat pump is designed t...

Page 3: ... vapor line only B Floor joist or roof rafter C Anchored heavy nylon wire tie around vapor line only D Tape or wire tie E Metal sleeve F Tape or anchored heavy nylon wire tie G Strap the vapor line to the floor joist or roof rafter at 8 intervals then strap the liquid line to the vapor line 48 Overhead Clearance Discharge Air To Power Supply To Indoor Unit To Indoor Coil 30 Service Access Clearanc...

Page 4: ...d refrigerant technician in accordance with established procedures NOTES R 410A outdoor systems are not recommended for use with indoor systems that have used R 22 as the refrigerant However if this unit is being matched with an approved line set or indoor coil which was previously charged with R 22 refrigerant or if it is being matched with a coil which was manufactured before January of 1999 the...

Page 5: ...nstructions provided with the recovery system being used 12 Open the gauge set valves to allow the recovery machine to run until a vacuum level less than 0 Hg gauge pressure is established in the existing system line set and indoor coil 13 Invert the cylinder of clean R 22 and open its valve to allow liquid refrigerant to flow into the system through the vapor line valve 14 After all of the liquid...

Page 6: ...with the refrigerant lines during the installation process Sharp bends or possible kinking in the lines will cause a reduction in performance To avoid contamination of the refrigerant system do not remove the caps from the lines or system connection points until connections are ready to be completed Install Thermal Expansion Valve W4GH6 heat pumps are designed for use with thermal expansion valve ...

Page 7: ...sture then disconnect the vacuum pump 11 Open the suction and liquid service valves fully 12 Insulate the suction line with refrigerant line insulation material of or more wall thickness 13 Pack insulating material around refrigerant lines where they penetrate the structure to protect the lines and to minimize vibration transmission Refrigerant Charge Refrigerant lines must be connected by a licen...

Page 8: ... 95ºF 353 151 349 151 356 148 352 146 105ºF 403 153 397 153 407 150 405 148 115ºF 460 155 461 157 466 152 459 150 Cooling 2nd Stage High Capacity 65ºF 240 143 239 139 244 140 241 134 75ºF 279 145 278 141 283 141 280 136 85ºF 322 147 322 143 326 144 324 137 95ºF 371 149 367 146 374 147 373 138 105ºF 423 151 426 148 427 148 425 142 115ºF 485 154 489 151 491 151 486 146 Heating 1st Stage Low Capacity...

Page 9: ...iring Diagram Single Phase 208 230 Volt 1 Disconnect power 2 Remove control box cover 3 Connect the field supply wires L1 and L2 to contactor terminals L1 and L2 Btu h Line Set Size in OD 24 000 36 000 48 000 60 000 1 1 1 Line Set Length Less than 25 ft 25 ft Over 25 ft and up to 50 ft Btu h Line Set Size in OD 24 000 36 000 48 000 60 000 Line Set Length Less than 25 ft 25 ft Over 25 ft and up to ...

Page 10: ...ween indoor unit and outdoor unit required for proper operation NOTE Some connections may not apply Refer to specific thermostat and indoor unit Without Auxiliary Heat With Auxiliary Heat Power Indoor Unit Thermostat 1st Stage Aux Heat Indoor Blower Reversing Valve R W1 G O R C G Outdoor Unit C Y1 R W1 O C Y1 Power Common 1st Stage Aux Heat W1 W2 W3 Y2 Compressor Y2 Y1 Y2 If Applicable Power Indoo...

Page 11: ...Contactor BK Compressor Crankcase Heater PR BK OR R Y S R Crankcase Thermostat C R W1 O Y1 W1 C L R O Y1 Fan O OUT LO PS DF HI PS Common Y1 OUT Defrost Control Reversing Valve Defrost Thermostat Fan Defrost Control BK Crankcase Thermostat W1 C L R O Y1 Fan O OUT LO PS DF HI PS Common Y1 OUT Defrost Control Thermostat Thermostat Compressor Contactor Defrost Switch L1 BK C R W1 O Y1 Y2 Y1 C L Y2 R L...

Page 12: ...at senses 42ºF or cooler the thermostat contacts close and send a signal to the defrost control board to start the defrost timing It also terminates defrost when the liquid line warms up to 70ºF Defrost Control The defrost control board includes the combined functions of the time temperature defrost control defrost relay diagnostic LEDs and terminal strip for field wiring connections See Defrost C...

Page 13: ... TEST mode Defrost cycle 90 second start up period First 90 seconds after the reversing valve switches heat cool modes NOTE If the TEST pins are jumpered and the 5 minute delay is being bypassed the LO PS terminal signal is not ignored during the 90 second start up period AdjustDefrostSystem Defrost Control Board Optional high pressure switch connections NOTE To add the pressure switch remove the ...

Page 14: ...oard in the Adjust Defrost System section 4 Replace control box cover 5 Reconnect power 6 Start system in heating operation 7 Time the defrost test cycle as determined by the chart After the corresponding defrost cycle time from the chart below has elapsed the reversing valve should shift to defrost mode and the outdoor fan should stop After 2 seconds of defrost operation the reversing valve shoul...

Page 15: ...umber count the number of consecutive flashes Refer to the Flash Codes chart for information on the flash codes Every time the module powers up the last Alert LED flash code that occurred prior to shutdown is displayed for 60 seconds The module will continue to display the previous flash code until the condition returns to normal or 24 VAC is removed from the module Trip and Alert LED s flashing a...

Page 16: ...earings are seized Alert Yellow Flash Code 5 Open circuit Outdoor unit power disconnect is open Compressor circuit breaker or fuse s is open Compressor contactor has failed to open High pressure switch is open and requires manual reset Open circuit in the compressor supply wiring or connections Unusually long compressor protector reset time due to the extreme ambient temperature Compressor winding...

Page 17: ...e Indication Recommended Troubleshooting Action Green LED is not on module does not power up Determine if both R and C module terminals are connected See 24 VAC Power Wiring section for R and C wiring Green LED intermittent module powers up only when the compressor runs Determine if R and Y terminals are wired in reverse See 24 VAC Power Wiring earlier in this section for R and C wiring Trip LED i...

Page 18: ...18 ...

Page 19: ... help you obtain assistance or service if you ever need it Dealer name____________________________________________________ Address ________________________________________________________ Phone number__________________________________________________ Model number __________________________________________________ Serial number __________________________________________________ Installation date __...

Page 20: ...48488A006 2006 All rights reserved Registered Trademark TM Trademark of Whirlpool U S A Manufactured under license by Tradewinds Distributing Company LLC Coconut Grove Florida 6 06 Printed in U S A ...

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