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Whirlpool W4GH8 Installation Instructions Manual

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Whirlpool W4GH8 User Manual
Whirlpool W4GH8 User Guide
Whirlpool W4GH8 Online Manual

Text of Whirlpool W4GH8 User Guide:

  • 48656D008 © 2008. All rights reserved. ®Registered Trademark/TM Trademark of Whirlpool, U.S.A., Manufactured under license by Tradewinds Distributing Company, LLC., Coconut Grove, Florida 5/08 Printed in U.S.A.

  • 3 Minimum Clearances Line Set Isolation The following illustrations demonstrate procedures which ensure proper refrigerant line set isolation. Installing Horizontal Runs This shows how to install line sets on horizontal runs. NOTES: ■ To hang line set from joist or rafter, use either metal strapping material or anchored heavy nylon wire ties. ■ Strap the vapor line to the floor joist or r

  • Whirlpool W4GH8, 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 addit

  • Whirlpool W4GH8, 8 Suction Line Sizes Installations exceeding 100 ft (30.5 m) are not recommended. Liquid Line Sizes Installations exceeding 100 ft (30.5 m) are not recommended. Charge Refrigerant Lines NOTE: Refrigerant lines must be charged by a licensed, EPA certified refrigeration technician in accordance with established procedures. The outdoor condensing unit should be charged during warm weather. However, applications arise in which charging must occur in the colder months. The method of charging is determined by the system’s refrigerant expansion device and the outdoor ambient temperature. Choose one of the following charge me

  • 5 Flush Refrigerant Lines Refrigerant lines must be flushed by a licensed, EPA certified 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 wa

  • Whirlpool W4GH8, 2 Tools and Parts Gather the required tools and parts before starting installation. Read and follow the instructions provided with any tools listed here. Tools Needed Parts Needed Check local codes and HVAC supplier. Check existing electrical supply, and read “Electrical Requirements,” “Location Requirements,” “System Requirements” and “Connect Refrigerant Lines.” System Requirements Heat pump system matches are derived from actual laboratory testing of matched systems. It is recommended that only matching equipment be used to ensure proper operation and efficient performance. ■ The designed s

  • Whirlpool W4GH8, 4 Electrical Requirements NOTE: All outdoor wiring must be suitable for outdoor use. Use copper conductors only. ■ All field wiring must be done in accordance with National Electrical Code requirements, applicable requirements of UL, 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. See the wiring diagrams in “Make Electrical Connections.” INSTALLATIO

  • Whirlpool W4GH8, 10 Make Electrical Connections IMPORTANT: ■ 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. See wiring diagrams later in this section. ■ Install an adequately-sized branch circuit disconnect, according to the NEC, within sight of and readily accessible from heat pump. ■ The cable or conduit and fittings connected from the disconnect to the heat pump shall be rated for outdoor use. Single Phase Electrical Connections Refer to “Outdoor Unit Typical Wiring Diagram.” 1. Disc

  • Whirlpool W4GH8, 17 24 VAC Power Wiring The diagnostic module requires a constant nominal 24 VAC power supply. The wiring to the module’s R and C terminals must be directly from the indoor unit or thermostat. The module cannot be powered by R and C terminals on the defrost board without experiencing nuisance alerts. Thermostat Demand Wiring The diagnostic module requires a thermostat demand signal to operate properly. The thermostat demand signal input, labeled Y on the module, should always be connected to the compressor contactor coil so that when the coil is energiz

  • Whirlpool W4GH8, 7 Thermal Expansion Valve Installation To install the thermal expansion valve: 1. Separate the distributor assembly. 2. If a piston orifice is installed, remove the piston orifice and old Te fl on ® seal and discard. 3. Insert nozzle end of the thermal expansion valve along with a new Teflon ® seal into the distributor. 4. Tighten to 20 to 30 ft/lbs. Use backup wrench on all wrench flats. NOTE: Overtightening may crush the Teflon ® seal and cause a leak. 5. Attach liquid line portion of distributor assembly along with new Teflon ® seal to the inlet of the thermal expansion valve. 6. Tighten to 20 to 30

  • Whirlpool W4GH8, 11 4. Connect ground wire to ground lug. 5. Connect low voltage circuit. Typical Wiring Connection (low voltage circuit) 6. Replace control box cover. 7. Reconnect power. A. Ground lug B. Field supply ground wire C. 208/230 volt field supply wires T1T2 L1L2 L1L2 C A B A. Do not connect C (common) connection between indoor unit and thermostat except when required by the indoor thermostat. Refer to the thermostat installation instructions. B. C (common) connection between indoor unit and outdoor unit required for proper operation. Without Auxiliary Heat With Auxiliary Heat Power Indoor Unit Thermostat

  • Whirlpool W4GH8, 15 Troubleshoot the Defrost System The defrost control is equipped with a set of pins (labeled TEST on control circuit board) to aid in troubleshooting the defrost system. Connecting the test pins speeds up the defrost cycle time by a factor of 256. 1. Disconnect power. 2. Remove control box cover. 3. Connect the test pins on the defrost control using a test jumper wire. NOTE: If the outdoor temperature is above 32°F (0ºC), connect the defrost sensor terminals using a test jumper wire. See “Defrost Control Board” in “Adjust Defro

  • Whirlpool W4GH8, 13 SEQUENCE OF OPERATION Cooling Cycle Upon cooling demand, the thermostat closes circuit R to O and Y. Closing R to O and Y energizes the reversing valve for cooling operation and closes the heat pump contactor, starting the compressor and outdoor fan. The thermostat automatically closes R to G circuit, which also brings on the indoor fan at the same time. Upon satisfying cooling demand, the thermostat will open the above circuits and open the main contactor, stopping the compressor and outdoor fan. If the indoor unit is equipped with a delay timer, the blower will continue to operate for 60 to 90 seconds, which improves system ef

  • Whirlpool W4GH8, 14 Pressure Switch Circuit The defrost control includes LO-PS terminals to connect an optional low pressure (loss of charge pressure) switch. A high pressure switch (optional) can be connected to the HI PS terminals. See “Defrost Control Board” in the “Adjust Defrost System” section. During a single demand cycle, the defrost control will lock out the heat pump after the fifth time that the circuit is interrupted by any pressure switch wired to the control board. In addition, the diagnostic LEDs will indicate a locked-out pressure switch after the fifth occurrence of an open pressure switch. See Defrost Control Board Diag

  • Whirlpool W4GH8, 6 Orifice 7. Remove the caps from the suction and liquid pressure taps. 8. Remove the valve cores. 9. Connect an R-22 cylinder with clean refrigerant to the suction pressure tap. 10. Connect the R-22 gauge set to the liquid line service valve and connect a recovery machine with an empty recovery tank to the gauge set. 11. Set the recovery machine for liquid recovery and start the recovery machine in accordance with the manufacturer’s instructions 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

  • Whirlpool W4GH8, 18 LIMITED WARRANTY Applies in U.S.A. and Canada Only FAILURE TO MAINTAIN YOUR EQUIPMENT WILL VOID THIS WARRANTY COVERED EQUIPMENT The following Whirlpool ® and Whirlpool Gold ® (G) cooling and heating equipment is covered by the Limited Warranty: Condensing Units: W2C3, W2C4, W2GC3, W4GC3, W4GC4, W4GC6, W4GC8 Heat Pumps: W2H3, W2H4, W2GH3, W4GH3, W4GH4, W4GH6, W4GH8 Gas Furnaces: WFAT, WFAR, WFCT, WFCC, WGFA, WGFB, WFAU, WGFD, WGFE Air Handlers: WAHMS, WAHMV Electric Furnaces: WMB Evaporator Coils: WEC1P, WEM1P, WEU1P, WEH1P Package Equipment: W2PG3, W2PH3, W2PC3, W4PG4, W4PH4 FIVE (5) YEAR COV

  • Whirlpool W4GH8, 9 6. Compare the sub-cooling value with those shown in Sub- cooling Values for Thermal Expansion Valve Systems chart. ■ If sub-cooling is greater than shown, recover some refrigerant. ■ If sub-cooling is less than shown, add some refrigerant. Charge Using Approach Method (Thermal Expansion Valve Systems)—Outdoor Temperatures 65°F (18ºC) or Above Use this method if charging a Thermal Expansion Valve system when the outdoor ambient temperature is 65ºF (18ºC) or above. NOTES: ■ The following procedure is intended as a general guide. ■ Use on Thermal Expansion Valve systems only. ■

  • 19 EXCLUDED COMPONENTS The following components are not covered by this warranty: cabinets, cabinet pieces, air filters, dryers, refrigerant, refrigerant line sets, belts, wiring, fuses, oil nozzles and unit accessories. REPAIRS All repairs of covered components must be made with authorized service parts by a licensed service dealer or contractor. Labor charges are not c

  • Whirlpool W4GH8, 16 Flash Codes LED Status Fault Description Troubleshooting Information Power (Green) Module has power. ■ Supply voltage is present at module terminals. Trip (Red) Thermostat demand signal Y1 is present, but the compressor is not running. ■ Compressor protector is open. ■ Outdoor unit power disconnect is open. ■ Compressor circuit breaker or fuse(s) is open. ■ Broken wire or connector is not making contact. ■ Low pressure switch is open, if present in system. ■ Compressor contactor has failed to open. Alert (Yellow) Flash Code 1 Long Run Time: Compressor is running extremely long run cycles. NOTE: Not applicab

  • Whirlpool W4GH8, 12 Outdoor Unit Typical Wiring Diagram Complete Installation 1. Operate the heat pump for a period of at least 15 minutes to allow for pressures and temperatures to stabilize. 2. If heat pump does not appear to be functioning correctly, have heat pump checked by a person certified by the EPA to handle refrigerant. FCH R S C C Equipment Ground Crankcaser Heater L2 208-230/60/1 L1 Compressor Contactor BK Y R R Compressor Ground Lug Ground L2 L1 208-230/60/1 Dual Capacitor R Compressor Contactor BK Compressor Crankcase Heater R Y SR Crankcase Thermostat C R W1 O Y1 W1 C L R O Y1 Fan O-OUT LO

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