HEAT PUMP INSTALLATION INSTRUCTIONSHEAT PUMP SAFETY PRECAUTIONSThe following symbols and labels are used throughout this manual to indicate immediate
10TROUBLESHOOTING INFORMATIONSaturated Liquid Pressure TemperatureLiquid Pressure Saturated Liquid Temperature ºF Liquid Pressure Saturated Liquid Tem
11 Evaporator fan will not start. Blown fuse. Inspect fuse size and type. Replace, if needed. Loose connection. Inspect connection. Tighten if nee
12 System runs continuously—little cooling/heating. Shortage of refrigerant. Test for leaks. Add refrigerant. Restricted liquid line. Replace restr
13Unsatisfactory Cooling/Heating Compressor is noisy. Overcharge of refrigerant. Recover part of charge. Broken internal parts. Replace compressor
14 High suction pressure. Too much air across indoor coil. Reduce blower speed. Overcharge of refrigerant. Recover part of charge. Broken valves
15ASSISTANCE OR SERVICEIf you need further assistance, you can write to the below address with any questions or concerns:Tradewinds Distributing Compa
WPIO-259K© 2010. All rights reserved.®Registered Trademark/TM Trademark of Whirlpool, U.S.A.,Manufactured under license by Tradewinds Distributing Com
2Important Note to the Owner Regarding Product WarrantyYour warranty certificate is supplied as a separate document with the unit installed by your co
3SAFE REFRIGERANT HANDLINGWhile these items will not cover every conceivable situation, they should serve as a useful guide.REFRIGERANT LINESUse only
4Mounting the heat pump above the evaporator coil will require an oil trap in the suction line. Install one oil trap at the evaporator for a height di
5System EvacuationCondensing unit liquid and suction valves are closed to contain the charge within the unit. The unit is shipped with the valve stems
6System Composite Diagram—Heat Pumps 10 KW and Below System Composite Diagram—Heat Pumps Above 10 KW NOTES: EHR—Emergency Heat Relay (optional)1. Ou
7SYSTEM START-UP Power must be supplied to the 18 SEER outdoor units containing ECM motors before the power is applied to the indoor unit. Sending a
8Fixed Orifice1. Purge the gauge lines. 2. Connect the service gauge manifold to the base-valve service ports. Run system at least 10 minutes to allow
92-Stage ApplicationRun the condensing unit on low-stage cooling for 10 minutes until refrigerant pressures stabilize. Follow the guidelines and metho
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