COLD WEATHER OPERATION
MODERATE CLIMATE: Heater operation can con- tinue during short term cold spells. When temperatures are below freezing flow, (continuous pump operation) must be maintained.
CAUTION: Do not use the heater to maintain water temperatures just above freezing or for freeze protec- tion. When heaters are used during freezing weather, care must be taken to avoid freeze ups. Continuous pump operation is a must. Additional protection may be required. The heater is not warranted against freeze ups.
COLD CLIMATE: Prolonged operation with water temperatures below 50°F is not recommended. When starting the heater with pool temperatures below 50°F, operate the heater continuously until higher tempera- tures are reached. Operating the heater for prolonged periods with pool water below 50° can seriously dam- age the heater, and is not covered by the warranty. For cold climate areas please follow the winterizing proce- dures listed .
WINTERIZING THE POOL & SPA HEATER
When heaters installed outdoors in freezing climate areas are to be shut down for the winter, observe the following
1.Turn off gas valve, manual gas valve, and electri- cal supply to the heater.
2.Open drain cock located on the inlet/outlet header, (under water pipes). Tilt heater to completely
drain all the water from the heat exchanger.
PRESSURE SWITCH
COMPRESSION FITTING
RETURN HEADER
Fig. # 8955
3.Disconnect compression fittings from the pressure switch and return header that connects to the 1/4" copper tube and allow the tube to drain.
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