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AIR/WATER HEAT PUMPS FOR SWIMMING POOLS
MODELS AW631, 831,1231, 1531
The Calorex ‘31’ range of air/water heat pumps is for swimming pool applications and consists
of 4 models. Heat pumps in this manual are designed to heat pool water and spas within the
range of 10°C to 40°C. Standard units are suitable for outdoor pools operating in ambient
temperatures from 7°C to 40°C. Reverse Cycle Defrost models are available with operation
down to -15ºC, these machines are suitable for heating indoor pools or spas all year round.
The water heat exchanger is a full flow type, manufactured from titanium, which is a highly
corrosion resistant material. The heat pumps are suitable for use in fresh water and salt
water pools.The compressors fitted in the heat pumps are the scroll type and are known for
quiet running. With these features the heat pump is designed to have a long, trouble free life.
All units have integral safety devices to protect the heat pump from internal and external
faults. Indicator lamps indicate operating mode. An adjustable digital thermostat controls
water temperature. Also a 6 minute cycle time delay is incorporated.
