Heat & Cool Heat Pumps

A Pool Heater & Chiller Built In One!
Pool Heat/Cool units have a unique reversing cycle which enables the heat pump not only to take the chill out of the water, but also to put it back in, cooling the pool water during the hot summer months.

How Heat & Cool Heat Pumps Work
Usually a heat pump will capture heat energy from the air with the evaporator coil. Using refrigerant and several other components, the heat is then transferred to the pool water. By reversing this process, the heat pump will actually take heat out of the water, transfer it to the freon and run it through the evaporator coil. The coil releases the heat into the outside air. In colder conditions, a heat pump may freeze up when the ambient air drops below approximately 40-45 degrees. With a heat/cool unit, the ice will melt off in just a matter of minutes when in defrost mode. Standard heat pumps rely on the ambient air being drawn across the coil, which could take hours to defrost, depending on the air temperature.

The Passive Cycle Defrost Function
The passive defrost cycle initiates in a heat only heat pump when the evaporator sensor detects refrigerant temperature below the defrost set point. At this time, the heat pump compressor stops. The evaporator fan will continue to run and will draw air over the evaporator fins for about 15 minutes in an attempt to have the unit defrost. If after this time the unit has not been successful in defrosting using this function, the unit will shut down.