Manufacturer of Quality Air Conditioning and Heating Products • www.islandaire.com • sales@islandaire.com • (800)-886-2759
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reversing valve:
The reversing valve controls the direction of refrigerant
flow for both heating and cooling functions and remains
energized as long as the controls are in the heat position.
When the cooling controls are activated, the valve auto-
matically reverses to the cooling position.
NOTE: Be sure to connect reversing valve wiring to the
B (blue wire) connection of the thermostat for heat pump
applications.
Heat pump models offer substantial savings over models
with conventional electric resistance heaters.
When the outdoor coil temperature is above 27 °F
(approximately 35 °F outdoor-air temperature), the heat
pump draws heat from outdoor air and uses it to heat
indoor air. Since the heat supplied to the room is the
result of reversing the refrigeration cycle, the heat pump
uses less power than a conventional heating system,
therefore reducing energy costs.
outdoor Thermostat:
During the heating cycle, the outdoor thermostat senses
outdoor coil temperature. If the outdoor coil tempera-
ture falls below 20 °F (approximately 35 °F outdoor-air
temperature), the unit automatically switches to a backup
electric heater. The compressor stops and a blower circu-
lates warm air produced by the heater.
The thermostat automatically switches the unit back to
heat pump operation when the outdoor coil tempera-
ture rises above 40 °F, which is enough to provide heat
to meet demand. The entire operation is completely
automatic.
Product Information (Cont.)
