WARNING: Install a check valve and/or a Hartford loop AFTER the heat pump pool heater and BEFORE any chlorinating devices. Install any auto- matic chemical feeders AFTER the heat pump pool heater. Improper installation of any type of auto- matic chemical feeders can result in serious damage to, or premature failure of, the heat pump pool heater and will void the heat pump pool heater warranty.
Controls & Indicator Lamps (Analog Models)
Your analog heat pump pool heater incorporates safe- ty controls and indicators to ensure its safe, reliable operation (for models with digital controls, see page 11).
Water Pressure Switch: Prevents operation when the pump is OFF. The unit requires 5 psi minimum pres- sure.
Water Temperature Control: Pool/spa water temper- ature is controlled by the heat pump pool heater thermostat on the unit control panel, which contains a switch and 2 thermostats, one for setting a heat spa temperature and the other for a swimming pool tem- perature. The switch can operate an optional external control system, or can switch between thermostats for pool or spa.
NOTE: The heat pump pool heater will not run when the Remote position is selected on the Pool/Spa selector switch and there is no remote control sys- tem attached.
Defrost Switch: Prevents heat pump pool heater operation if ambient air temperature falls below a pre- determined safe minimum (approximately 42° F).
Delay Timer: Prevents compressor from short cycling, which could damage or destroy the hermetic motor/compressor. Upon water temperature control satisfaction, or other circuit interruptions, this solid state device will prevent compressor restart for approximately 5 minutes.
Refrigerant Low Pressure Control: Stops the com- pressor if refrigerant suction (low side) pressure falls too low as a result of a malfunction, loss of charge or extreme cold conditions.
Indicator Lamps: There are 6 indicator lamps located on the unit control panel (see Fig. 3 below):
•Power (amber lamp): When lit, indicates power is applied to the unit.
NOTE: The heat pump pool heater will not run when the Remote position is selected on the Pool/Spa selector switch and there is no remote control sys- tem attached.
•Water Flow (green lamp): When lit, indicates nor- mal water flow.
•Heat Demand (green lamp): When lit, indicates the actual water temperature is below the target water temperature.
Fig. 3: Indicator Lamps — Analog Models
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