Overview of Controls

(Please refer to control panel diagram on previous page.)

POOL/OFF/SPA Toggle Switch:

With the toggle switch in the OFF (O) position, the heater will be prevented from operating (however, there may be power to the unit; see "Power Light On", below). With the toggle switch positioned toward the SPA or POOL thermostat knob, and with the following conditions met: 1) water pump in operation, 2) water flowing through the heater, and, 3) electrical power to the heater, the heater will run anytime the water temperature drops below the thermostat setting.

Note-Heater Can Start with Thermostats Set to Minimum:

With proper water flow and electrical power supplied to the heater, and either the POOL or SPA thermostat selected and set to minimum, the heater will run any time the water temperature falls below 60º F. To prevent the heater from operating at water temperatures below 60º F, position the POOL/OFF/SPA toggle switch to the middle, OFF position.

Power Light On:

Indicates electrical power is supplied to the heater. The heat pump will start if the selected (POOL or SPA) thermostat calls for heat, and there is proper water flow through the heater.

Power Light Off:

Indicates proper electrical power is not getting to the heater. If attempting to operate the heater, ensure any disconnect switches, or circuit breakers, are switched to the ON position.

Flow Light On:

Indicates sufficient water flow to permit the heat pump to operate. The heat pump will start upon a call for heat from the selected POOL or SPA thermostat.

Initial Start-Up and Basic Operation

(Please refer to "Overview of Controls", above, before continuing.)

1.Lower Thermostat Settings-Set P/O/S Toggle Switch to OFF: u Turn both thermostat knobs counterclockwise to lowest settings. u Position the POOL/OFF/SPA toggle switch to "OFF".

2.Establish Water Flow and Electrical Power to the Heat Pump: u Position the water valves to heat either the pool or the spa.

u Ensure any heat pump-related disconnect switches, or circuit breakers, are switched to the ON position.

u Start the pool or spa pump (depending of which body of water is to be heated), permitting the pump to operate for a few minutes before going on to next step. This wait is necessary to clear any air that may exist in the water piping.

u The heat pump will not start without water flowing through it. At this point, the power and flow lights should be illuminated.

3.Select POOL or SPA-Raise Associated Thermostat:

uPosition the POOL/OFF/SPA toggle towards the POOL or SPA thermostat knob (depending on which body of water you are preparing to heat).

uTurn the selected pool or spa thermostat dial clockwise to its highest setting. As soon as the thermostat setting is above the temperature of the water, the heat pump will begin to operate.