Basic Configurations Supported

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Non-circ system

A System that uses a 2-speed pump to heat and filter the spa.

•Vacuum side heater.
A heater that is located on the suction side of the pump.
•Pressure side heater.
A heater that is located on the discharge side of the pump.

The heater requires at least 20 Gallons per Minute (GPM) of flow for proper function.
Some systems may require at least 25 GPM.

Circ system

System that uses a dedicated 1-speed pump to
heat and filter the spa.

•The circ pump motor must not exceed 2 amps

NOTE: The amperage limitation for the Circ Pump must be adhered to so as not to overload the printed circuit board ampacity.

•Vacuum side heater.
A heater that is located on the suction side of the pump.
•Pressure side heater.
(A heater that is located on the discharge side of the pump.)

The heater requires at least 20 Gallons per Minute (GPM) of flow for proper function.
Some systems may require at least 25 GPM.