A Fan/Pump-controller in combination with a Fan/Pump-box is used to control the pump On/Off and fan-speed of the chiller.

The controller receives 2 signals from 2 sensors: 1 temperature sensor to determine water temperature in the system and a startsensor to determine if the compressor inside the Opticlimate is On/Off.

The startsensor will control the pump and the temperature sensor will control the speed of the fans of the chiller.

Without this fan pump controller package the fan and pump will run 24/7 on 100%.