Energy saving High efficiency Circulator Pump with PWM for heating

Installations and Use

PWM version: Externally PWM controlled WHM PWM pumps have no user interface. The PWM input-signal control mode is enabled when the signalcable is plugged in and a signal is detected.

AUTO version: Internally controlled WHM AUTO pumps have a user interface with one button and seven LEDs.

Setting the pump WHM AUTO: The user interface allows to select between 6 control curves in three control modes. 2 proportional pressure curves (PP1, PP2); 2 constant pressure curves (CP1, CP2),plus one AUTOADAPT curve (CPA); 1 Maximum power curve (CC).