7.5 Connecting the domestic water circulator pump

The heat pump controller can be used to control the domestic water circulator pump (Q4). By default, the circulator pump operates whenever the domestic hot water operating method is in the ON state. In the heat pump’s user interface, you can change the circulator pump control method so that the pump operates by a certain schedule.

Connect the circulator pump to the relay Q1 and contact Q14 (230 V) of the expansion module TC1.1.