The pump is located after the primary heat exchanger within the heating appliance and allows the heated water to be circulated within the closed heating system. In combination boilers, the pump can be found before the diverter valve to allow circulation.
Please, check the dimensions to make sure compatibility before order.
Suitable Models
Viessmann: Vitodens 100 WB1B 26KW , Vitodens 100 WB1B 30KW ,Vitodens 100 WB1B 35KW