Product Information: The pump is usually located after the primary heat exchanger within the appliance and allows the heated water to be moved around within the closed heating system. In combi boilers , the pump is usually located before the diverter valve to allow circulation through the DHW and central heating systems.
This part is present in 25 different boilers in the Vaillant range including the Vaillant VCW 242 E , VCW 240 XT , VCW 240 T , VCW 221 T , VC 240 T .