Product Information: The pump is usually located after the primary heat exchanger within the heating appliance and allows the heated water to be moved around within the closed heating system. In the design of most combination boilers , the pump is usually situated before the diverter valve to allow circulation through the DHW and central heating systems.
This part is present in 10 different boilers in the Vaillant range including the Vaillant ECOmax 613/2 E , ECOmax 618/2 E , ECOmax 622/2 E , ECOmax 828/2 E , ECOmax 824/2 E .