Open Vented System with Integrated Pump

[jcoconnor]

Hi,

I am installing a warmflow UP120HE condensing utility boiler, but am unsure of where to place the Cold F/E and Vent pipes.

The recommended way appears to be between the Boiler and Circulation Pump. (e.g. as per Position 5 in: J.Mac's Pump Tool )

However, the integrated model has the pump connected directly to the output of the boiler which means I would have to modify the company supplied pipe work on the boiler which I am reluctant to do.

One option would be to remove the pump from the boiler casing so that I can fit the Vent and F/E pipes between the boiler and the pump, but I would assume this could invalidate warranties.

Suggestions ?

Thanks - John