"Set Square" wrote in :


I've considered the Grundfos Pump Plan - seems very advantageously
priced at plumbworld ATM, and came up with this doc

UPP_Pump_Plan_05_03.pdf

but I don't know where from.

It contains a wiring diagram.

A URL would be *awfully* useful!

http://www.centralheating.co.uk/inde...ewFile&id=6551

I hope it works, took ages to find again,


I can't find any reference to prevention of flow if only one service is
required - if the CH is on ISTM that the pump will pull water through the
boiler, but also tend to pull it back through the HW circuit.

Otherwise I'm very rempted, the price isn't too outrageous against one pump
and a 3port or two two port valves, and it seems more direct.

I realise 2 pumps in one casing means quite a lot of replacement for one
failure, but I haven't found grundfos pumps bad

mike