where do I wire the underfloor heating pump on a S plan system

[markwilt]

Hi
I have just changed from a Y to a S plan with 3 zones but the wiring instructions do not say where to wire the UF pump.

I have a horstmann h37xl programmer & am working from the wiring diagram Masterpack 37 which I have linked below.

[DLMURL]http://www.horstmann.co.uk/downloads/ElectronicDocuments/Packs/MasterpackwithH37XL.pdf[/DLMURL]

Thanks

Mark

 

[SimonJohns]

Did you have underfloor before?

What are you using to mix the water?

Any other info??


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[markwilt]

Hi

I have put UF in at same time (in conservatory). Its a pump with a blending valve attached. I also have a programmable room stat with it.
The pump is in the kitchen with the pipes running up to the boiler cupboard where I have taken out the Y system & put 3 x 2 port valves.

Thanks

 

[SimonJohns]

If you mean the pump for the boiler then that would come off the orange wire of your two port(honeywell)

The pump for the underfloor heating circuit I would have linked to the clock for the heating of the room and have the thermostat controling only the two port valve


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