Circulation pump permanently on

[Last plumber]

I've seen single circuit UFH's with a separate supply for the pump from a fused spur and the pump works off a stat (in the manifold), like midwest is describing and the valve is just used to isolate that circuit, (stop flow).
If there is more than one loop, it needs more control over the pump. That's when you normally see the wiring centres, as I remember.

Unfortunately as this is a stand alone single circuit and the previous sparks didn't put in a dedicated wiring centre which I would normally use which has the ability to setup multiple pumps, I think I need either a different wiring centre or to put in a relay to stop the second pump back feeding the HW/CH pump, however I keep looking at the wiring diagram and can't work out where the back feed is coming from, got them pulling the wireless receiver tonight to see if that solves it!:-( I wouldn't mind but he is plumber by trade, he should be able to do his own wiring!

Does the manifold have a stat built in for the pump ?

 

[Leesparkykent]

The bodge way is to connect the UFH pump to the brown of the UFH 2 port valve and call for heat from the UFH thermostat. The ideal way is to connect the UFH pump to the coil of a relay along with the orange of the UFH 2 port valve.

 

[rolyberkin]

I've seen single circuit UFH's with a separate supply for the pump from a fused spur and the pump works off a stat (in the manifold), like midwest is describing and the valve is just used to isolate that circuit, (stop flow).
If there is more than one loop, it needs more control over the pump. That's when you normally see the wiring centres, as I remember.


Does the manifold have a stat built in for the pump ?

The manifold doesn't have a stat built in, it is acting like a heating circuit, one zone valve, wireless thermostat/timer.

 

[rolyberkin]

The bodge way is to connect the UFH pump to the brown of the UFH 2 port valve and call for heat from the UFH thermostat. The ideal way is to connect the UFH pump to the coil of a relay along with the orange of the UFH 2 port valve.

I have taken the bodge approach, will
Go back, check wiring and put in a relay! Thanks.