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by Thornhill
Thu Oct 18, 2007 2:16 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Underfloor Heating - Pump switch in manifold not working?
Replies: 10
Views: 18145

Thanks again Doc. I think that what you are suggesting is correct, but requires some changes to the pipework also... The current configuration has the UFH spur between the Boiler and the main pump. If the pump is started and the Rad & Cylinder valves are both closed then there's a problem. I thi...
by Thornhill
Wed Oct 17, 2007 12:41 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Underfloor Heating - Pump switch in manifold not working?
Replies: 10
Views: 18145

Thanks again Doctor, that does seem to confirm my understanding, but does concern me a little. Let me try to describe the set-up .... The UFH has been added to an existing system. Original set-up is as follows. Boiler leads to pump, which leads to T-junction. One side has valve and leads to Rads; ot...
by Thornhill
Tue Oct 16, 2007 3:32 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Underfloor Heating - Pump switch in manifold not working?
Replies: 10
Views: 18145

Thanks for your thoughts Doctor, I will reset the thermostat and try again. However, I've re-read the documentation that came with the unit and am slightly confused as to how it can ever work! The documentation suggests that the internal thermostat switches the pump off at about 30 degrees and switc...
by Thornhill
Mon Oct 15, 2007 8:23 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Underfloor Heating - Pump switch in manifold not working?
Replies: 10
Views: 18145

The Manifold Thermostat is on Max, although I have tried Min setting. It is in an enclosed space, but I have removed the panels for access so is currently open, but does not seem to make a difference. I'm really not sure what this thermostat is supposed to do, should it trigger the pump when the tem...
by Thornhill
Mon Oct 15, 2007 12:59 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Underfloor Heating - Pump switch in manifold not working?
Replies: 10
Views: 18145

I have the temperature on the manifold thermostat on Max, but have tried changing this.
The Manifold is enclosed, but have removed all of the enclosure for access, but this does not appear to make a difference.

I'm not clear on what this thermostat should do.
by Thornhill
Sun Oct 14, 2007 7:48 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Underfloor Heating - Pump switch in manifold not working?
Replies: 10
Views: 18145

Underfloor Heating - Pump switch in manifold not working?

I recently had a Speedfit underfloor heating pack installed. It links in with my existing boiler/rad system with a separate circuit. It has a room thermostat & controller and its own pump which appears to be controlled by a thermostatic switch in the manifold. The thermostat & controller app...
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