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ᐅ Turn on the underfloor heating at the thermostat/controller.

Created on: 12 Nov 2023 22:53
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Bertram100
Original post
I had underfloor heating installed later in the screed on the upper floor, which has a controller up there (or whatever that thing is called where the pipes are connected in a row and there is another row on top with extra indicators).
What do I need to do to turn on the underfloor heating on the upper floor? The indicator tubes are set all the way at the top, showing zero flow.

Could someone possibly help from a distance? Thanks in advance!
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NatureSys13 Nov 2023 15:53
#7
How about sharing a few photos?
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Bertram10013 Nov 2023 20:00
#8
Close-up of a heating valve with blue cover on a distribution manifold

Close-up of a valve panel with red knobs, metal housing, and blue protective caps

Industrial pipe distribution with red valves on top and blue protective caps below
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Benutzer 100113 Nov 2023 20:07
#9
So the actuators are missing here. Or the heating installer planned it this way and only performed the hydraulic balancing using the valves.

Could you please take pictures of the entire distribution system? The return and supply are both connected to the radiators—that’s the blue and red pipes at the valve, which looks like a T.

Now check the riser pipe for additional valves.

Has it been operated once already?

Do you see a pressure relief valve anywhere in the basement?
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Bertram10013 Nov 2023 20:20
#10
Offtopic schrieb:

Has it ever been running once?
Yes, right at the very beginning, after the installation 3 years ago.

Attached are photos from the utility room where everything is installed. I see that one riser pipe (red) is shut off. This can be seen at the very top in the second photo. I will try opening the valve and then see what happens.


Utility room with colored water pipes (red hot, blue cold) and valves.


Small utility room with water filter: blue filter housing, pipes, valves, measuring device.

Utility room with many white PVC pipes, red valves, blue water filter and control unit.
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Benutzer 100114 Nov 2023 04:50
#11
Turn on valve 1 first, then valve 2.

Stay nearby and check for any leaks.
Sanitary heating room with pipes, water filter, and control unit; two valves are marked.
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Bertram10014 Nov 2023 08:05
#12
Offtopic schrieb:

Turn on 1 first, then 2.

Thanks! I will try that this afternoon after work.