Swapping orientation of TRV head

[CAESAR32]

Is it possible to undo this TRV and and change so it's facing vertically? After draining down. Thanks

 

[Deleted member 267285]

Yes it is. Sorry, not much more to say.

 

[CAESAR32]

Thanks yes just drain down undo both nuts and swap orientation. Maybe abit of paste on olives

 

[Deleted member 267285]

Thanks yes just drain down undo both nuts and swap orientation. Maybe abit of paste on olives

Sounds like you know what you’re doing. Yes, sounds good to me.

 

[Harry Bloomfield]

TRV's do tend to be more responsive, when set horizontally - not directly above the pipework.

 

[Agile]

Yes, I agree.

So I wonder why you would want to change it to a less effective position!

 

[CAESAR32]

They want radiator covers

 

[Mister Banks]

They want radiator covers

Radiator covers restrict the flow of air over the radiator hence less heat goes into the room.

 

[CAESAR32]

I guess one option would be just to take the head off the TRV?

 

[Elkato531]

Leave the TRV as it is and make a cut out in the cover so that the TRV head is protruding out of the box. That way it will be able to do its job.

 

[CAESAR32]

Have you done before? Was thinking that.

 

[Elkato531]

Have you done before? Was thinking that.

Nope, never fitted rad covers but come across a few fitted with the trv poking out the side.

 

[CAESAR32]

Sadly they don't want that. It's two rads down stairs I could either just remove the head. Or swap orientation over. Sealed system would probably airlock after pressure removed. To swap orientation

 

[Elkato531]

No way I would be going through the hassle and time to drain down just to switch those valves round. Should be able to do it under vacuum once the pressure is released. Make sure any auto air vents are closed. Depending on the boiler, the flow and returned isolators can be closed to isolate the expansion vessel and internal air vent. There are some boilers, however, on which it would not be safe to use the iso valves. If you're not sure, post the make and model of the boiler and someone should be able to advise on whether the iso valves should operate without leaking.

 

[CAESAR32]

Ideal logics heat only 2019ish