I have one radiator in the system which will only get warm if the head of the trv is unscrewed.....i thought it was a faulty trv to start with but this has been replaced......so now thinking the trv and lock shield have been installed the wrong way round?.....i cant ever remember this radiator working properly.....or do you think this could just be a balancing issue?
Trv / lock shield / balancing issue?
- Thread starter vards01
- Start date
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How many arrows on the TRV body?
If only one the TRV can go on either end but installed so the arrow points in the direction of flow: towards rad on the flow (hotter) pipe; away from rad on return (cooler) pipe.
If two arrows, the TRV can go on either end, in any orientation (horizontal or vertical).
It sounds like a balancing problem. Check how far open the lockshield valves are. If more than half to one turn from closed, the system has probably never been balanced.
If only one the TRV can go on either end but installed so the arrow points in the direction of flow: towards rad on the flow (hotter) pipe; away from rad on return (cooler) pipe.
If two arrows, the TRV can go on either end, in any orientation (horizontal or vertical).
It sounds like a balancing problem. Check how far open the lockshield valves are. If more than half to one turn from closed, the system has probably never been balanced.
I have found only one arrow is present on the current trv and the lock shield side warms first when the head of the trv is removed.
So whoever originally installed the system put them around the wrong way.
In theory I should just be able to buy a bi directional drayton trv4 and swap them over, even though traditionally he is in the wrong place?
So whoever originally installed the system put them around the wrong way.
In theory I should just be able to buy a bi directional drayton trv4 and swap them over, even though traditionally he is in the wrong place?
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