Non reversible TRVs All aspects of plumbing questions and answers, help, tips and information

[danblue]

Can anyone help? i've discovered that (along with two other 'reversible' TRVs fitted to the ruturn) my plumber has fitted a Drayton TR4 on the return. I am pretty sure this TRV is non-reversible.

Does this really matter? Am I going to damage the system by leaving it? It's a pressuried system. I've left the TRV on a high-ish setting so I suppose it's acting like a locksheild.

Thanks for any words of wisdom.

Dan

[peter the plumber]

Well you should fit trv’s on the return pipe for the simple reason that hot water pipes could affect the temp sensor on the trv.

But I wouldn’t worry about it.

The system will be ok and work.

I can’t see it causing any problems; your trv may turn off before the right temp, so just turn it up a bit to fix it.