replacing old valves for trv's

[sam1670]

hi all, i'm about to be replacing my old radiator valves for trv's. however i have a theory in my head that the trv needs to go the opposite end of the bleed screw in the rad is this right or does it not matter which end i put them.
also am i to leave 1 radiator without a trv, i've heard that you leave the radiator with the thermostat near. however in a couple of weeks we're having a combi system fitted with a wirless thermostat.

can anyone help?

 

[seco services]

Don't matter what end the bleed screw is.
As for the room stat don't matter if its wired or wireless still don't have a trv on the rad in that room.

 

[sam1670]

ok thanks muchly

 

[Iddy]

Most TRV's are 'bi-directional' now - i.e. can be put on flow or return, but better to be on flow if you can imho

 

[sam1670]

hi there agian so i finally got the trv's fitted couple of hiccups yesterday. however im having trouble bleeding system. i emptied the whole system and seems to not be filing up. where do i start the refill process?

 

[seco services]

Sounds like you have a blocked cold feed from the f/e tank.