Vertical radiator issues

[Moomoo]

Never heard of the manufacturer looks like a cheap Drayton 4

Seems to be exclusive to plumbworld.

Any idea why I can’t isolate this rad to drain it. When I try it seems to be draining the whole system. Could it be because it’s supposedly on the wrong side

Trv not shutting all the way

Lockshield off

Trv off not on star you should be able to drain just the rad

Would explain why the trv does nothing if it’s still flowing through when supposedly shut / off

Trv only goes to star. There is no 0. Plumbworld advised that star is the off position
But when at star the rad does shut down completely

 

[Moomoo]

Trv not shutting all the way

Lockshield off

Trv off not on star you should be able to drain just the rad

Would explain why the trv does nothing if it’s still flowing through when supposedly shut / off

Trv only goes to star. There is no 0. Plumbworld advised that star is the off position
But when at star the rad does shut down completely

 

[John.g]

Even if that was uni directional it would be installed correctly when horizontal, all my TRVs are installed this way, a few old ones are uni directional and working perfectly.
Can you push the pin in/out ~ 5mm with the handle of a reversed hammer or like with actuator head removed, also ensure the actuator is wound fully out, anti clockwise to index 5 or whatever is max before re installing it.

 

[Moomoo]

Even if that was uni directional it would be installed correctly when horizontal, all my TRVs are installed this way, a few old ones are uni directional and working perfectly.
Can you push the pin in/out ~ 5mm with the handle of a reversed hammer or like with actuator head removed, also ensure the actuator is wound fully out, anti clockwise to index 5 or whatever is max before re installing it.

Thanx. Will try. It’s not horizontal. It’s angled and coming out of the wall.

 

[Moomoo]

Trv not shutting all the way

Lockshield off

Trv off not on star you should be able to drain just the rad

Would explain why the trv does nothing if it’s still flowing through when supposedly shut / off

Just been advised it’s not a fault. This Trv only goes to frost protection. There’s no off position. Would need a decorators cap for removal.

 

[ShaunCorbs]

So it will never shut as the pin won’t go any lower than the frost so always open

 

[Moomoo]

So it will never shut as the pin won’t go any lower than the frost so always open

Didn’t know that. Well at least I’ve learned something new today. And they didn’t even provide a decorators cap with the Trv !!

 

[John.g]

Even if it only goes to its frost setting it should be well shut since the room temp will be well above the frost setting?.

 

[John.g]

From I think a EPH TRV.

 

[Moomoo]

Even if it only goes to its frost setting it should be well shut since the room temp will be well above the frost setting?.

Yes it’s well shut on frost setting but we were talking about isolating and removing this rad which you can’t do if Trv only goes to frost setting and doesn’t have a zero or off setting and I obviously didn’t know such Trv s existed. I thought they all had an off setting