Wetroom Store - Network Wetroom Suppliers
This official sponsor may provide discounts for members

Discuss Central heating pump on continuous in the Central Heating Systems area at ElectriciansForums.net

andyb

-
Esteemed
Arms
Reaction score
1,148
Welcome to ElectriciansForums.net - The American Electrical Advice Forum
Head straight to the main forums to chat by click here:  American Electrical Advice Forum

The one's in the roomstat termination?

TBH I'd rip the lot out and start again.
If I understand you, no, the one in the roomstst terminal is probally correct, the one in the live is probally for the boiler terminal.
 

Strima

-
Esteemed
Arms
Reaction score
5,378
If I understand you, no, the one in the roomstst terminal is probally correct, the one in the live is probally for the boiler terminal.
Looking at the flex I would have said both go to the roomstat but as the pump's running on who knows what's going on with the wiring...
 

andyb

-
Esteemed
Arms
Reaction score
1,148
Looking at the flex I would have said both go to the roomstat but as the pump's running on who knows what's going on with the wiring...
I doubt both go to the roomstat Strima, what would open the valve. Looks like the cable goes to the heating joint box where one is the return from the roomstat and the other goes to the pump. In fact if this was a straught swap with no messing with the wiring, that has to be the case.
 

Strima

-
Esteemed
Arms
Reaction score
5,378
I doubt both go to the roomstat Strima, what would open the valve. Looks like the cable goes to the heating joint box where one is the return from the roomstat and the other goes to the pump. In fact if this was a straught swap with no messing with the wiring, that has to be the case.
Quite possibly, but without looking we'll never know... 😂
 
Reaction score
16
By moving the the doubled up live to x14 the pump started operating normally. The RT does go to the room stat. As chased it through.
So thanks andyb you are correct.
The installer just missed the x14 because he usually installs worcester but couldn't get one in time.
Thanks for all replies and help.
 

Mike Johnson

-
Esteemed
Arms
Reaction score
1,777
The installer was not correctly qualified/competent, you should get them back to move the doubled live to x14 to ensure you are covered by their insurance.
 

brianmoooore

-
Esteemed
Arms
Reaction score
573
Should be a 4C flex into the boiler and a 3C out of it to the pump from X14. As it is, it looks like the neutral to the pump could be disconnected during maintenance, leaving a live connected to it, which could be dangerous.
 

Timbo

-
Esteemed
Arms
Supporter
Reaction score
506
Should be a 4C flex into the boiler and a 3C out of it to the pump from X14. As it is, it looks like the neutral to the pump could be disconnected during maintenance, leaving a live connected to it, which could be dangerous.
Brian, I think you're missing the fact the flexes obviously go back to a joint box of some sort as the boiler call signal and pump live are in the same flex.
 

Paignton pete

-
Esteemed
Arms
Reaction score
1,926
Brian, I think you're missing the fact the flexes obviously go back to a joint box of some sort as the boiler call signal and pump live are in the same flex.
Timbo you are correct in the joint box( wiring centre) and the neutral and linked live feed will go to pump from there, but there really needs to be more conductirs in that boiler.

the pump terminations require live neutral and earth.
Just popping the pumps live Feed in the Termination strip Isn’t good enough.
All 3 terminations need filling. You can then take the fed direct to the pump or back via the wiring centre.

it may be that a link has been taken between both neutral and earth terminals, this if fine but I frown on it.

I know it would work functionally, but if your going to do a job do it right.
 

Reply to Central heating pump on continuous in the Central Heating Systems area at ElectriciansForums.net

Top