Installing Honeywell 927 to Worcester Bosch 30cdi

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Hi...

I hope someone is able to help.... We have a Worcester Bosch 30cdi boiler being installed and I am hoping to use the Honeywell CMT 927 wireless thermostat and receiver...

The problem we are having is the boiler shows the electrical connectors to have - LR Ls Ns N L

The honeywell shows N L T1 T2

Please can someone advise which connects to which.....

Any help would be greatly appreciated.... Many thanks in advance.... x
 
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check the installation instructions wiring section and look to see what terminals are for external controls, wireless receiver will require a L, N, Common and a switch live back to the boiler
 
Thanks....

I am sorry if I sound thick but I really don't have a clue and neither does my plumber!!!!

The diagram shows that the boiler should have N L T1 T1 but in fact has LR Ls Ns N L

What we are confused about is which relates to which???

The honeywell has NLL ABC

Is there any further help you can provide please???
 
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Thanks....

I am sorry if I sound thick but I really don't have a clue and neither does my plumber!!!!

The diagram shows that the boiler should have N L T1 T1 but in fact has LR Ls Ns N L

What we are confused about is which relates to which???

The honeywell has NLL ABC

Is there any further help you can provide please???


Boiler

L - live to spur
N - neutral to spur

Boiler / stat

Ls - L
Ns - N
Lr - B
Fit a link between L and A in the thermostat receiver


Your plumber should know all this. :)
 
Many thanks for this..... our plumber only ever fits WB timers!!!! So hasn't ever been asked about this!!!!

Thanks ever so much x
 
LS LR NS these are for your wireless receiver, LS- live NS neutral LR switch live back to boiler
The link on the boiler will need to be removed for use of external controls, on terminal st10 on the boiler!
 

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