help with wire a thermostat to biasi boiler

[r1m4s]

hello anyone can help me with wire a thermostat ??



thank you very much !!

 

[Agile]

That info seems enough for a competent person to connect a stat.

But Biasi boilers must be connected very carefully or damage can result to the PCB.

 

[r1m4s]

I fear damage the PCB, to avoid..asking
Can anyone give me advise, NO and COM where I should connect
Thanks

 

[DP]

NO and COM go to 1 and 3 shown on page 2
Boiler is supplied with a wire link across 1 and 3. Your external control NO and COM replace the wire link.

You end of the day will carry the can if there is a failure should something else be fixed to those connections
If not sure, call an installer to carry out the task

Why the need to post your query twice?

 

[r1m4s]

thermostat has a COM (linked live feed) and "L" live feed

on wiring diagram L and N is connected to the neutral and earth?? if that makes sense

 

[DP]

Is exactly what I write. To get the boiler working for CH, 1 needs linking to 3 and boiler runs for CH unless Hot Water tap running; NO and COM does that linking when timer makes a call.

Get an installer if above does not make sense

Voltage will be on 1 of 3 of the boiler