Central heating programmer install

Talk Electrician Forum

Help Support Talk Electrician Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

jackfrosty

Senior Member
Joined
Feb 24, 2010
Messages
163
Reaction score
0
Hi

Ive added a spur for a combi boiler, and got to wire it up to a honeywell cm901 programmer.

Am i correct in saying a take flex from the spur to the boiler and then from the boiler to the programmer?

Any tips advice greatly recieved. Also 1.5mm twin and earth is fine to the programmer isnt it? Cheers

 
Some manufacturers instructions state that you take the supply into the boiler first then from the boiler to your external controls

 
Some manufacturers instructions state that you take the supply into the boiler first then from the boiler to your external controls
Bottom line...

Read manufactures instructions...

Don't want to go knackering someones new boiler cuz you wired something ar5e about face! :D ;)

 
some need permanent supply and then take switching from programmer

mine does

 
Top