Central heating programmer install

[jackfrosty]

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

 

[Andy™]

i normally take supply to programmer then to boiler, but it can be done either way

 

[rainydays]

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

 

[SPECIAL LOCATION]

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!

 

[Theorysparky]

some need permanent supply and then take switching from programmer

mine does