CMT927

[ashleyp]

Hi,

Currently have a Potterton Suprima HE 60 boiler, with a Honeywell ST6400C controller, and analog room stat.

It's a S-Plan system with 2xHoneywell v4043h1056 two way valves.

Wanting to move the thermostat into the lounge, so looking to get a Honeywell CMT927 for CH timer and thermostat, and a basic hotwater controller such as a Honeywell ST6100C.

Going to get a sparks to do the wiring - just before I buy I wanted to check if this will all work together and make sure I haven't overlooked anything?

Thanks.

 

[Dan Robinson]

It will be fine. Should take 15 mins to do tops.

 

[ashleyp]

Thanks, suspect it will take longer as the wiring looks like a bodge job.

(Orange wires going nowhere just taped together for example)
View media item 38997

 

[D_Hailsham]

There's no need to spend money on a ST6100C for the hot water; the ST6400C will still do the job.

Get the electrician to move the wire connected to the ST6400C CH ON terminal to the L terminal and you will have disabled the CH side of the ST6400C.