Wiring help for Combi with 2 zone valves and stats

[Alan J]

Hi.
Does anyone please have any links for a wiring diagram for a new housing association home.

It has a Baxi condensing boiler, 2 Zone valves and 2 separate Mysson MPRT programmable room thermostats.

I'm assuming this is now a requirement to have upstairs and downstairs on separate zones.

Many thanks, Alan

 

[ShaunCorbs]

Just wire in s plan or s plan + if not combi

 

[mfgs]

Exactly the same as normal s plan wiring.

 

[jonnyswamp]

Wiring Diagrams - Honeywell UK Heating Controls

Have a look on here

 

[Alan J]

Thanks for your replies guys.
I had checked the S Plan but the system I have to wire has no tank stat or individual programmer.

The boiler is a Potterton Promax combi with 2 separate Mysson Power extra zone valves each operated by 2 separate Mysson MPRT programmable room thermostats.

Any help appreciated.
Alan

 

[ShaunCorbs]

any help? or do you have an internal clock?

 

[Alan J]

Thank Shaun
The only difference is that there is no internal clock or programmer.

Each valve is just operated by programmable room stats.

Alan

 

[ShaunCorbs]

Thank Shaun
The only difference is that there is no internal clock or programmer.

Each valve is just operated by programmable room stats.

Alan

what boiler? and are the already installed as you could be wired a few ways

think as channel 1 the live out (from the boiler ) and think of switch live as call for heat (live back to boiler)

 

[mfgs]

Thank Shaun
The only difference is that there is no internal clock or programmer.

Each valve is just operated by programmable room stats.

Alan

You just wire it like you would a normal boiler. The programmable stats switch the valve, so no need to wire in a timer. Switch live from each stat to power each individual valve.

 

[DaveTidy]

Hi.
Does anyone please have any links for a wiring diagram for a new housing association home.

It has a Baxi condensing boiler, 2 Zone valves and 2 separate Mysson MPRT programmable room thermostats.

I'm assuming this is now a requirement to have upstairs and downstairs on separate zones.

Many thanks, Alan

This diagram should help if you also have a cylinder, if not there's a few example diagrams on the same menu click here