3 zone valves (underfloor, 1st floor rads, 2nd floor rads

[Craig2022]

Hi, so I have 3 zone valves in place for my heating;

1 - for underfloor heating
2 - 1st floor heating
3 - 2nd floor heating

for some reason the plumber has put a zone valve at the pump of the manifold.
The 2nd floor has a missing room stat cable so will have to opt for a receiver for a wireless stat.

Heating isn't a strong point and I was wondering if anyone has an available wiring diagram that can help assist me with this heating.

I have a 3 channel programmer next to the boiler.

 

[Devonchris]

Whilst what you need is "S Plan plus" , try googling it there are plenty diagrams available, this thread on here may help.

Simplified S-Plan and Y-Plan Wiring diagrams - https://www.electriciansforums.co.uk/threads/simplified-s-plan-and-y-plan-wiring-diagrams.117230/

 

[Craig2022]

Thanks for the reply Chris, struggling to find the S Plan plus, but getting a better picture looking at the link you gave.

 

[nunthe wiser]

This may be of help

 

[Leesparkykent]

Thanks for the reply Chris, struggling to find the S Plan plus, but getting a better picture looking at the link you gave.

 

[nunthe wiser]

Part of a guide produced by Honeywell.

 

[Craig2022]

Thanks for all the responses guys! Really appreciate it!
Will save these and give it a crack tomorrow!

 

[Toneyz]

You have not said about hot water and what type of boiler. Some photos may help if you get stuck.

 

[Craig2022]

You have not said about hot water and what type of boiler. Some photos may help if you get stuck.

Sorry it’s a combi boiler. Hot water is just done from boiler.
The manifold is a 4 way emmeti, with the emmeti dial thermostat for the underfloor heating

 

[Craig2022]

I feel something not right as they have 5c flex from 3 channel controller and a 3c&e down to heating box, with a L&N from a spur. 3c flex from boiler to heating box. Surely, the 5c flex should of went from heating box to the boiler?
3core and earth would be enough from channel as you just need a live from each valve to the 3 channel programmer?

Please correct me if I’m going a bit of corse.

 

[Devonchris]

I think you may be way of corse (sic).

It may help if you said what you were trying to do. Are you trying to understand how it its wired? Fix a fault? Add something? Or install from new?

The diagram posted by Lee has all the information you need. It just needs adapting slightly for your particular situation. The underfloor heating is just treated like a zone in the main wiring, Then within that zone it has its own thermostat and actuators for the manifold.

You say "they have 5c flex". Who are they?

As you are a Trainee is there some mentor you can ask?

I'm sure someone on here could help if you were more specific.

 

[Craig2022]

I think you may be way of corse (sic).

It may help if you said what you were trying to do. Are you trying to understand how it its wired? Fix a fault? Add something? Or install from new?

The diagram posted by Lee has all the information you need. It just needs adapting slightly for your particular situation. The underfloor heating is just treated like a zone in the main wiring, Then within that zone it has its own thermostat and actuators for the manifold.

You say "they have 5c flex". Who are they?

As you are a Trainee is there some mentor you can ask?

I'm sure someone on here could help if you were more specific.

Hey sorry Chris, I am a trainee and I had been put on a job that I didn’t first fix and I don’t really want to disrupt my boss with to many “silly” questions as he puts it. Putting myself on here helps get a better understanding myself for this kind of heating system and will help me in any future occurrence .

Ignore the part where I have put 5c flex, and basically ranted away, but I think going in today and not taking a step back and thinking a little set me back a bit.

I’ve managed to get everything in place in terms of my first and second floor. Tomorrow I’m going to go and start introducing the manifold/underfloor heating. I’ll let you know how it goes after tomorrow and I fire it all up

 

[Octopus]

^^ matey ............. you must ask your boss ................ the best possible way to learn is by hands in experience and hands on guidance.

 

[Devonchris]

Good, I'm glad your making progress. But as Murdoch says, never feel afraid or too silly to ask, it's a fine line between looking competent and looking dumb but I'm sure your boss wouldn't appreciate it if something went badly wrong.

Do you regularly go out to jobs on your own on apprentice money?

 

[Toneyz]

I await Pete's comments on above.