Users can remove all display ads (not sponsors) for a small fee. Click for info (must be logged in)

Discuss How do I wire up this Honeywell T3R Thermostat? in the DIY Plumbing Forum area at PlumbersForums.net

Messages
4
Hi, I live in a really remote part of the Highlands, so paying for a plumber (or electrician?) to do this will be brutally expensive, so I need to do it myself.
I have a Grant Combi 26e boiler.
I'm replacing the old thermostat with a new one.
Although the boiler is a combi, I think the old thermostat was wired up as an on/off (it has a bridge wire)? The old system worked fine, so unless there's good reason not to, I'd like to just keep it as an on/off.
You guys probably don't need the thermostat's wiring instructions, but I've included them just in case.
board.jpg
wires.jpg
IMG_20230915_160100.jpg


In the 2nd pic I've number the new thermostat's connector things 1 to 7. Providing I don't need any more wires from the boiler, could you guys tells me which number the: "Plug Earth", "Plug Live", "Plug Neutral", "Boiler Live", and the bridge go to?

-I'm not rich at the moment, but I'll happily make a small donation to charity for the help (I see others have done this). It would be cool if the site owners had one in mind, and had a link we could use...?
 
Plug n to n2
Plug L to L3
L4 to a5
Boiler live to b6
 

Reply to How do I wire up this Honeywell T3R Thermostat? in the DIY Plumbing Forum area at PlumbersForums.net

Similar plumbing topics

Every two weeks or so I have to go and top up the system because the hot taps are running cold. Boiler display is flashing 0.6 bar and I fill up...
Replies
2
Views
273
PSxxxxxx
P
I want to reconnect some outbuildings to an existing water supply. The supply pipe is old 22mm MDPE and buried for a fair distance so not going...
Replies
1
Views
315
Hello, I am seeking some advice, I have a POTTERTON PROMAX 28 COMBI Boiler and I noticed yesterday that the water around the house is no longer...
Replies
4
Views
281
Can anyone recommend a decent multi meter, preferably under a 100 pounds. It's for checking boiler components so I don't need a top spec one...
Replies
7
Views
295
Hi all. Hope you have all been keeping well. A while back I decided I only wanted to fit one brand of boiler and decided on Viessmann due to...
Replies
9
Views
299
Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock