help please. conventional central heating wiring

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Trying to sort out the conventional. Hot water central heating wires to my programmble timer. To my boiler. pump
1 Has cylinder imersion heater upstairs
2 Pump. Is up stairs
3. 2 tanks in loft gravity feed
4 ep 45 2 wire digital room stat
5. Salus ep 200 timer programmer
6 main he 15 a boiler heat only . In kitchen

As in the picture boiler has only 3 wires
s/l and netrual wire and earth
Spur has
red/ live and on right pic
black /netrual. As in pic

Yellow. Switch com from room stat battery operated
Blue neutral not used
Red live. From room stat

And. Another
red live
And black they must come from the valve next to the pump upstairs

Programmer has
Live. Netrual
1 hw off
2 ch off
3 hw on
4 ch on

Have wired
With 3amp from spur
Live red and black neutral
To light up the programmer timer

From room stat
Yellow com from room stat to
4. Ch on
Redl live to per live on programmer

Need to know please
Where to put
The 2. Boiler wires
S/l brown
Blue neutral

And the red. And black wire which makes the pump work from upstairs
Been picking my brains
Please help
Need to know
 

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Last edited:
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Hi added. Boiler inside pic

I know the yellow room stat wire goes on the ch on
Need to know which wire goes to the hw on and off
Happy xmas
 
You've got a Honeywell 'Y' plan, but without testing, you cannot guarantee which wire goes where, and by that description you've already made at least one mistake! These are not for the faint hearted to wire up, and sorry, but I think you're out of your depth already, remember this is mains voltage you're playing with. Find someone who understands heating system wiring to sort it out for you.

Get it wrong, at best you'll fry the programmer or valve, at worst you'll fry yourself or a member of your family... :eek:
 
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Totaly isolated
Doing my level 3. Electrical at the moment
Just need to know.
Ive had the. Boiler fire up
And central heating. Working
Valve. Lever i had to move to get the heating to come on
So tbat prob need replacing

I have the live and neutral from tbe spur on the programmer
Just need to confirm
The boiler s/l. Where that goes. Bolier only has that as live
Also from up stairs which fires up the boiler the red live where that goes
And the room stat.
Tried a few combinations safe
Got things co ing on
Just need to confirm. Hw off
Hw on
Ch on
 
I can't relate what you wrote to the pics.

Pic 1 shows several wires, but you don't say what each one does.

Where is the wiring centre?

Some pics show an actual component, pump, motorized valve etc,(we all know what they look like!), but not the other end of the cable, which is the important bit when it comes to wiring up.

PS Please stop putting full stops. in the middle of a sentence. Makes it very. difficult to read.
 
I'm doing my level 3 electrical at the moment, I just need to know.
By level 3 you should be able to follow a standard wiring diagram!
Lever I had to move to get the heating to come on, so that probably needs replacing.
A wiring error is the most common reason.
The boiler s/l. Where that goes.
To orange wire on valve and hot water call on cylinder stat.
I tried a few combinations safe, got things coming on.
Don't keep guessing, you will blow something up.
Just need to confirm Hw off, Hw on and Ch on
Follow the Y plan wiring diagram.
 
Last edited:
Thanks
Guy next door. Has the same honeybell. Which i had before
Going to take a pic of his wires. Where they go
Hopfully are the same
Other wise getsome one to do it
Thanks
 

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