Learning Control Wiring

[333rocky333]

As an electrician of over 25 years , I would like to pick up the BASICS of Central heating wiring ie Timer, honeywell valves and stats.

NOT INTERNAL BOILER WIRING though.

I will rarely do the work but its something I would like to know.
Would I need to be corgi if I only touched the external control wiring etc

Is this something you could learn the basics of through reading up, or are there special courses for this.

Many thanks and respect to those of you that can suss it out

 

[twgas]

try this

http://www.tlc-direct.co.uk/Technical/DataSheets/Horstmann/Pics.pdf

 

[gas4you]

Honeywell often run courses that are free or nearly free. Check their website for further details.

 

[seco services]

would you need to be corgi ? not unless they are gas instead of electric cables.

do as most of us do learn as you go along. i would of thought most elecys already knew this, surely if you can wire a house you can wire up heating controls.
if you take each unit a programmer,room stat,cylinder stat, mot valve, they are basically only on/off switchs diverting power where needed.

 

[333rocky333]

Thanks all

Dont really do houses, only when they have faults and the plumbers say its a power fault about two a year.

Usually find a double box with loads of connecters in and aint got a clue what there for or where there going.
But hopefully will soon.

Only do commercial mainly and they get in the heating contractors we just check the supply.

 

[bengasman]

I would recommend a crash course from Honeywell too, in the end it will be a lot quicker and easier to learn the practical side if you had the theory, including an explanation of what does what and why, taught by an expert first.
Setting up a standard y-plan or c-plan is dead easy, sorting out the mess when you find a combi with 2 heating zones, 2 underfloor zones and a cylinder when it is already there, but not working and nothing marked, sleeved or indicated is a different story.
Had one of those the other day and now got a bald patch from scratching my head.

 

[333rocky333]

If there is such a thing as a standard house , what is the most common wiring plan your likely to come across

I see Y and S plan etc.
Look baffling when all together,So want to do one at a time, but don't really want to learn the ones too hard I will leave them for you lot.

The house today was a friends house
It had
some sort of wall mounted boiler
Cylinder stat
Pump
Honeywell Valve with three ports ( T )
Wall stat
Potterton 2000 timer C/H and H/W

Can you tell the plan by that

The rads were too hot and they were guessing roomstat

I Said I did not know and to me it seemed like the valve
the manual lever appeared to be easily moved with the power on and also off.
It did not at anytime motor.

I used to see these in the pubs and from past, it always seemed to be the valve jammed which done the head in.
The plumbers used to drop the head off and force the valve open,
They were straight through valves zoning the bars so werent too important
I used to remove them but When I last tried removing a head, water came out for some reason so dont touch em now.
Can the heads be taken off still
or are they diff now to the old ones.
I read some had Dimples on them!!!!

The Orange And White were both live and I assumed the blue was neutral
This is proberly basic stuff to you but believe me I know a lot of sparks that cannot do it for some reason but can do 415v etc no problem.
Sorry to be a nuisance
Thanks

 

[oilman]

That's a Y plan. Imagine water going up the Y and splitting two ways. The S plan is Separate valves.

This is proberly basic stuff to you but believe me I know a lot of sparks that cannot do it for some reason but can do 415v etc no problem.

A real irritation, I can do these in my head, but because of part P I have to get someone in who knows nothing about it. Safer that way, apparently.

 

[333rocky333]

[quote
Had one of those the other day and now got a bald patch from scratching my head.[/quote]

Seen it alot in the pubs etc
They pull all the wires out first
Then say get a spark in and then go.

Think I will stick to the basic stuff.
We have enough sorting out other sparks work.

Ps
how do you put quote in the box like other posts.

 

[oilman]

how do you put quote in the box like other posts.

Look here

 

[333rocky333]

[/quote]

Look here[/quote]
Tried that already but get this
Dont know what i am doing wrong[/list][/list]

 

[bengasman]

you are probably deleting too much

 

[oilman]

Take the "/" out of the first "quote"

Just click the button above marked "quote", write the bits. then click it again.

 

[fitz1]

Take the "/" out of the first "quote"

Just click the button above marked "quote", write the bits. then click it again.

so thats how you do it.(quote , i mean)

 

[333rocky333]

Take the "/" out of the first "quote"

Thanks