Heating wiring advice please

[Taylortwocities]

This has raised an interesting point; hope I'm not off-topic. I'm Level two with a couple of years site time heading to Level Three. What's the best way to get to grips with heating wiring? I understand how boiler pumps etc interact and I can read the S and Y but, as has been said many times in here, this does not a skilled Sparky make. What's your thoughts ladies and gents?

Honeywell do some excellent courses on the subject. You’ll find them on their web site.

 

[Leesparkykent]

Just learn the colours of the valves and what they do and the sequence of switching then all will become clear.

Two port valve.... Grey perm live, brown switch live from controls, blue neutral, green and yellow earth and orange switch live to boiler and pump..unless the boiler has pump over run then the pump is connected to the pump live terminal in the boiler.

Order of sequence/switching.... programmer, thermostat, valve, boiler and pump.

Say this is for the CH....CH on connects to common of room thermostat, switch live from thermostat connects to brown of the valve and orange of the valve connects to switch live of the boiler.

It's just a load of switching in series.

 

[Marti]

See some good reviews of the Honeywell course so that's me mixing it with the plumbers for a day. Do I have to wear my trousers half way over my arse to get in?

 

[Leesparkykent]

See some good reviews of the Honeywell course so that's me mixing it with the plumbers for a day. Do I have to wear my trousers half way over my arse to get in?

You might have to talk very slowly and try not to use any big words

 

[Marti]

Now...now ...I have met plumbers who can use a knife and a fork AT THE SAME TIME. Probably showing off to the plasterers