connecting thermostat to a Worcester boiler

[jimb00031]

hi iv just installed a Worcester greenstar classic 29kw boiler and trying to to wire a dryton thermostat programmer to it, when switched on the boiler it reaches its own heat temperature and ignores the the thermostat .... if any one could help that would be great thank you

 

[Dan Robinson]

Why didn't the RGI fit thermostat?

 

[RF Lighting]

Because most of them don't know how to.

 

[Dan Robinson]

I ain't biting on that one

 

[jimb00031]

why wouldnt they mate ???

 

[RF Lighting]

Most boiler fitters are not electricians, and as a result either don't do wiring, or have a go and make a mess of it.

Were there / is there any other external controls for the boiler?

What sort of themostat are you trying to use?

What cable did you use between the boiler and the thermostat?

Which terminals did you connect it to on the boiler?

Did you remove the factory fitted link from the boiler?

 

[Dan Robinson]

Yet to meet a boilerman that couldn't wire up a boiler....

Haven't met a DIY'er with a calibrated FGA either .

 

[RF Lighting]

Really? The amount of botched wiring jobs I've had to sort out, I'd be amazed if more than 5% know how to wire it properly.

Why would a DIYer need an FGA just to work on the electrical controls?

 

[Dan Robinson]

Why would a DIYer need an FGA just to work on the electrical controls?

hi iv just installed a Worcester greenstar classic 29kw boiler

.

.

Can't comment on the installers you've met though bud. Pictures aren't that hard to follow surely.

Oh, wait...

 

[RF Lighting]

Oh whoops, completely misread the op, as trying to wire a stat to an existing boiler

You gas men really are cleverer than us sparks

 

[Dan Robinson]

Funny you should say that:

//www.diynot.com/forums/plumbing/baxi-105e-no-central-heating.373147/page-2


Mind you RF - you're a gasified Sparky no? In which case we'll let you off .

 

[RF Lighting]

Touche!

I wire on average a system a week for a local installer. Mainly seems to be s plan plus these days, but occasionally get a nice thermal store and zoned UFH installation to wire up.

Did a nice 4 zone system a little while back.

A relay per zone, so the boiler and pump won't run until the zone valve has opened.

Does that count?

 

[Dan Robinson]

Nice lacing there dude....

Did one recently - 5 zones, hot water and hot water priority (when tank was half depleted) through relays.

Wiring centre didn't look as neat as yours though - wanted half a day extra to tidy it up, but there other things that needed doing in the time allotted.

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• Dan Robinson
• 25 May 2013
• 5

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• Dan Robinson
• 9 Mar 2013
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• Dan Robinson
• 11 Mar 2013
• 2

Squeaky bum moment when I powered it up for the first time I can tell you


No - I'm not posting a picture of the finished box its a little embarrassing - but it works .