S Plan Help

[davesparks]

What is actually wrong with the system as it is, before you start mucking around with it?

 

[rmc86uk]

Circulating pump in cylinder cupboard went so that was replaced by a Plumber about two weeks ago. When pump was changed water ****ed everywhere and got onto one of zone valve which blew. He then got a second hand one from shed and fitted it. Now when he turns room stat down the heating stays on. Second hand zone valve must be faulty as well. The whole wiring centre box is broke and needs replacing. He wants to uofate update st699 programmer to a digital one. Got a complete kit for £140.

 

[davesparks]

Why not also get an experienced electrician to do the job?
Most of is will charge more to pick up the pieces of a DIY job than to do it from the outset.
Plus there is the small matter of electricity being somewhat deadly if you make the simplest of mistakes,

 

[rmc86uk]

I'm competent to follow a wiring diagram. It was just the system having two pumps that threw me. Thanks

 

[davesparks]

It's not just following a wiring diagram though.
You need to also understand the wiring regulations and how to apply them in a practical situation.

 

[rmc86uk]

I appreciate your help davesparks but this forum is about helping each other and exchanging ideas. I don't know your electrical background and you don't know mine. Straight away like most people on here you assume I am a DIY'er for asking a question. I used to come on here a lot but it's these remarks what annoy me.

 

[Corbs]

Circulating pump in cylinder cupboard went so that was replaced by a Plumber about two weeks ago. When pump was changed water ****ed everywhere and got onto one of zone valve which blew. He then got a second hand one from shed and fitted it. Now when he turns room stat down the heating stays on. Second hand zone valve must be faulty as well. The whole wiring centre box is broke and needs replacing. He wants to uofate update st699 programmer to a digital one. Got a complete kit for £140.

My Dads a Plumber and he's convinced there isn't one from the manufacturers instructions. I'm gonna have a visual check on it tomorrow and report back! Thanks.

thought you said your dad was a plumber?

 

[rmc86uk]

Plumber of 44 years. I've not spoke to him about it yet. Another Plumber does all my father in laws work but he's abroad at the moment.

 

[Leesparkykent]

Hi rmc, is it a big property with lots of rads on the central heating circuit?

 

[rmc86uk]

Yea. I've managed to find the correct documentation now. There isn't a pump inside the boiler just a standalone pump in the cylinder cupboard. The boiler manual says to wire the pump direct to the boiler pcb terminals instead of the wiring centre.

 

[Corbs]

Yea. I've managed to find the correct documentation now. There isn't a pump inside the boiler just a standalone pump in the cylinder cupboard. The boiler manual says to wire the pump direct to the boiler pcb terminals instead of the wiring centre.

yes that's right because of pump overrun to dissipate heat

 

[Leesparkykent]

Yea. I've managed to find the correct documentation now. There isn't a pump inside the boiler just a standalone pump in the cylinder cupboard. The boiler manual says to wire the pump direct to the boiler pcb terminals instead of the wiring centre.

Cool, easy then standard S-plan with pump overrun. What S-plan pack have you got out of interest?

edit: just seen op where it says honeywell.

 

[rmc86uk]

The current set up he's got a Honeywell ST699 2 channel programmer, Danfoss Room Stat, 1 x Honeywell zone valve and 1 x ACL zone valve. He wants to buy a complete new control pack which we can get a Honeywell one complete with digital programmer and wiring centre for £140. Next time I'm round I'll post a photo with the state it looks at the moment. It's bodge after bodge over the years. The wiring centre has broke with no cover and with having young grand kids he wants it all making safe.

 

[Leesparkykent]

Danfoss Central Heating S-Plan Control Pack - Hitchin Plumbing Supplies Limited

Danfoss pack for £100 and are just as good as honeywell IMO.

 

[rmc86uk]

Thanks. I'll take a look!

 

[Corbs]

Danfoss Central Heating S-Plan Control Pack - Hitchin Plumbing Supplies Limited

Danfoss pack for £100 and are just as good as honeywell IMO.

the only problem i don't like with danfoss is there time clocks just dont like the look and program of them so i just install drayton lifestyles much better and easy to change times even for the old people around

 

[Deleted account]

I appreciate your help davesparks but this forum is about helping each other and exchanging ideas. I don't know your electrical background and you don't know mine. Straight away like most people on here you assume I am a DIY'er for asking a question. I used to come on here a lot but it's these remarks what annoy me.

Your right there do seem to be a few annoying remarks made on this site which is why I stopped visiting for a while. Thought I'd come back to see if things are better. Seems not!

 

[Leesparkykent]

Paignton Pete and rmc86uk the moderators are working on stamping it out so stick around and keep posting. :smile5:

 

[Leesparkykent]

the only problem i don't like with danfoss is there time clocks just dont like the look and program of them so i just install drayton lifestyles much better and easy to change times even for the old people around

I don't mind them TBH, Honeywell is my 1st choice and Danfoss is my second. Whats put me off with the drayton lifestyle programmers is ive Been out to a few faults where Drayton has been installed and both times it's been the programmer sticking on. Saying that though I know British gas use Drayton lifestyle programmers marked up with their own logo so can't be that much of a common fault other wise they wouldn't use them.

 

[Deleted account]

Paignton Pete and rmc86uk the moderators are working on stamping it out so stick around and keep posting. :smile5:

Thanks leesparkykent I think I will stick around.

 

[rmc86uk]

Just had a look and Drayton kit is the most expensive. I'll leave it upto him what make he wants to use.

 

[rmc86uk]

Quick update for this problem that started a few weeks ago. When heating channel off and and hot water selected the radiators get hot. We put this down to a faulty zone valve on the CH. Fitted two brand new zone valves this morning. Tested and CH and HW worked fine when selected seperately. Now he's telling me that same problem is happening again with radiators getting hot when HW only selected. Any thoughts?

Thanks

 

[Corbs]

Quick update for this problem that started a few weeks ago. When heating channel off and and hot water selected the radiators get hot. We put this down to a faulty zone valve on the CH. Fitted two brand new zone valves this morning. Tested and CH and HW worked fine when selected seperately. Now he's telling me that same problem is happening again with radiators getting hot when HW only selected. Any thoughts?



Thanks

everything working as should? eg pump coming on with boiler etc? zone valves working

 

[rmc86uk]

Yes everything seems ok. I'm going round again later today to investigate more. Surely the zone valve has not packed in again?!

 

[Leesparkykent]

If your confident the controls side is functioning correct as Corbs said then it could be a plumbing issue, reverse circulation or cylinder isn't the last "T" on the return to the boiler.