S plan advice please...

[onions1066]

Aye, I think I'd be tempted to disconnect all wiring relating to DHW and concentrate on getting just the CH working as it should then concentrate on the DHW a bit at a time testing as you go.

If you try to look at the whole thing at once you can end-up not being able to see the wood for the trees, so break it down into smaller more manageable bits.

And remember; when you're up to your ar$e in alligators it's difficult to remember that your first priority was to drain the swamp.

I agree re it's sometimes quicker to just disconnect and reconnect, but to answer the other question if you connected the cylinder stat backwards it would make connect on fall rather than rise so that wouldn't be the cause of the boiling water.

 

[Geordie Spark]

I agree re it's sometimes quicker to just disconnect and reconnect, but to answer the other question if you connected the cylinder stat backwards it would make connect on fall rather than rise so that wouldn't be the cause of the boiling water.

Please bear with me here.

Having spent an afternoon with Tidyboiler I'm a bit dazed & confused now (but happy) but surely you WANT the cylinder stat to close on temperature fall. That would then open the zone valve, the micro switch on the zone valve would fire the boiler, the water in the cylinder would get hot, then the cylinder stat would open and the return spring on the zone valve would close the valve and open the contacts on the micro switch shutting the boiler down.

 

[sythai]

Got the plumber to fire it all up when we were all done on site the other week and confirmed happy, CH as should be, but presume he didnt wait to check DHW temp.

Its only when customer popped along at weekend to try out that they discovered boiling hot water.

Hopefully shouldn't be too much trouble to sort.

Thanks for all your help.

 

[tidyboiler]

Please bear with me here.

Having spent an afternoon with Tidyboiler I'm a bit dazed & confused now .

I don't recall you complaining earlier.............................................. pet. :dita:

 

[Geordie Spark]

Got the plumber to fire it all up when we were all done on site the other week and confirmed happy, CH as should be, but presume he didnt wait to check DHW temp.

Its only when customer popped along at weekend to try out that they discovered boiling hot water.

Hopefully shouldn't be too much trouble to sort.

Thanks for all your help.

The lazy sod SHOULD have checked it all AND instructed the customer how to use it before he left !!!

- - - Updated - - -

I don't recall you complaining earlier.............................................. pet. :dita:

I wasn't and I'm not ............................................. pet

 

[onions1066]

Please bear with me here.

Having spent an afternoon with Tidyboiler I'm a bit dazed & confused now (but happy) but surely you WANT the cylinder stat to close on temperature fall. That would then open the zone valve, the micro switch on the zone valve would fire the boiler, the water in the cylinder would get hot, then the cylinder stat would open and the return spring on the zone valve would close the valve and open the contacts on the micro switch shutting the boiler down.

You know what I meant :6:

 

[solarsavings]

Sounds like a new install so the valves will have been locked open manually to aid fill/venting and not opened afterwards. Are they danfoss?

 

[Geordie Spark]

You know what I meant :6:

I'm confused .com

 

[onions1066]

Close on rise open on fall

 

[sythai]

Turned out to be a 'fooked' cylinder stat..... not breaking when turned right down

 

[Geordie Spark]

loving the terminology!
is that also known as a 'tidy boiler'?

Auf wiedersein pet question.? - Yahoo UK & Ireland Answers

 

[Geordie Spark]

Geordie charm at its finest! Auf Wiedersehen Pet - Oz makes a move on Joy Chatterley - YouTube

Look, learn and weep ye Southern wusses!!

 

[R G]

Geordie charm at its finest! Auf Wiedersehen Pet - Oz makes a move on Joy Chatterley - YouTube

Look, learn and weep ye Southern wusses!!

Bloody good watching all that again ,,,,,