Wiring s plan from old set up y plan...?

[Notagainpike]

Hi all, so things are coming on now at last!
New 250 cylinder in loft all pretty much plumbed in.
F+E tank binned off, new ups pump, 2 new zone valves imstalled...
Now im up to wiring up, have done the immersion, so we have hot water, ive wired in the dual stat. I have me head roughly into what i think is correct...
Last night when i was pressing the advance on the controller, noet was happening....no red light to indicate and no boiler fire....
i did see when i moved the contoller, there are some jumper links on the back of the unit...do i need to move these when going from y to s paln??

 

[Deleted member 120897]

It sounds like you have an unvented cylinder - I’ve been told previously you’re not allowed to wire them up unless you hold G3 qualification - don’t know how much truth is in that.

 

[Notagainpike]

None of the plumbers that quoted do the electrical work, they all farm the wiring out. Not sure that g3 is rellevant to a spark tbh

 

[ShaunCorbs]

What timer do you have ?

 

[Notagainpike]

Drayton i believe. Il check....

 

[ShaunCorbs]

Lifestyle you shouldn’t have to move anything just wiring etc it’s known for the relays to stick / not work when there old

 

[Deleted member 120897]

Lifestyle you shouldn’t have to move anything just wiring etc it’s known for the relays to stick / not work when there old

So nothing to change from Y plan to S plan?

 

[ShaunCorbs]

So nothing to change from Y plan to S plan?

Other than removing the hot water satisfied at the stat and wiring centre there both pumped etc

 

[Notagainpike]

New stat on cylinder, so only 2 and earth to worry about, one to each valve as trigger...is that right?

 

[Notagainpike]

Sorry 1 to valve and 1 to control

 

[Notagainpike]

Ive commoned the neutal, earths and supplysvon the valves, thought i had the triggers sorted, and was happy i had the outputs correct, but something isnt quite right. I did remove a link in the junction box, as this would of joined to wires, which i thought was wrong

 

[ShaunCorbs]

Like this

 

[Notagainpike]

No! Not quite like that....i believe the gledhill diagram has the wires opposite on the stat

 

[Notagainpike]

Have just noticed that the room stat battery light is flashing.... would this cause a non operation

 

[ShaunCorbs]

Could do change the batteries

 

[Notagainpike]

New batteries. No difference.
Powered system on again when i got home, checked my wires,
No advance for hw or ch?
Strangely the temp on the boiler climbs up to the 90s, messes about fluctuating, pump is running, but boiler not on🤷🏽

 

[Notagainpike]

New batteries. No difference.
Powered system on again when i got home, checked my wires,
No advance for hw or ch?
Strangely the temp on the boiler climbs up to the 90s, messes about fluctuating, pump is running, but boiler not on🤷🏽

This is with both hw and ch set to off on the programmer

 

[ShaunCorbs]

Turn them on to timed then try advance

Pump Shouldn’t be running as the system is off eg timer is off

 

[Murdoch]

Have you got any test kit ?

 

[Notagainpike]

Have you got any test kit ?

Got a meter

 

[Notagainpike]

I think

Turn them on to timed then try advance

Pump Shouldn’t be running as the system is off eg timer is off

Yes, that works!
pump runs, but boiler not firing....
Temp at 76 but all pipes cold...

Im not sure if the new pipework is correct...

 

[Notagainpike]

I think

Yes, that works!
pump runs, but boiler not firing....
Temp at 76 but all pipes cold...

Im not sure if the new pipework is correct...

Boiler display not lighting up either....sure it did...when boiler firing...

 

[ShaunCorbs]

Are the oranges with the pump from the port valves and do you have 240 v on the brown to a port valve ?

 

[Murdoch]

Doesn’t your boiler need Pl and Sl ?

 

[Notagainpike]

Are the oranges with the pump from the port valves and do you have 240 v on the brown to a port valve ?

Are the oranges with the pump from the port valves and do you have 240 v on the brown to a port valve ?

Orange x2 to boiler black(sleeved with brown)
And brown to pump

 

[Notagainpike]

Doesn’t your boiler need Pl and Sl ?

😖 what do you mean sorry?

 

[ShaunCorbs]

Orange x2 to boiler black(sleeved with brown)
And brown to pump

So you don’t have a call from the room stat / timer as you won’t have 240v on brown

 

[ShaunCorbs]

😖 what do you mean sorry?

Permanent live and switch live

 

[Notagainpike]

Yes

Are the oranges with the pump from the port valves and do you have 240 v on the brown to a port valve ?

Have 240v at both browns

 

[Deleted member 120897]

Sounds like microswitch not making. Motorised valves new? Have you heard them open?

 

[Notagainpike]

Ive got my live from my prg. To my greys

 

[Notagainpike]

Sounds like microswitch not making. Motorised valves new? Have you heard them open?

Yeah, pair of new valves, il whip the covers off

 

[Deleted member 120897]

Have you got 240 on orange when testing between a known neutral/earth, when there’s a demand from programmer and a thermostat?

 

[ShaunCorbs]

Ive got my live from my prg. To my greys

No greys are perm live

Your live from the prog for heating goes to the room stat and then to the brown on the port valve

 

[Notagainpike]

Have you got 240 on orange when testing between a known neutral/earth, when there’s a demand from programmer and a thermostat?

I have

 

[Notagainpike]

No greys are perm live

Your live from the prog for heating goes to the room stat and then to the brown on the port valve

Sleeve donates a switched live...yes??

 

[ShaunCorbs]

Sleeve donates a switched live...yes??

Depends on colour brown live blue neutral etc

 

[Deleted member 120897]

I have

So to clarify:

At motorised valves you have a permanent 240 live on grey, 240 on orange and 240 on brown when calling?

 

[Notagainpike]

This was how it was on y plan...

 

[Notagainpike]

Depends on colour brown live blue neutral etc

Red sleeved brown

 

[Notagainpike]

So to clarify:

At motorised valves you have a permanent 240 live on grey, 240 on orange and 240 on brown when calling?

Yeah...

 

[Notagainpike]

This was how it was on y plan...

 

[Deleted member 120897]

Are those white wires still connected? Can you post a decent photo of those Wago connectors?

 

[ShaunCorbs]

Your missing something as the pump would run

 

[Notagainpike]

No greys are perm live

Your live from the prog for heating goes to the room stat and then to the brown on the port valve

Yes, sorry, my greys are fed from perm live, which also feeds the prog.
Output from the prog. For heating, goes to nothing currently!!!

 

[Notagainpike]

Black on 10 i believe is hw out from prog.

 

[ShaunCorbs]

Time for a rewire and start from scratch bell the existing cables out to see what you’ve got down stairs and adjust in the box to match

 

[Notagainpike]

Time for a rewire and start from scratch bell the existing cables out to see what you’ve got down stairs and adjust in the box to match

Hope you guys arnt busy tonight...🤣

 

[ShaunCorbs]

Just follow the picture I sent etc eg you will be fine

 

[Notagainpike]

Are those white wires still connected? Can you post a decent photo of those Wago connectors?

So, i think its all right,
I have my browns to the blue, and red,
Which run back up to the out puts from cylinder stat and room stat..

 

[Notagainpike]

So, i think its all right,
I have my browns to the blue, and red,
Which run back up to the out puts from cylinder stat and room stat..

 

[ShaunCorbs]

So turn the heating on prog should give you 240 to the room stat

Turn the room stat up you should have 240v on the 2 port brown and the 2 port lever should go slack

Correct ?

 

[Notagainpike]

So turn the heating on prog should give you 240 to the room stat

Turn the room stat up you should have 240v on the 2 port brown and the 2 port lever should go slack

Correct ?

Il check after my scampi and chips🤣
Just now, i called for hw, time i got to boiler, pump was running, boiler screen was live, but not lit up, boiler wasnt firing, cover off valve, lever had moved and pressing switch, pulled supply to brown, pump stopped, lever released, boiler screen shut down...

 

[Murdoch]

NB the colours of the cables except from the zone valves could be misleading to say the very least.

I recommend you confirm all the connections

does your boiler need PL and SL ?

 

[ShaunCorbs]

NB the colours of the cables except from the zone valves could be misleading to say the very least.

I recommend you confirm all the connections

does your boiler need PL and SL ?

Yes 330 does need both

 

[Murdoch]

Yes 330 does need both

I suspect the OP doesn’t understand this

 

[Notagainpike]

I suspect the OP doesn’t understand this

The op is not as dumb as you may think😉

 

[Notagainpike]

Right then....
Many thanks to all that helped. Much aporeciated...

Its only bloody fired🍾

 

[Notagainpike]

Im not sure tbh. What happened. I took front off boiler, messed with the sensors on flow and return, i took the cover off the board, removed it, contact spray and cleaned all connectors, found a couple of small areas of corrosion, reassembled.
Re bled rads, bled the air valve on the hw coil return.
It fired on hw demand.

Going to let it run and warm for a bit. Then try the hot water side of things...
May not be home and dry yet, but its progress.
Again many thanks for all your help.