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?