Anyone good with boilers / an Electrician?

[TheBlueRaja]

Not sure if im gonna get anything out of this but here goes. I have a Vokera 20/80 RS boiler for which i have just bought an analogue timer for, however despite being told it comes with instructions, the instructions said "consult the manual" which i dont have.

Anyhoo, included is some shots of the wiring shematic and circuit board, and im hoping one of you lot might be able to help me.

Any ideas?

Image Here..

EDIT: More pitcures can be provided if necessary.

[MovedGoalPosts]

What is the make and model of the timer. There may be a wiring diagram on the net somewhere if you google for it ???

You need to be careful with anything directly fitted into boilers. Technically that should only be touched by a CORGI registered fitter.

[iadom]

If it was a washing machine or similar I could have helped, try this member. He is a qualified heating engineer.



http://www.cableforum.co.uk/board/member.php?u=4581

[Nikko]

I re-wired my system to incorporate a second pump via a relay - Potterton were amazingly helpful with diagrams - I cannot answer for Vokera but Here is a contact from their (temoprary) site

ok - I have the same boiler, but with a digital, rather than an analogue timer - I'm assuming the connections are the same (the wire colours are)

white/red wire - remove existing double black wire from back of timed/summer/constant switch, fit double connector onto terminal, connect red/white wire & refit original double black wire.

blue wire - connect to bottom terminal marked 'N' on main terminal strip ( marked NL123N)

white wire - connect to terminal '1' on main terminal strip.

Red/black - connect to spare terminal on back of timed/summer/constant switch.

usual disclaimers apply (not my fault if it doesn't work or blows up, basically ) but I hope that makes sense.

[TheBlueRaja]

Homealone, you couldnt supply a photo of the back of your board could you?

Just so that i can see it?

Originally Posted by theblueraja

Homealone, you couldnt supply a photo of the back of your board could you?

Just so that i can see it?

I can tomorrow - I'm having the annual service inspection, in the meantime, the diagram on the little instruction leaflet looks exactly the same as in your piccy.

[paulyoung666]

Originally Posted by MovedGoalPosts

What is the make and model of the timer. There may be a wiring diagram on the net somewhere if you google for it ???

You need to be careful with anything directly fitted into boilers. Technically that should only be touched by a CORGI registered fitter.

only need to be corgi registered when making gas connections

[TheBlueRaja]

Hi Homealone,
That would be great if you could, i am having difficulty understanding your instructions for the Red/White and red/black wires.

On my boiler, the double black plug goes into the bottom terminal (the "on" postion) on the Power switch, not the Timed/Summer/Const switch which you indicate.

It looks like the following:-

Power

0 (Off) - Blue Cable

Middle position - Brown Cable

1 (On) - Double Black

One Double black cable goes to the Timed/Summer/ Const Switch at position 0 (Timed) and the other goes off to the terminal strip.

I have included a diagram to make things a bit easier to see, perhaps it will help - feel free to butcher it

EDIT: By the way - wat do you mean by "the diagram on the little instruction leaflet" - what instruction leaflet do you mean?

Originally Posted by theblueraja

Hi Homealone,
That would be great if you could, i am having difficulty understanding your instructions for the Red/White and red/black wires.

On my boiler, the double black plug goes into the bottom terminal (the "on" postion) on the Power switch, not the Timed/Summer/Const switch which you indicate.

It looks like the following:-

Power

0 (Off) - Blue Cable

Middle position - Brown Cable

1 (On) - Double Black

One Double black cable goes to the Timed/Summer/ Const Switch at position 0 (Timed) and the other goes off to the terminal strip.

I have included a diagram to make things a bit easier to see, perhaps it will help - feel free to butcher it

EDIT: By the way - wat do you mean by "the diagram on the little instruction leaflet" - what instruction leaflet do you mean?

I got a little instruction leaflet with the timer, when the boiler was first installed, I'm a bit snookered for a scanner, atm, otherwise i would put up a copy.

It sounds like they expect you to remove the connector on the timed/summer/ constant switch taking the black wire from the main on/off switch & replace it with a double connector, which then takes the red/white wire from the timer and the existing black wire, as well.

It should be a lot clearer when the engineer takes it all to bits, tomorrow, when I should be able to put up a couple of piccies and /or a diagram.

[TheBlueRaja]

Nice one - thanks!

/wonders whether to call the Glasgow fire brigade and put them on standby

[TheBlueRaja]

That maybe not a bad idea...

[zoombini]

I think it's worth pointing out that the timer connections may well require voltage free contacts & that no voltages should be supplied to them.

or something like that (as it says in my manual).

I'm doing a similar job to mine soon.

p.S. just in case anyone mentions it, this IS allowed to be done by a DIYr under the new electricity in the home regulations that came into force on 010105

okey dokey, here's a pic of the circuit board, I hope its ok - it's hard to take a steady picture perched on one leg up a step ladder

as for the 'double black' connection, it looks like my instructions were wrong, because as TBR said, that is connected to the on/off switch, not the timed/summer/constant, one. The red & white wire from the timer is attached to the same terminal as the double black wire on the on/off switch.

the red & black wire from the timer connects to the top terminal on the timed/summer/constant switch (top as in furthest away from you)

so

3
2
1

you connect to 3.

I hope that helps?