Boiler wiring mains and thermostat.

[Eigdoog]

Hello,

So ive got to wire up my boiler and just need a little help!

So ive got a firebird c26 outdoor boiler with two sets of wires coming from it, one looks 2.5mm 3 core (blue, brown, green/yellow) and the other is 2.5mm 4 core (brown, black, white?, green/yellow)

I think there 2.5mm anyway as it seems unsafe to have 1.5mm for a boiler but then i find 2.5mm is over kill for a thermostat

Now i think the 3 core is the mains (i hope so), can this be a spur from a socket or does it need its own power source from the fuse box?

The 4 core, is that the thermostat wiring? If so how do i go about wiring this up? Ive found this //www.diynot.com/wiki/electrics:how_to_replace_a_room_stat but i am still unsure on this.

Many Thanks Eigdoog.

 

[EFLImpudence]

You can take the supply from a socket circuit through a Fused Connection Unit fitted with a 5A fuse.
From the load side run the cable to a wiring centre (just lots of connectors in a pattress box will do).

Take cables from boiler, thermostat etc. to this box and connect appropriately.

It is not possible from here to tell which cable/wire is which but I think likely the 2core+e is the pump and 3core+e is the boiler.
Another cable would come from the thermostat.

HERE is the manual. See page 20.

http://www.heatandplumb.com/brochure_downloads/firebird/ENVIROMAX-MANUAL.pdf

 

[RF Lighting]

That cable is either 0.75mm² or 1.0mm²

It's not possible to tell what those wires do, nor is it a good idea to guess. Why is there wiring already attatched to your boiler? Normally you would install this as part of the wiring up process.

 

[Eigdoog]

Many thanks for the replies.

There are wires there as this is a second hand boiler.

Looking at the manual helps thanks but think ill need that and the boiler in front of me to sort it out.

 

[SaladFingers]

Hello,

So ive got a firebird

I had a Corvette.

 

[EFLImpudence]

I had a Corvette.

Sure it wasn't a Chevette?

 

[SaladFingers]

I had a Corvette.

Sure it wasn't a Chevette?

Absolutely, but my brother had a Chevette, tea coloured, lovely car.

 

[RF Lighting]

Many thanks for the replies.

There are wires there as this is a second hand boiler.

Looking at the manual helps thanks but think ill need that and the boiler in front of me to sort it out.

Is this a straight combi boiler, or an S or Y plan system?

 

[Astra99]

We used to deliberately mis-pronounce Chevette as Shove-it Those were the days, the late 1970s!