Installing Hive to Glow Worm 28c

[mailliw]

Hi.

Our new house has a new boiler - Glow Worm Essential 28C - and I'd like to put my Hive (original version) in. I took it out of the old boiler, replacing it with the old Honeywell stat, but am a bit confused by the new boiler's wiring.

The manual (here) talks about external controllers, which should be plugged into: B Off (Boiler off), RT, and eBus. This looks like this:

But the Hive needs power, live, neutral and so on:

Here's another part of the manual

So my question is - should I be putting the Hive wires into the above diagram, or the other one - or both?

Where in either diagram is the switch to turn the boiler on/off from the Hive?

Thanks for any pointers!

Cheers

Will

 

[OLLIE20]

Why not just call BG upgrade to Hive 2 for £99 and they will fit it properly for you , job done

 

[mailliw]

It's a good idea, one I've considered. But am extremely short of money and won't be able to afford it for a while. And I enjoy learning new things!

If anyone's willing to help advise...shout.

 

[sterowley]

Bottom diagram and remove the link on the upper picture

 

[mailliw]

Thanks. So:

L to L
N to N

Where would (1) Common, 2 (Heating off), 3 (Heating on) plug into in that bottom picture?

 

[petit_pablo]

You link live to common on the hive backplate. Heating on goes to RT and you don't need the heating off wired to anything.

 

[mailliw]

You link live to common on the hive backplate. Heating on goes to RT and you don't need the heating off wired to anything.

Thanks @petit_pablo. So to confirm:

Hive Common to boiler L
Hive Heating On to boiler RT
Hive Permanent Neutral to boiler N

Hive Heating Off - not used
Hive Permanent Live - not used

Sorry for the questions and thanks for your help.

Will

 

[petit_pablo]

Thanks @petit_pablo. So to confirm:

Hive Common to boiler L
Hive Heating On to boiler RT
Hive Permanent Neutral to boiler N

Hive Heating Off - not used
Hive Permanent Live - not used

Sorry for the questions and thanks for your help.

Will

nope
Boiler live to hive live
boiler neutral to hive neutral
link hive live to hive common
boiler RT to hive heating on

 

[mailliw]

OK. And by "link Hive Live to Hive Common", on the Hive backplate I should screw Common into Live so they use the same socket - is that what you meant? No.1 into L, in the pic below

 

[petit_pablo]

Wheres that black wire come from?

 

[mailliw]

Don't ask me! This is what it looked like when I took it off. So presumably I cut that black wire, and loop it into the L screw to create the link

 

[petit_pablo]

Without knowing where its connected i wouldnt just cut it. Was the hive already wired up? If so it may already be wired corectly so it just needs that grey into RT

 

[mailliw]

No. I've taken it from one house to our new house, so it's not connected anywhere yet.

Last question. Here's my electrics. Circled the main stuff. Do those wires currently in L and N etc stay there, and the Hive wires join them?

Sorry to be such a cretin.

 

[petit_pablo]

ok in which case yes just cut the black and loop it into the L.
As for the boiler wiring, if you can get hive wiring into that block, great. Otherwise you'll have to take LNE through the hive first then into the boiler.

 

[mailliw]

All done. Thanks @petit_pablo hugely for all your help. Brilliant! And nice to learn a few things along the way too. One q - why did we need to link the common with the live?