Plumb receiver and installing a single channel Hive

[Chris Thorncroft]

Hi

below is how the Plumb is wired up, i assume as the hive only has 1 live i put the live in and the loop into live and 1 the other cable into 3? as this is a glow-worm combi boiler.

just need some calcification that this is the right way.

Thanks in advanced.

chris

 

[Madrab]

What model of glow worm? If the boiler needs a switched live then you would bridge the live into common and then run the switched live out to the boiler.
The diagram you attached is for an on/off boiler and is not really the norm these days. I would suggest that your combi boiler will have a zero volt contact and that's how it would be switched by the hive receiver.

 

[Chris Thorncroft]

Hi this model is a glow-worm energy 30c

chris

 

[Madrab]

That boiler has a zero volt (24v) contact, that's what would usually be switched by the single channel hive. It also has a switched live (SL) option.

These days, it is preferred to not use a powered live to actually switch the boiler on and off via a switched live as your wiring diagram shows, chances are your current setup is sending a SL to the RT terminal on the boiler, so the boiler stays on all the time but is fired up by a SL from a programmer/stat calling for heat.

I'd suggest you may need someone in to ensure it gets wired correctly.

 

[Chris Thorncroft]

Hi

here is the picture of the wiring. I assume the live loop goes to one and the other to 3

 

[Madrab]

Yup. The single channel Hive receiver can switch up to 240V, so the grey on the B terminal would be on 3 on the hive with a live link from the live terminal to the common (C) terminal.

 

[Chris Thorncroft]

On the connecter there was 2 L connections so would that also mean 3 wires into the 1 live?

 

[CBW]

No, just the 2 lives into Live on Hive, or if it’s 230v switching, then put the one from the boiler pcb into common (terminal 1), or else just link it.

 

[Madrab]

Ermm .... Yes to keep the cabling the way it is .... 1 live in from the FCU, one out to the boiler and the link to the common terminal, the hive receiver terminals should be able to take that no bother.