HIVE wiring confirmation

[MarkGolf]

Hi guys,

I have just got myself a HIVE and am setting about installing it all. Seems simple enough and I thought I would give it a go myself.

This shows my existing wiring along with existing controller.

This diagram is for the HIVE, I have the dual channel example.

To me, it looks like I do not have to change the wiring on the existing backplate as someone mentioned that the hive will work just like my existing one.

I just want to make sure that is the case before I go ahead?

Thanks,
Mark

 

[muggles]

You shouldn't even need to change the backplate AFAIK - I think Hive just clips straight on

 

[evsy01]

No need go replace back plate, if you really want to the wiring is identical.

 

[MarkGolf]

Thanks guys,

All hooked up. The only issue is that the central heating doesn't seem to come on. If I set the target temp to 32degrees and turn the heating on, via the boost function or the button on the receiver, nothing happens. If I do the same for the hot water, the boiler comes alive...

Any ideas?

 

[Johnmdc]

Do you have a Y plan (one valve with 3 pipes) or a S plan (2 valves) system?
Could you have the heating on on it's own before?
Do you already have a room thermostat in?

 

[MarkGolf]

Hi John,

I'll need to check on the Y and S plan once I'm home this evening, I have no idea right now.

Yes I could, I would always be able to switch the heating on on it's own.

I did have a room thermostat, the typical dial one, this had 4 wires going to it, live, neutral, ground and a grey one. I have since taken this down since fitting the hive but wiring is still accessible for the moment. Does the grey need to be joined to something?

Thank you
Mark

 

[ianmcd]

Two of the wires will need to be linked but you will have to trace them you cant go by colours, is there not a wiring diagram on the back of the old thermostat ?

 

[MarkGolf]

Hi Ian,

Thanks for the reply.

Yes there is a wiring diagram. From memory, black was neutral, brown was live and grey was "call for heat". The ground was ground.

Thanks

 

[ianmcd]

you need to join brown and grey