Wiring a Hive Thermostat to a Old Firebird Boiler

Quiksilver

Hi all,
I'm hoping someone can give me a few pointers here, i'm trying to install a Hive Thermostat to our old Firebird 50/90 (I know i should upgrade but the boiler still works fine). Anyways, i'm trying to figure out the permanent live/neutral, and heating on and off wiring points. Their is no external controls with the boiler, just the little internal timer. I have no Hot water circuit so it just CH on and off at the moment. I'll attach a photo of the wiring, if anyone has seen this kind of setup and can point me in the right direction i'd appreciate it.

The only other way i can think of finding the right points would be to check with a multimeter when it's running to see where power is when the timer turns on the boiler.

Johnnywaters

Hi

I'm not familiar with the hive stat.

It might be a matter of breaking the wired link in the drawing and wiring a base unit from that.

Quiksilver

Ok,
So i took a few reading and got the following voltages (see attached).
I think i would be right with the following wiring (also see second attached pic).
Would i be incorrect with this wiring?

Quiksilver

Well,
i did and didn't succeed with my wiring setup. Hive seems to be working correctly, firing the burner when demand comes on. The only problem is the the permanent live and neutral i've used is the mains coming into the boiler not from the main power switch on the boiler, so the hive can fire up the burner while the main power switch on the front of the boiler is turned off. I have to hunt to find the 240V from the switch, which looks like it might be a pain to find as all the back where the switches and timer are are closed off.

Johnnywaters

Hi

I'm not familiar with hive but that's the dual channel receiver which you don't need.
Its not obvious to me how that wires into your boiler correctly if it needs a permanent supply.

On the single channel receiver base there is a separate contact(1,3) which would wire into the boiler after the timer
https://i.imgur.com/Ub7aV2tl.png

Maybe someone familiar with hive knows more.

Quiksilver

I went with the dual channel receiver because when i eventually change the boiler i'll get a three way valve installed and will want a hot water circuit.
I seem to have everything running ok now, i opened into the case and teed off the mains on off switch so now when i turn the boiler off it cuts power to the receiver also so it won't be able to turn on the burner.

FirstOnTheBike

@Quicksilver did you figure this out? I have the same boiler and want to do the same