Fitting a Hive single channel receiver to a Vokera Boiler

[skempy]

Hi Wanting to fit a Hive programmer to my Vokera Compact combi boiler and wondered if the attached wiring diagram configuration

would work.

 

[ianmcd]

nope completely wrong, which compact model do you have there are loads of them, dont attempt to wire up as your pic

 

[skempy]

Hi Vokera Compact A DIN Combi boiler 25kw

 

[ianmcd]

OK take
L&N from boiler to L&N on hive
The black and red wires from CN5 on the boiler pcb go to 1&3 on the hive, either way round doesnt matter, DO NOT make any links your switching is 24 v and you will damage the boiler if you do it wrong

 

[skempy]

Thank you for that info. So it should be as -

 

[ianmcd]

yep that is it, if there are existing wires in CN5 these are either cut or removed, and replaced with the hive which will take control of the boiler

 

[skempy]

Many thanks, you are a star!!

 

[skempy]

Just want to be sure! So, the four wires from the boiler Brown, Blue, Red and Black, all come from the 'Connector Clock' shown in the attached wiring diagram?

 

[ianmcd]

yep that is correct, the clock is by-passed and the boiler is now controlled by the hive

 

[skempy]

Much appreciated!

 

[Madrab]

Do you have an analogue clock attached? That would be unplugged.

Power off the boiler, ground yourself on the case before you get into at the PCB. Normally I would loosen the 2 terminal screws on CN5 and the L & N on the boiler, remove the red, black, blue and brown wires for the plug, then wire the hive exactly as the plug would be. Use a length of 5 core cable > brown and blue + (E) from the L&N on the boiler to L&N + (E) in the hive and the gray and black from CN5 to terminals 1+3 on the hive.

Better off taking the L&N from the boiler as then it's all covered by the same power switch and fuse when it comes to safe isolation.

 

[ianmcd]

gray and black from CN5

Hi Rab, have wired many of these but never seen grey and black from CN5 to the Tyco plug, always been red and black on a Compact A, you learn something new every day

 

[Madrab]

ever seen grey and black from CN5 to the Tyco plug

Not all Ian, you're right, all the one's I've seen are red and black too.

I was just suggesting that the OP uses a 5 core cable to wire the power and CN5 connections all in the one cable from the boiler to the hive receiver to keep it tidy. The 5 core are invariably, Brown, Blue, G/Y, Grey and Black. So I always disconnect the plug cables and then use the Brown and Blue as normal for power from boiler to receiver and then the Grey and Back from CN5 > 1+3 for the switching.

 

[ianmcd]

Not all Ian, you're right, all the one's I've seen are red and black too.

I was just suggesting that the OP uses a 5 core cable to wire the power and CN5 connections all in the one cable from the boiler to the hive receiver to keep it tidy. The 5 core are invariably, Brown, Blue, G/Y, Grey and Black. So I always disconnect the plug cables and then use the Brown and Blue as normal for power from boiler to receiver and then the Grey and Back from CN5 > 1+3 for the switching.

AH I get it now, I thought you meant internal wires

 

[ianmcd]

OP you can but 0.75mm2 5 core flex by the metre at B&Q makes life a lot easier if you use the correct stuff, its not expensive