Install Hive Dual Channel - Replace British Gas UP2

[Just1n]

I'm following another thread which stated that Dual Channel version of the Hive and British Gas UP2 are a straight swap however I'm finding that the terminal 1 is not wired which is hot water off and terminal 2 seems to be damaged. See picture. Not having any issues with boiler and thermostat controls the radiators without any issues. I've held off installing the Hive as I'm not 100% it will work without these terminals wired.

Any advice would be most appreciated.

 

[AndyPRK]

The damage one, I guess they are just using as a Joining terminal

HW off is only used with 3 port mid valves. No wires there is good news.


Ps don’t know why they didn’t use the Earth terminal

 

[Just1n]

hi, thanks for the update. If it is a joining terminal, will it impact the way the Hive controls the boiler as I'm hoping to reuse the existing plate. I believe terminal 2 is for hot water off. Yes, I was a bit confused by that, it connects to a fused switch.

 

[AndyPRK]

No it will be fine.

 

[Just1n]

Thanks for your help. I'll give it a go and let you know how I get on

 

[EFLImpudence]

Surely you will have to remove the existing thermostat wiring and rewire the back plate.

 

[AndyPRK]

Or move the T stat to maximum while you get it going

 

[Just1n]

Initially the central heating wasn't working until I changed receiver to gravity fed mode. All seems to be working as expected.

Yes thermostat currently at max, I believe you can move the live wire to terminal 3 to complete the circuit, this should circumvent the old thermostat.

Thanks again

 

[EFLImpudence]

I believe you can move the live wire to terminal 3 to complete the circuit, this should circumvent the old thermostat.

On the dual channel Hive terminal 4 is Heating ON, 3 is Hot water ON.

 

[AndyPRK]

Maybe the op meant the stat.

 

[Just1n]

Sorry yes I did as referring to the old thermostat wiring.

 

[EFLImpudence]

Surely you will have to remove the existing thermostat wiring and rewire the back plate.

Do it properly.