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Hi,
I bought a hive dual channel (heating AND hot water) in the sales, but I have a combi boiler (Valiant EcoTec Plus831) so don't need the hot water option.
My problem is that I'm not sure which way to hook up the heating on/off wires to the new Hive thermostat.
The existing thermostat is a Honeywell CM900, wired like this:
Using the Hive diagram
I have wired up the thermostat like this:
![Hive wiring.jpg Hive wiring.jpg](https://cdn.diynot.com/data/attachments/156/156485-8ffd326d522bf734641d1fcc3c3a503a.jpg)
Does this make sense? I wasn't sure if the black or the grey should go to heating on, and whether a connection to heating off was needed.
Thanks in advance for any advice!!
I bought a hive dual channel (heating AND hot water) in the sales, but I have a combi boiler (Valiant EcoTec Plus831) so don't need the hot water option.
My problem is that I'm not sure which way to hook up the heating on/off wires to the new Hive thermostat.
The existing thermostat is a Honeywell CM900, wired like this:
![Honeywell thermostat.jpg Honeywell thermostat.jpg](https://cdn.diynot.com/data/attachments/156/156484-868e4525c01d1e4829a43d38f0466f31.jpg)
Using the Hive diagram
![Hive wiring diagram.jpg Hive wiring diagram.jpg](https://cdn.diynot.com/data/attachments/156/156486-667e6c9dcf93995cdc92bc3dac2c6f5a.jpg)
I have wired up the thermostat like this:
![Hive wiring.jpg Hive wiring.jpg](https://cdn.diynot.com/data/attachments/156/156485-8ffd326d522bf734641d1fcc3c3a503a.jpg)
Does this make sense? I wasn't sure if the black or the grey should go to heating on, and whether a connection to heating off was needed.
Thanks in advance for any advice!!