Success
Traced grey wires back to junction box near HW cylinder. They were not connected to anything so wired up at the junction box to provide permanent neutral at Hive receiver end.
Grey to permanent neutral N
Brown to permanent live L
Looped to connect common L & 1
Black to 3
Works fine...
According to the contractors who istalled, they said the ST9100C is just for the hot water which based on my tracing the lines appears to be the case. I will just use the single channel controllers for the heating zones. Yes, not ideal.
The brown wire is attached to CM707 B terminal, and a black wire to the A terminal. I ASSumed. I have made no internal connections, simply attached the brown to the L terminal on the Hive faceplat and the black to the L terminal on the Hive faceplate.
I have 2 single channel hives to replace each of the CM707s. As I said in earlier post, I wired the L and N wires from the CM707 to the Permanent Live and Permanent Neutral on HIve single channel receiver. I push the manual CH button on the receiver, green light comes on but boiler doesn't...
Bernard - I'm being a bit thick here. In your wiring diagram on the multi channel hive, you show what looks like an internal loop between the Live terminal and the others. Would an equivalent not work on the single channel?
As a new user, I couldn't figure out how to start a new thread thanks.
Are you saying that the Hive won't work as a replacement in this case without running new wiring to the Hive faceplate? I have a single channel receiver.
Hi there,
I am attempting to replace my Honeywell CM707 thermostats with Hive Single channel receivers and thermostats. It is a new build property with a Logic System s24 boiler. There are CM707 thermostats up and down (2 zone) which control only heating. Near the boiler in the garage is a...