Need help understanding hive wiring diagram for heating system

wiring a Hive to a combi boiler’s not too bad once you break it down. The Hive wiring diagram can look a bit confusing, but here’s the gist:

1. Live (L) and Neutral (N): These connect to the mains supply, usually straight from the boiler to the Hive receiver’s L and N terminals.
2. Heating On (3): This is where you connect the wire from the boiler’s thermostat connection to tell it when to fire up the heating.
3. Hot Water Terminals: Leave these empty since a combi boiler handles hot water itself.

I’d add some images to make it clearer, but I’m guessing this forum doesn’t support that

I’ve done plenty of Hive installs, and for a combi boiler, it’s pretty straightforward. Here’s how it goes:

1. Live (L) and Neutral (N): Connect these from the boiler to the Hive receiver – no surprises there.
2. Heating On (3): This is the key one. Wire the thermostat connection from your boiler to this terminal. That’s what tells the boiler to fire up.
3. Hot Water Terminals: Leave them empty since your combi boiler doesn’t need them.

One thing to double-check – some boilers need a link between Live and Common (1) for the receiver to work properly. Check your boiler manual to be sure.

I can post some images to help explain this better after my third post – forum rules and all that. 

DD

Wiring a Hive thermostat to a combi boiler can seem tricky, but it’s pretty simple once you get going.

watch the video here:

https://www.youtube.com/watch?reload=9&v=YZQzzxv4hKI&ab_channel=CPUtilitySolutions