Thanks for the reply. Yes I observed that as well, used a 3 core cable and the earths been used as signal wire, the boiler was fitted around a year ago and Its not the only part of the installation that I’ve raised an eyebrow over. There’s a few bits where it’s been fitted as convenient to the...
N - N
L - L
L-A (link) - L-1 (link)
B - 3
Would that be right ?
It’s the 230 link that’s got me confused, will that go from permanent live into terminal 1 (common) on the hive harness ?
Looking to replace the as supplied centre controller with a Hive unit. Boilers a Baxi 830 combi.
The wirings got me a bit stumped as other installations I’ve seen have a 4 wire connection, this one has 3 wire with a link between the 230v live and the common wire.
Do I just move this across to...