Thanks @stem appreciate your help.
Yes, that's what I meant by conventional - I was trying to differentiate from a combi boiler which ours it not. Thanks for clarifying that, it's an 'S' plan system with the boiler connected to the CH and HW cylinder.
That makes sense then re: the...
If it helps at all, this is the layout of the control unit's connections - the labels are obscured by the cables on the actual device so thought this might be useful. Cheers.
Hello, my Salus wi-fi Gateway has finally died and it's time to replace the unreliable system with a Nest.
Could anyone advise on wiring the Nest heatlink to replace the iT500 RX receiver unit please?
The current wiring is as per the images attached, as follows:
1. Red cable from CH COM to CH...