May I please ask a question about wiring domestic heating controls.
I have 2 separate controllers controlling 2 separate heating systems.
Each controller can send a 240v "call for heat" signal to the boiler via a single core cable.
What device do I need to allow the separate input wires to be connected to the boiler whilst preventing the voltage from one wire passing back up the other wire?
Many thanks for any advice
I have 2 separate controllers controlling 2 separate heating systems.
Each controller can send a 240v "call for heat" signal to the boiler via a single core cable.
What device do I need to allow the separate input wires to be connected to the boiler whilst preventing the voltage from one wire passing back up the other wire?
Many thanks for any advice