I’m looking to install a basic WiFi thermostat into a holiday home.
The existing thermostat has 4 wires into connectors labelled 1 to 5.
I have a attached photo.
The manufacturer has provided a wiring diagram for the WiFi stat but I’m unsure which colour wire should go into which terminal. Please see attached diagram.
I would be extremely grateful if someone could advise which coloured wire should be placed in which terminal on the new stat.