I have looked at wiring a thermostat to a new boiler, a drayton LP811 to a logic esp1 30kw. On the previous boiler the thermostat was connected directly to the boiler isolation switch and than connected to the boiler. I was under the impression there was only suppose to be 2 wires that go straight from thermostat to boiler, the neutral and live which will also power the thermostat. But i have 4 wires coming out of the ground which belong to the thermostat? 4 core, red blue neutral and black i believe
Confused correct way to have the thermostat connected.
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