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Hello I would be very grateful if someone can explain to me (in simple terms) how to connect my new Salus RT300RF wireless room thermostat to my existing Siemens RWB7 Programmer (6 connections -NL1234 with 4 wires from my Alfa CB40 Combi going to N&L & 3&4 - plus the earths of course. There...

Can you give me advice ? The wiring to the existing pullcord switch is 2 core - live and neutral (perm live?) only. The fan has 3 terminals N SL and L. How do I connect with just 2 wires. I assume it is ok to connect the low energy lights to the connector where the centre light used to be. Can...