I want to connect a salus rt500 rf to a valliant Eco tec plus boiler. There are the L and N wires and two other wires going from the 3 and 4 terminal in the boiler. I am unsure which one goes to the 'NO' and which one goes to the 'COM' in the thermostate? Currently those two wires go to the old thermostate 'SL off' and 'SL on'.
Connect sales rt500 RF to valliant Eco tec plus
- Thread starter Telwin
- Start date
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Boiler 3 - Stat Com
Boiler 4 - Stat NO
Boiler 4 - Stat NO
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