ecotec 24

  1. Barry Jackson

    Replacing Valliant VRT50 thermostat

    Hi, I want to replace my VRT50 thermostat with a Salus ST620VBC programmable thermostat. Installation looks simple, however my question is- Do I need to disconnect the existing wiring from the boiler (Ecotec Pro 24)? I believe it uses an eBus connection (not too sure what that means). Or can...
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