Can an Extension Kit do a ZeroVolt link ?
Best Answer
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To power the receiver, use N L Earth.
For a voltage-free relay/switch, use COM and NO.
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Answers
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Or does anyone have the pinouts for an Extension Kit ?
My gut feeling is that a relay just closes two pins creating a loop / short (hopefully)0 -
Exactly what I hoped and thought - happy days.
The reason for the question is that I'm planning a Heatpump installation for this summer, with a Vaillant AroTherm+. The AroTherm+ can be controlled by a "normal" ZeroVolt (Volt Free) Room Stat.
Therefore, the Extension Kit, via COM and NO, will do exactly the same thing as a Room Stat.
While most people are going from a traditional boiler which may heat for an hour in the morning and xx hours in the evenings, to a Heatpump running 24hrs - I have no intention of running the Heatpump for 24hrs. I am happy to run it for a pattern somewhat similar to a gas boiler.
I know it's won't be as efficient from a COP perspective, but it will cost far less over 24hrs than running 24 x 7
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