The heatlink connects upto 230V L/N/E, however which should the 2 call for heat wires go? Is it the 24V RT or the 230V RT?
I would like to do the same install with a NEST. Would the L, N, E piggy back off the 230v, and the call for heat into the 24v?
I recently (couple months ago) had a new Vaillant ecotec 938 installed.
However, when i set the thermostat to temperature, the...
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