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Wiring Ecobee thermostat to Vulkan gas furnace with no C terminal

Home Improvement Asked by tomwilson on November 30, 2020

I am trying to wire up an Ecobee thermostat to an old (1997) Gas central heating system but I got up into the roof then realised I have no terminal labelled C.

Now, I don’t super know what I am doing, but based on the diagram taken from the heater I should in theory be able to tap into the wire on the right side (to the left of the earths) that is labelled 24VAC?

No C terminal
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One Answer

This line:

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is the equivalent of the "C" terminal. Get it from here:

enter image description here

Correct answer by jwh20 on November 30, 2020

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