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Wocius · 04-04-2023

I have a Trane Air Handler (Model TEM6A0D48H41SAA) with a Honeywell T6 Pro Programmable Thermostat (Model TH6220U2000/U) with the following 7 wires: C, G, Y, O/B, W2, E, R. It is an electric heating and cooling unit. I don’t know if it has a heat pum...

Wocius · 04-06-2023

Thanks again. I can now confirm I do have a heat pump.I reset my Nest, following the instructions for a heat pump furnace. As far as I could understand, that meant moving the original W2 wire out of Nest's W1 and into Nest's W2/Aux. When I turned the...

Wocius · 04-04-2023

Thanks for your fast reply! Yes, the current configuration has the white wire going into W2/Aux, and the Nest app recommends putting that into W1. I may have to contact a local Pro, but I'd like to try to DIM (Do It Myself), if possible!

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