Google Nest Community

GL4 · 03-29-2023

Hi All, I’ve got a heat pump outside and an air handler in the garage with heat strips. For the past year, I’ve been running it as a dual system with the heat pump turning off at 40F and the heat strips taking over. It wasn’t efficient, but it worked...

GL4 · 03-30-2023

It won’t be cold enough until tomorrow night for me to confirm with results, but now that I’ve moved the white wire to W2 inside the Nest, is there a chance the heat strips will kick in like they should when the heat pump goes into defrost?

GL4 · 03-30-2023

If I understand correctly, it doesn’t matter if I plug into W1 or W2 on the Nest because it isn’t wired properly from the heat pump to the air handler and therefore neither option will allow my heat strips to kick in during defrost mode?

GL4 · 03-30-2023

The model is 4TWX4030A1000AB.

GL4 · 03-30-2023

When the white wire was plugged into W1 it showed up as white in the Nest app, but now that the same white wire is plugged into W2/Aux it’s shows up as brown in the Nest app. Not sure if that matters?

GL4 · 03-30-2023

The outdoor unit is a Trane XL14i.

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