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Hello! I am getting lots of conflicting information on my situation from our builder and HVAC company that I'm hoping this community can help me with.
Furnace ML 180UH
Control Panel LZP-4
Old Thermostat Honeywell FocusPro 6000
Heat pump with 1 stage heat with multi zones
I've been told that my Ecobee 3 should be compatible. I have it wired as such
R -> Rc
G -> G
Y -> Y1
W -> O/B
B -> C
The air conditioning worked great over the summer. However, now at winter time we had a situation where it got cold enough that the heat pump didn't switch on which was expected but it didn't switch on the auxiliary heat. We are being told that we need to manually switch to emergency heat on the control panel. However, our builder says the control board should do that automatically.
To make this even more complicated, we sold our old thermostats and I deleted the old wiring photo as I thought it was all working which was my mistake.
Is there a way to wire our Ecobee 3 so we don't have to manually set to emergency heat and also so we can get benefits of heat pump?
Thank you so much for your time!