I have installed other smart therms with no issue, but this one and some unconventional wiring is causing me issues. Any help would be appreciated. I can get power to the therm, but it does not recognize my heat and it does not turn on anything. Wiring of old therm below:
Red to R
Black to C
Yellow to 1
Blue to 2
White and Green not in use.
Unit has a heat pump.
Can anyone tell me what these 1 and 2 wires are and what else needs to be done to get my therm working?