- T874G1196 thermostat by york (can only find honeywell documentation)
- MB7BM-1200K-B air handler
- H8HK015H-21 electric heater
- Thermopump (heating and cooling)
We want to connect it to a nest thermostat E.
I spoke with a nest employee via chat on their website and she seemed to say that our system was compatible only we would need to get a pro to come and "join the O and B wires into the "*ob" terminal on the nest". She also mentioned something about possibly needing a relay but was reluctant to go into detail as I felt she was worried I might mess up my system.
Before we go and blow a whole wad of cash for some guy to come and twist 2 wires together, I just wanted to get your opinion on our setup.