We have a Heil forced air heating system and a separate air conditioning
system. Below is a pic of the wiring of our current thermostat. Any
suggestions about how to wire the Nest? Thanks.
Spoke to Google Nest support and were told we need to insert a relay
between the "B" and "O" wires so that we can insert one wire into the
O/B terminal of the Nest thermostat. Any specifics on how to do this?
Thanks.
