I think the best is to run the C wire less problems later on.Lumber-jack wrote: ↑Okay, so I have it running now and found out a few things:
1.The Venstar add a wire I was told wouldn't work with Nest.
2. I bought a 24AC power transformer that was at least 1.5mA and was able to put in behind the thermostat wall in the pantry. Everything works fine now.
3. Their specs and technicians say to run it to the "RC" wire and not the "RH" as the system was designed that way. I had to marrette the "RC" and the "R" from the 24V transformer together behind thermostat as it won't accept two wires. It now shows that I have a "C" wire.
4. Although I found a little bit of information on using an external power source it was like looking for Amish porn. When I talked to a second level tech he acknowledged that what I was doing was over his head but wanted me to follow up with him. If it worked he wanted to forward it to the Engineers.
5. If the unit falls below 3.7 volts it shuts down the wifi to conserve battery.
For this exact reason (even though pulling c wire was easy for me) i got a different brand that had more features and it uses a controller near the furnace and then 4 wires that go to the actual thermostat.