How to replace Comfort 365 with Nest

[Monky]

How to connect the Comfort 365t11 thermostat damper wires (COM, CLS, OPN) and also the temperature sensor wire (TS) to the Nest?

[Jhonleanmel]

Hi Monky,

Thanks for posting.

Wire labels such as COM, CLS, and OPN indicate an incompatible system.

These systems usually only work with thermostats made by the same manufacturer. But some of these systems may also have the option to use standard heating system wires. Contact a local pro and have them check if your HVAC system can be rewired to be Nest compatible.

Best,
Mel

[Jhonleanmel]

Hey Monky,

Checking back in should you still have some questions here. Let us know by replying to this thread.

Best,
Mel

[Markjosephp]

Hello there,

Thanks for helping, Mel.

@Monky, I'm checking in to make sure that you've seen Mel's response. Please let us know if you have any additional questions or concerns before we lock this thread in 24 hours.

Regards,
Mark