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Is mine compatible?

alxwx
Community Member

IMG_4041.jpeg

1 REPLY 1

David_K
Platinum Product Expert
Platinum Product Expert

Wire labels such as A B C and D indicate a proprietary system, which are designed not to work with other thermostats, unfortunately. Some (but not all) proprietary systems may have the option to use standard heating system wires. In this case, a local HVAC professional may be able to connect your system to a Nest thermostat.