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Identify This Part

tbone4628 Member Posts: 2
edited September 2023 in Thermostats and Controls
Help. I believe this is the thermostat for an in slab electric heat system. I'd like to know some more about it. Like what the Settings (A, B,C, etc) mean, what I should set it to for season or temperature. Would like a data sheet or even better a recommendation for a more modern replacement that uses room temp and slab temp. Any recommendations appreciated.