Tag: 3M-50 THERMOSTAT
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RADIO THERMOSTAT 3M-50 Digital Thermostat Install Guide
RADIO THERMOSTAT 3M-50 Digital Thermostat Installation Caution Your thermostat is a precise instrument, handle it with care. Turn off electricity to the HVAC system before installing or servicing thermostat or any part of the system. Do not turn electricity back on until work is completed. Do not short (jumper) across electric terminals at the control…