the heating and cooling thermostat has to be plugged in the wall outlet in order to work.
i want to replace the thermostat, so if i just unplug it, will those wires inside the wall for the thermostat also be cut off the electricity?
thanks.
live wires of thermostat?
2017-05-04 4:28 pm
回答 (3)
2017-05-04 7:10 pm
Usually it is fed by a 24 volt transformer on a circuit board in the furnace. Normally 24v is not enough feel, but it is possible to damage the board if you don't switch off the furnace power.
2017-05-04 6:58 pm
The electricity for the thermostat is only 12 volts and it comes from a small transformer in the air handling unit of the furnace. To turn off that electricity you need to turn off the breaker for the furnace.
2017-05-04 4:31 pm
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