The kid meets the furnace thermostat...
Hi, So she’s been back there before... Likes to pull the cover off the thermostat. This time, she pulled the thermal expansion spring out. (She did this just as i was finishing fixing the last thi...
Forum Discussion
The two wire thermostat is for furnace only. When the thermostat calls for heat it just connects the two wires together. When the temperature is reached the thermostat breaks the connection between the two wires.
The AC is on the ceiling and controlled by turning the knobs on the unit itself to both turn it on as well as adjusting the temperature.
There is no additional wiring needed to replace a 2 wire mechanical thermostat with a battery powered digital thermostat.
There is only one fan speed for the furnace. The high/low fan speed is for air conditioners not furnaces.
This swap is relatively easy and should take about ten minutes.
The AC is on the ceiling and controlled by turning the knobs on the unit itself to both turn it on as well as adjusting the temperature.
There is no additional wiring needed to replace a 2 wire mechanical thermostat with a battery powered digital thermostat.
There is only one fan speed for the furnace. The high/low fan speed is for air conditioners not furnaces.
- Pull the cover off the mechanical unit
- Remove the two screws holding the unit to the wall
- Disconnect the two wires off the back of the old mechanical unit
- Carefully drill new mounting holes for the new thermostat.Connect wires according to instructions, 1 wire to the positive terminal and the second wire to the heat terminal
- Install batteries and test
- If no operation swap the wires
- Mount thermostat on the wall.
This swap is relatively easy and should take about ten minutes.
