Digital Programmable Thermostats

Installation Made Easy

1. Read the Instructions

Before you begin, read the manufacturer's instructions that were sent with the thermostat.

2. Turn Off Power

Before doing any electrical work, shut off the power. In this case, the circuit feeding the furnace controls the power to the thermostat.

3. Remove Old Thermostat

Take the face plate off of the old thermostat and remove the mounting screws. This will expose the thermostat base. Carefully remove the wires from the thermostat base. Mark down on a piece of paper which color wire goes to what terminal. It should be red to "R" for power, white to "C" for common, blue to "Y" for cool, and green to "G" for fan. Be sure to tie the wires together so that they don't fall into the wall.

4. Base Removal

Remove the old base by removing the mounting screws. These mounts probably won't work with the new thermostat.

5. Install New Thermostat Base

In order to install the new base, you'll need to install the new mounting hardware. Usually the manufacturer will send some plastic anchors. With a drill bit slightly smaller than the anchor, drill the holes for the new base. It's a good idea to level the thermostat for looks.

6. Wire New Thermostat

Using the paper that you wrote the wire colors on, connect the wires accordingly to the new thermostat. Remember, each color goes on only one terminal screw.

7. Attach Thermostat

Now attach the new thermostat to the base and install the cover. Depending on the model, this may be mounted with screws.

8. Turn Power On

The final step is to turn the power back on and test the thermostat. Check to see if the thermostat is functioning properly. It's just that simple!