Part 2 Remove Old Thermostat and Install New Thermostat
Do not disconnect wires from the old thermostat until you label all the wires according to this manual.
2.1Expose wires connected to old thermostat
2.1.1After turning off power to your heating & cooling system, expose wallplate with wires and wire terminals. The required steps vary depending on your old thermostat type.
Your old thermostat may consist of:
•3 parts: a cover, base and wallplate or
•2 parts: a cover and wallplate
3-Part unit
CoverBase Wallplate
2-Part unit
C | AUX |
G | E |
Y | L |
W |
|
RC |
|
R |
|
Cover Wallplate
✔The Cover: This usually pulls off, but is sometimes secured by a screw which must be loosened.
✔The Base: This either pulls off or needs to be removed by loosening screws under the cover.
✔The Wallplate: This is removed by loosening the screws that hold the thermostat to the wall.
4 | 5 |
