2.1.2Loosen all screws holding the old thermostat’s wallplate to the wall. Do not disconnect the wires from terminals. Allow the wallplate to hang loosely on the wires.
Wall opening
Wallplate hanging on the wires
✔Ignore wire colors. There is no standard color code for thermostat wires.
✔Ignore existing wire labels, if they are present.
✔Use the provided labels to
✔The new labels must remain on the wires at least until the installation process is complete.
✔No two wires can have the same label. wall 
C 
wall
C
2.2Label and disconnect the wires
2.2.1Note you may see two types of wiring in the old thermostat:
1. Wires leading from the wall to a | wall | |
terminal on the thermostat | ||
|
2. Wires connecting one terminal to another (jumper wire).
These don’t have to be labeled.
6 | 7 |
