Radio Thermostat ct100 User Manual page 7

!
CAUTION
• Read instructions carefully before removing any wiring from an
existing thermostat.
• Label all wires before disconnecting them form the existing
thermostat.
1. Switch off electricity to the heating and cooling systems. This can
be done at the circuit breaker.
2. Remove the cover from the existing thermostat. Check for locking
screws on the side or front that must be loosened fi rst.
3. Attach provided labels to each wire for identifi cation. Refer to the
lettered terminal where the wires attach; do not use the color of
the wires.
4. Disconnect wires from the existing thermostat, and wind them
around a pencil to keep them from falling back inside the wall.
5. Loosen all mounting screws on the old thermostat and remove it
from the wall.
4
Installation Guide CT100
Getting Started
7