Getting Started
Installation Guide CT100
Installation Location
To avoid having to move your wiring to a new location,
mount the CT100 in place of the old thermostat.
• Install the thermostat on an inside wall of an often-used room, about
5 ft. (1.5m) above the fl oor.
• Do not install where there are unusual heating conditions, such as:
in direct sunlight; near a lamp, radio, television, radiator register,
fi replace; near hot water pipes in the wall; or near a stove on the
other side of a wall.
• Do not locate in unusual cooling conditions, such as: on a wall
separating an unheated room; or in a draft from a stairwell, door, or
window.
• Do not locate in a damp area. This can lead to corrosion that will
shorten the thermostat’s life.
• Do not locate where air circulation is poor, such as: a corner, an
alcove, or behind an open door.
• Do not install the CT100 until all construction and painting is
complete.
• This thermostat does not require leveling.
Getting Started
Installation Guide CT100
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.
C
G
W
• Install the thermostat on an inside wall of an often-used room, about
5 ft. (1.5m) above the fl oor.
• Do not install where there are unusual heating conditions, such as:
in direct sunlight; near a lamp, radio, television, radiator register,
fi replace; near hot water pipes in the wall; or near a stove on the
other side of a wall.
• Do not locate in unusual cooling conditions, such as: on a wall
separating an unheated room; or in a draft from a stairwell, door, or
window.
• Do not locate in a damp area. This can lead to corrosion that will
shorten the thermostat’s life.
• Do not locate where air circulation is poor, such as: a corner, an
alcove, or behind an open door.
• Do not install the CT100 until all construction and painting is
complete.
• This thermostat does not require leveling.
• Read instructions carefully before removing any wiring from an
existing thermostat.
• Label all wires before disconnecting them form the existing
thermostat.
!
CAUTION
7
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