ICM Controls SC 1800 Installation, Operation & Application Manual - Replacing Wiring Labels
Replace the old labels with the enclosed new labels.
Old
New
Type
F, G
G
Fan control relay
H, W, 4
W
Heating control
M, 4, RH, RS, R
R
Transformer, hot side
Replacing Wiring Labels
ELECTRICALSHOCKHAZARD
–Turnoffpoweratthemainservicepanelbyremovingthefuse
orswitchingtheappropriatecircuitbreakertotheOFFpositionbeforeremovingtheexisting
thermostat.
IMPORTANT: Thermostat installation must conform to local and national building and electrical
codes and ordinances.
Note: Mount the thermostat about five feet above the floor. Do not mount the thermostat on
an outside wall, in direct sunlight, behind a door, or in an area affected by a vent or duct.
1. Turn off power to the heating and cooling system by removing the fuse or switching off the
appropriate circuit breaker.
2. Move the FanAuto/On switch into Autoposition.
3. To remove cover, insert and twist a coin or screwdriver in the slots on the sides of the thermostat.
4. Put thermostat base against the wall where you plan to mount it (Be sure wires will feed through the
wire opening in the base of the thermostat).
5. Mark the placement of the mounting holes.
6. Set thermostat base and cover away from working area.
7. Using a 3/16” drill bit, drill holes in the places you have marked for mounting.
8. Use a hammer to tap supplied anchors in mounting holes.
9. Align thermostat base with mounting holes and feed the control wires through wire opening.