Check cooling
IMPORTANT: To avoid damaging the compressor in the air conditioner,
do not operate the cooling system when the outdoor temperature is
below 50°F (10°C).
1. If your CT87 has a subbase, set the System switch on the left to
2. Lower the temperature setting below room temperature. The cooling
3. Raise the temperature setting above room temperature. The cooling
Operation
To set the temperature, turn the dial until the pointer on the top setting scale aligns with
the desired temperature.
CT87B, J switches
Switch
System
Fan
Cool.
IMPORTANT: After heating is tested, wait five minutes before switch-
ing to Cool on the CT87J model.
system should start.
system should stop.
Setting
Cool
The thermostat controls your cooling system.
Off
Both the heating and cooling systems are off.
Heat
The thermostat controls your heating system.
On
The fan runs continuously.
Auto
The fan runs only with the heating or cooling
system.
CT87A,B,J ROUND® THERMOSTAT
Result
11
69-0274-6