3 69-0548—2
Checkout
CAUTION
Do not check thermostat operation by shorting
across system control terminals. This damages
the thermostat heat anticipator.
T822C,E COOLING THERMOSTATS
CAUTION
Do not operate cooling circuit if outdoor tempera-
ture is 50° F [10° C] below room temperature.
Refer to air conditioner manufacturer recommen-
dations.
NOTE: To prevent compressor short cycling, a mini-
mum off-timer may be included to provide a five
minute time delay before reactivating the compressor
or after compressor receives power.
1. Set T822E SYSTEM switch to AUTO and FAN
switch to AUTO. Fan and system operation are now
controlled by the thermostat.
2. Move temperature setting lever about 10° F [6° C]
below room temperature. Cooling and fan start immedi-
ately.
3. Move temperature setting lever about 10° F [6° C]
above room temperature. Cooling and fan stop immedi-
ately.
4. Set T822E SYSTEM switch to AUTO and FAN
switch to ON. Fan runs continuously.
5. Set T822E SYSTEM switch to OFF. Cooling
control system is disabled.
6. Set temperature lever and T822E SYSTEM and
FAN switches to the desired settings.
Fig. 4—Recalibration procedure.
CALIBRATION
WRENCH
COIL SHOWN WITHOUT
HEAT ANTICIPATOR
M2044