Thermometer Adjustment - Honeywell T8090A Owner's Manual

Thermometer Adjustment

The thermometer was accurately calibrated
at the factory and should need adjustment only
if it was dropped or mishandled.
If the set point lever and the thermometer
reading do not agree, follow the procedure below.
Remove thermostat cover and open the flip-up
cover.
Set the thermostat cover on a table near a
thermometer of known accuracy.
Allow at least five minutes for the cover
thermometer to sense the area temperature;
then compare the readings. Be careful not to
touch the thermometer or breathe on it.
If the readings are the same, replace the
cover and put the system into operation.
If the readings are different, insert a small
screwdriver into the thermometer slot, shown
in Fig. 7, and turn it until both thermometers
read the same.
Replace the thermostat cover and put the
system into operation.
THERMOMETER
SLOT
Fig. 7—Thermometer Adjustment.
25
BACKSIDE OF
FLIP-UP COVER
INSERT AND TURN
SCREWDRIVER
M1810
69-0628B—1