Calibration – Honeywell Y594G User Manual
Page 5
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CALIBRATION
THERMOSTAT
These thermostats are accurately calibrated at the
factory. THEY DO NOT HAVE PROVISION FOR FIELD
CALIBRATION.
THERMOMETER
The thermometer in your thermostat has been ac
curately calibrated at the factory. The thermometer
should only need adjustment if It has been dropped or
shifted due to mishandling.
If set point lever and the thermometer reading do not
agree, follow the procedure below.
1. Remove thermostat cover by pulling up from the
bottom of cover until it clears the retaining posts.
2. Set the cover on a table near an accurate ther
mometer.
3. After allowing 5 or 10 minutes for stabilization,
compare the readings. If they are the same, replace cover
and put system into operation. It they are different,
recaiibrate the thermostat thermometer, step 4.
4. Insert a small screwdriver in the thermometer shaft
(Fig. 8) and turn it until the thermometers read the same.
When the thermometer is calibrated, replace cover and
place system into operation.
NOTE: Hand heat will offset the thermometer reading.
After making each adjustment, wait 5 or 10 minutes for
the thermometer to stabilize before comparing.
Fig. 8—Thermometer calibration.
Honeywell Inc.
1885 Douglas Drive N.
Golden Valley. MN 55422-4386
International Sales Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland,
France, Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.
PRINTED IN U.S.A.