Subject to change without notice. Printed in U.S.A.
66235-BUM-C-0313
Copyright
©
2013 by Johnson Controls, Inc. All rights reserved.
Supersedes: 66235-BUM-B-0709
York International Corporation
5005 York Drive
Norman, OK 73069
TROUBLESHOOTING
BEFORE CALLING A SERVICE-
MAN:
A. Check thermostat setting and
insure thermostat is calling for
heat or cooling.
B.
Check thermostat for lint, dust, etc.
C.
Check fuses or circuit breakers.
D.
Check filters for excessive dust
accumulation and/or restriction.
PARTS INFORMATION
Contact your local Unitary Products
parts distribution center for
authorized replacement parts.
SOME EFFICIENCY DO’S AND
DON’TS
DON’T heat or cool unused areas.
Reduce supply and return air flow to
a minimum in areas which are not
living spaces (storage rooms,
garaged, basements, etc.).
DON’T be a “thermostat jiggler”.
Moving your thermostat setting will
not make your system heat or cool
any faster. Adjust your thermostat to
a comfortable setting and leave it
there.
DON’T restrict air circulation. Placing
furniture, rugs, etc. in such away that
they interfere with air vents will make
your system work harder to achieve
a comfortable temperature level.
This requires more energy, which
means greater cost to you.
DON’T heat or cool when you are
away. If you are going to be away for
a day or more, readjust your
thermostat accordingly. Your
furniture is far less demanding than
you are when it comes to comfort
levels. However, don’t expect the
system to restore comfort conditions
immediately upon returning home. It
will take a little time.
DON’T locate lamps or other heat-
producing appliances (radios, TV’s,
heaters, etc.) near your
thermostat.The heat from these
items will give your thermostat “false
information” about the temperature
in the room.
DO select a comfortable thermostat
setting, but keep in mind that
moderation in temperature selection
will save energy.
DO turn on your kitchen exhaust fan
when cooking and your bathroom
exhaust fan when showering. Also,
make sure your clothes dryer is
properly vented. If these items are
neglected, an excess heat and
humidity condition may be created,
causing your air conditioning system
to run longer.
DO set your thermostat a few
degrees lower than normal several
hours before entertaining a large
group of people in a relatively small
area. People give off a considerable
amount of heat and moisture in a
closed area.
DO keep drapes and Venetian blinds
closed when practical. These items
provide insulation against heat loss/
gain.
DO contact a qualified serviceman to
make repairs or adjustments to your
system. He has been trained to
perform this service.
