Carrier 50EE - Manual (Page 3)

• More them the normal number of electric lights are in
use
• Drapes are open on the sunny side of the home
HEATING CYCLE
If you own a packaged air conditioner that includes electric
heat as an accessory, you need only program your thermo­
stat for heating.
With the SYSTEM switch of your indoor thermostat set to
the HEAT position, the heating section of your home com­
fort system will operate until room temperature is reused to
the level you have selected. Of course, the heating unit will
have to operate for longer periods to meuntedn a comfortable
environment on colder days emd nights than on moderate
ones.
PERFORMING ROUTINE MAINTENANCE
With the proper maintenance and care, your air conditioner
will operate economicedly Emd dependably. Meuntenance can
be accomplished easily by referring to the following direc­
tions.
However, before performing maintenance, consider
these important safety precautions:
• DISCONNECT ALL ELECTRICAL POWER TO THE
AIR CONDITIONER BEFORE REMOVING ACCESS
PANELS TO PERFORM SERVICE OR MAINTE­
NANCE. For a packaged air conditioner unit, disconnect
power to the unit and any supplemental electric heaters.
NOTE: THERE MAY BE MORE THAN ONE ELECTRI­
CAL DISCONNECT SWITCH.
• ALTHOUGH SPECIAL CARE HAS BEEN TAKEN
TO MINIMIZE SHARP EDGES IN THE CONSTRUC­
TION OF YOUR UNIT, BE EXTREMELY CAREFUL
WHEN HANDLING PARTS OR REACHING INTO THE
UNIT.
CHECK THE AIR FILTER
A dirty air filter will cause excessive strain on the compres­
sor arid blower motor. This can cause the components to
overheat and automatically shutdown. In the extreme, the
components will fail and need to be replaced. To avoid ineffi­
cient or failed operation of your unit, CHECK THE FIL-
TER(S) EVERY 3 TO 4 WEEKS. Replace filter(s) when nec-
ess£u-y, or clean the filter(s) if you have the reusable type.
Disposable filters should be replaced by similar, new filters
of the same dimensions.
Reusable, permanent filters should be washed in a solution
of cold water and mild detergent, then rinsed and thor­
oughly dried. THE FILTER MUST BE COMPLETELY
DRY BEFORE BEING REINSTALLED. To avoid pro­
longed shut down of your unit while a filter is drying, you
should have an extra filter on hand. This would allow you to
rotate between the two with minimal downtime for your
comfort system. Extra filters may be purchased from your
deeder.
The filter(s) and filter rack for a packaged system are sup­
plied and installed by the contractor or dealer. Typically,
the filter(s) and rack are located in the return-air duct at the
outdoor unit or behind the return-edr grille(s). Have your
dealer show you the location of your filter(s) and the proce­
dures for removal and replacement.
If you have any questions about the removal and/or clean­
ing of your filter(s), contact your dealer for assistemce.
If grass clippings, leaves, shrubbery, and debris eire kept
away from the unit, minimal care should be sufficient to
keep the system functioning properly. However, if the out­
door coil becomes dirty, use a brush or vacuum cleaner and
soft brush attachment to deem the exterior surface. If dirt
is deep in the coil, contact your deeder for service. The out­
door fan motor may have to be disconnected and the top
panel removed to gain access to the coil for thorough clean­
ing. Do not attempt this yourself.
UNIT SUPPORT
Your packaged unit should be maintained at a level posi­
tion. If its support should shift or settle so that the unit is
no longer level, you should correct the condition. Relevel it
promptly to assure condensate drainage out of the unit. If
you notice that water or ice collects beneath the unit,
arrange for it to be drained away from the unit.
BEFORE YOU REQUEST A “SERVICE CALL”
BEFORE YOU CALL FOR SERVICE, CHECK FOR THESE
EASILY SOLVED PROBLEMS:
Check the indoor and outdoor disconnect switches. Verify
that circuit breakers are ON or that fuses have not blown.
Check for sufficient airfiow. Check the air filter(s) for any
accumulations
of dirt. Check for blocked return-air or
supply-air grilles. Be sure grilles are open and unobstructed.
Check the settings on your indoor thermostat. If you desire
cooling, see that the temperature control selector is set
below room temperature and the SYSTEM switch is on the
COOL or AUTO position. If you require warmth, be sure
the temperature control selector is set above room tempera­
ture and the SYSTEM switch is at HEAT or AUTO. The
FAN switch should be set at ON for continuous blower
operation or AUTO if you wish the blower to function only
while the unit is operating.
If your comfort system still fails to operate, contact your
servicing deeder for troubleshooting and repairs. Specify
your apparent problem, and state the model and serial num­
bers of your equipment. (You should have them recorded on
page 4 of this booklet.) With this information, your dealer
may be able to offer helpful suggestions over the phone, or
save valuable time through knowledgeable preparation for
the service call.