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However, before perforlning lnaintenance, consider these
ilnportant safety precautions.
To prevent personal injury or death disconnect
all electrical power to the indoor air handler or
furnace before removing access panels to per-
form maintenance. Disconnect power to both the
indoor and any outdoor units. NOTE: there may
be more than 1 electrical disconnect switch.
Although special care has been taken to minimize
sharp edges in the construction of your unit, be
extremely careful when handling parts or reach-
ing into the unit.
CHECKTHE INDOOR AIR FILTER
A dirty air filter will cause excessive strain on the compressor
and blower motor. This can cause the colnponents to overheat
and automatically shut down. In the worst case, the COlnponents
will fail and need m be replaced. To avoid inefficient or failed
operation of your unit, CHECK THE FILTER(S) EVERY 3 TO
4WEEKS. Replace filter(s) when necessary, or clean the filter(s)
if you have the reusable type.
Disposable filters should be replaced by similar, new filters of
the same dilnensions.
Reusable, perlnanent filters should be washed in a solution of
cold water and mild detergent, then rinsed and thoroughly dried.
THE FILTER MUST BE COMPLETELY DRY BEFORE
BEING REINSTALLED. To avoid prolonged shutdown of your
unit while a filter is drying, you should have an extra filter on
hand. This allows you m rotate between the two with lninilnal
downtilne for your colnfort system. Extra filters may be
purchased from your dealer.
There are no filters in the outdoor unit of a split-system. If your
indoor unit is a gas or oil fimmce, refer to your furnace User's
Mamml for filter location and procedures for cleaning or
replacelnent.
If your system includes an indoor fan coil unit, the filter may be
located in the unit where it com_ects with the return-air duct or
plenum. (See Fig. 5.) Relnove the filter cover plate by sliding
latches toward center of plate. Lift filter to clear lower flange.
Filter is spring-loaded and will pop out. Reinstall filter, being
certain to secure filter behind lower flange. When reinstalling
cover plate, secure plate behind upper flange then slide tabs
outward.
The indoor fan coil unit may be located in the attic. In
this instance the filter could be located behind the return air
grille. Access the filter by relnoving two screws froln return
air grille.
ELECTRONIC AIR CLEANER
If your system contains an Electronic Air Cleaner consult the
User's Mamml for specific care of that product.
INDOOR COIL
It'the split-system coil has only been operated with a clean filter
in place, it should require lninilnal cleaning.You may use a vac-
uum cleaner and soft brush attacl_nent to relnove any accumu-
lation of dust froln the mp and underside of the fnmed coil
surface. However, only perforln this lnaintenance when the coil
is completely dry.
If coil cleaning is required, call your dealer for service. It lnay
be necessary to clean the coil with a detergent solution and rinse
it with water. This could require the relnoval of the coil. You
should not attempt this yourself.
OUTDOOR COIL
It"grass clippings, leaves, slmlbbery, and debris are kept away
from the outdoor unit, lninilnal care should be sufficient m keep
the systeln functioning properly. For proper drainage, debris lnUSt
be relnoved periodically from the base pan. However, if the out-
door coil becomes dirty, use a vacuum cleaner with soft brash
attacl_nent to clean the exterior sur*hce._acuum coil surlhce with
an up and down iTlotion. Be carefifl not to bend or damage fia_s.
If dirt is deep in the coil, contact your dealer for service. The
outdoor fan motor may have to be discom_ected and the top panel
relnoved to gain access to the coil for thorough cleaning. Do not
attempt this yourself.
OUTDOOR COILISEA COAST
It"your unit is located near the ocean, special lnaintenance is
required. Ocean mist/breeze carries salt, which is corrosive to
most metals. Although your new unit is made of galvanized
metal and is protected by top-grade paint, you should take the
precamion of additional lnaintenance which consists of
periodically washing the unit. By washing all exposed surfaces
and coil approximately every 3 lnonths, you will be adding
additional life to your unit. Consult your installing contractor
for proper intervals/procedures for your geographic area or ser-
vice contract.
UNIT SUPPORT
Your split-system outdoor unit should be lnaintained in a
level position. If its support should shift or settle so that the
unit is no longer level, you should correct the condition.
Relevel it prolnptly to assure proper water drainage out
of the unit. If you notice that water or ice collects beneath
the unit, arrange for it to be drained away froln the unit.
BEFORE YOU REQUEST A SERVICE
CALL
CHECK FORTHESE EASILY SOLVED
PROBLEMS:
• Check the indoor and outdoor discom_ect switches. Verify that
circuit breakers are ON or that fi_seshave not blown.
• Check for sufficient airflow. Check the air filter(s) for any
accumulations of dirt. Check for blocked return-air or supply-air
registers. Be sure registers are open and unobstructed.
• Check the settings on your indoor therlnostat. If you desire
cooling, lnake sure that the temperature ccnatrol selector is set
below rooln telnperature and the SYSTEM or MODE control is
set to COOL or AUTO. If you require warlnth, be sure the teln-
perature control selector is set above rooln telnperature and the
SYSTEM or MODE control is set to HEAT or AUTO. The FAN
control should be set to ON for continuous blower operation or
AUTO if you wish blower to fimction only while your heating or
cooling equiplnent is operating.
• Check note concerning special features and time delays in
"Operating Your Air Conditioner" section.
If your COlnfortsystem still thils to operate, turn your system off
and contact your servicing dealer for troubleshooting and
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