6
CHECK THE AIR FILTER
A dirty air filter will cause excessive strain
on the compressor and blower motor, caus-
ing the components to overheat and auto-
matically shut down. In the extreme, the
components will fail and need to be
replaced. To avoid inefficient operation
or failure of your unit, CHECK THE
FILTER(S) EVERY 3 TO 4 WEEKS.
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
dimensions.
Reusable, permanent 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, allowing you to rotate
between the two filters with minimal
downtime for your comfort 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 furnace, refer to your furnace
Owner’s Manual for filter location and
procedures for replacement or cleaning.
If your system includes an indoor fan coil
unit, the filter is located in the unit where it
connects with the return-air duct or plenum.
(See Fig. 5.) Remove the filter access plate,
then pull out the rack and filter. The clean
filter must be reinstalled with the cross-
hatched (when used) side facing the blower.
With the clean filter in place, secure the
spring tensioner, slide the tray into the unit,
then secure the locks.
INDOOR COIL
If the indoor coil has only been operated
with a clean filter in place, it should
require minimal cleaning.
If coil cleaning is required, call your
dealer for service. It may be necessary to
clean the coil with a detergent solution
and rinse it with water, which could
require removing of the coil. DO NOT
attempt this yourself.
OUTDOOR COIL
If grass clippings, leaves, shrubbery,
and debris are kept away from the
outdoor unit, minimal care should
keep the system functioning properly.
For proper drainage, debris must be
removed periodically from the base
pan. However, if the outdoor coil becomes
dirty, use a vacuum cleaner with soft brush
attachment to clean the exterior surface.
Vacuum coil surface using an up and down
motion. Be careful not to bend or damage
coil fins. If dirt is deep in the coil, contact
your dealer for service. The outdoor fan
motor may have to be disconnected and
the top panel removed to gain access to the
coil for thorough cleaning. Do not attempt
this yourself.
OUTDOOR COIL—
SEA COAST
If your unit is located near the ocean,
special maintenance is required. Ocean
mist/breeze carries salt, which is corro-
sive to most metals. Although your new
unit is made out of galvanized metal and
is protected by top-grade paint, you
should take the precaution of additional
maintenance, by periodically washing
the unit. By washing all exposed sur-
faces and coil you will be adding addi-
tional life to your unit. Consult your
installing contractor for proper inter-
vals/procedures for your geographic
area or service contact.
UNIT SUPPORT
Your split-system outdoor unit should be
maintained at a level position. If its sup-
port shifts or settles so that the unit is no
longer level, you should correct the con-
dition. Relevel it promptly to assure that
water drains 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.
Heat pumps installed in snowbelt areas
should be elevated with support feet or a
snow stand.
BEFORE YOU REQUEST
A SERVICE CALL
CHECK FOR THESE EASILY
SOLVED PROBLEMS:
• Check the indoor and outdoor discon-
nect switches. Verify that circuit breakers
are on or that fuses have 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 ther-
mostat. If you desire cooling, see that the
temperature control selector is set below
room temperature and the SYSTEM or
MODE control is set to COOL or AUTO.
If you require heat, be sure the tempera-
ture control selector is set above room
temperature and the SYSTEM or MODE
control is set to HEAT or AUTO. The
FAN control should be set to ON for con-
tinuous blower operation or AUTO if you
wish blower to function only while the
unit is operating.
• Check note concerning special features
and time delays in “Operating Your Heat
Pump” section.
If your comfort system still fails to oper-
ate, contact your servicing dealer for
troubleshooting and repairs. Specify
your apparent problem, and state the
model and serial numbers of your
equipment. (You should have them
recorded on the last page of this book-
let.) 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.
REGULAR DEALER
MAINTENANCE
In addition to the routine maintenance
that you perform, your home comfort
system should be inspected regularly by
a properly trained service technician. The
inspection (preferably each year, but at
least every other year) should include the
following:
• Routine inspection of air filter(s).
Replacement or cleaning as required.
• Inspection and cleaning of the blower
wheel, housing, and motor as required.
• Inspection and, if required, cleaning of
indoor and outdoor coils.
• Inspection of the indoor coil drain pan,
plus the primary and secondary drain
lines. If supplied, the auxiliary drain pan
and line should be inspected at this time.
Service should include cleaning if
required.
• A check of all electrical wiring and con-
nections.
• A check for secure physical connec-
tions of individual components within
units.
• Operational check of the heat pump
system to determine actual working
condition. Necessary repair and/or
adjustment should be performed at this
time.
• Your servicing dealer may offer an eco-
nomical service contract that covers sea-
sonal inspections. Ask for further details.
FOR THE RECORD
Record the model, product, and serial
numbers of your new equipment in the
spaces provided. This information,
along with the other ready-reference
facts requested, will be necessary if you
ever require information or service.
Summary of Contents for 698A
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