4
below room temperature and the SYSTEM or MODE control
is set to COOL or AUTO. If you require warmth, make sure
that the temperature control selector is set above room temper-
ature 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 function only
while your heat pump is operating.
If your comfort system still fails to operate, turn your system
off and contact your servicing dealer for troubleshooting and
repairs. Specify your apparent problem, and state the model
and serial number of your equipment. (You should have them
recorded on the last page of this booklet.) With this informa-
tion, your dealer may be able to offer helpful suggestions over
the phone or save valuable time through knowledgeable prep-
aration for the service call.
REGULAR DEALER MAINTENANCE
In addition to the routine mainte-
nance that you perform, your home
comfort system should be inspect-
ed regularly by a properly trained
service technician. The inspection
(preferably twice each year, but at
least once every 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 coils.
• A check of all electrical wiring and connections.
• A check for secure physical connections of individual com-
ponents within unit.
• 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 economical service
contract that covers seasonal inspections. Ask for further details.
WARRANTIES
You have purchased either a 50JS or 50JX series unit. Each
has a separate warranty at the back of this booklet. Be sure
to read the warranty carefully to determine the coverage for
your unit.
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 should you ever require information or service.
Filter Size Table
UNIT SIZE
50JX 024 030 036 042 048 060
RETURN-AIR
FILTERS (in.)
Throwaway
20 x 20 20 x 20 20 x 24 24 x 30 24 x 30 24 x 30
UNIT SIZE
50JS 018 024 030 036 042 048 060
RETURN-AIR
FILTERS (in.)
Throwaway
20 x 20 20 x 20 20 x 20 20 x 24 24 x 30 24 x 30 24 x 30
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 shut-
down of your unit while a filter is drying, you should have an
extra filter on hand. This allows you to rotate between the 2
with minimal downtime for your comfort system. Extra filters
may be purchased from your dealer.
The filters(s) and filter rack for a packaged system are supplied
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-air grille(s). Have your dealer show you the location of
your filter(s) and the procedures for removal and replacement.
If your system includes a high efficiency or electronic air
cleaner, refer to air cleaner User’s Manual for proper filter
cleaning or replacement.
OUTDOOR COIL
If grass clippings, leaves, shrubbery, and debris are kept away
from the unit, minimal care should be sufficient to keep the
system functioning properly. However, if the outdoor coil
becomes dirty, use a vacuum cleaner or shop vac 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 fins.
If dirt is deep in the coil, contact your dealer for service. 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 corrosive 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 which consists of peri-
odically washing the unit. By washing all exposed surfaces and
coil, you will be adding additional life to your unit. Please con-
sult your installing contractor for proper intervals/procedures
for your geographic area or service contact.
UNIT SUPPORT
Your packaged heat pump unit should be maintained at 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
promptly to assure 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.
BEFORE YOU REQUEST A
“SERVICE CALL”
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 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 thermostat. If you desire
cooling, make sure that the temperature control selector is set
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