27
Replace or Clean Filter
IMPORTANT NOTE:
Never operate unit without a filter installed
as dust and lint will build up on internal parts resulting in loss of
efficiency, equipment damage and possible fire.
A return air filter is not supplied with this unit; however, there
must be a means of filtering the return air. An indoor air filter
must be used with your comfort system. A properly maintained
filter will keep the indoor coil of your comfort system clean. A
dirty coil could cause poor operation and/or severe equipment
damage.
The installer of your unit can tell you where your filter(s) are and
how to clean or replace them.
Check your return filter(s) at least once every two months.
When they are dirty, replace or clean as required. Disposable
type filters should be replaced. Reusable type filters may be
cleaned.
NOTE:
Reusable type filters should be washed with warm wa
-
ter, dried completely and sprayed with an adhesive according
to the manufacturers recommendations.
You may want to ask your dealer about high efficiency fil
-
ters. High efficiency filters are available in both electronic and
non-electronic types. These filters can do a better job of catch
-
ing small airborne particles.
Improper filter maintenance is the most common cause of in
-
adequate heating or cooling performance. Filters should be
cleaned (permanent) or replaced (disposable) every two months
or as required. When replacing a filter, it must be replaced with
a filter of the same type and size and always make certain the
air flow arrows on the filter point in the proper direction.
Condenser, Evaporator and Induced Draft Motors
The bearings on the air circulating blower motor, condenser
motor and the combustion fan motor are permanently lubricat-
ed and require no further lubrication.
Compressor
The compressor motor is hermetically sealed and does not re-
quire additional oiling.
Aluminum Indoor Coil Cleaning (Qualified Servicer
Only)
This unit is equipped with an aluminum tube evaporator coil.
The safest way to clean the evaporator coil is to simply flush the
coil with water. This cleaning practice remains as the recom-
mended cleaning method for both copper tube and aluminum
tube residential cooling coils. An alternate cleaning method is
to use one of the products listed in the technical publication
TP-109 (shipped in the literature bag with the unit) to clean the
coils. The cleaners listed are the only agents deemed safe and
approved for use to clean round tube aluminum coils. TP-109 is
available on the web site in Partner Link > Service Toolkit.
NOTE:
Ensure coils are rinsed well after use of any chemical
cleaners.
Annual Inspection (Qualified Servicer Only)
Your package unit should be inspected by a qualified installer,
or service agency at least twice every year. This check should
be performed before the heating and cooling seasons begin.
This will ensure that adequate combustion air is being drawn
and the vent system is working properly. Particular attention
should be paid to the following items. Repair as necessary.
• Check physical support of the unit. Ensure it is sound
without any sagging, cracks, or gaps, around the base.
• Check for obvious signs of deterioration of the unit.
• Flue Hood and Combustion Air Inlet. Check for blockage
(wasp nest, etc.) and corrosion.
Flue Hood (Qualified Servicer Only)
• Return Air Connection. Check for physical soundness and
ensure that the connection is firmly sealed to the package
unit casing.
• Heat exchanger. Check for corrosion and/or obstructions
within the heat exchanger passageways.
•
Burners. Check for proper ignition, burner flame, and
flame sense.
• Wiring. Check wires for damage. Check electrical connec-
tions for tightness and/or corrosion.
•
Filters. Check that filters are clean and in the proper
placement in the unit or duct system.
• Louvers. Inspect air inlet louvers inside the heat exchang-
er compartments. Ensure the area is clean and free of dirt
and debris.
Clean Outside Coil (Qualified Servicer Only)
The outdoor coil should be inspected annually. It is important to
keep the outdoor coil clean. Dirt, leaves, or debris could restrict
the airflow. If cleaning of the outdoor coil becomes necessary,
hire a qualified servicer. Inexperienced people could easily
puncture the tubing in the coil.
Before Calling Your Servicer
•
Check the thermostat to confirm that it is properly set.
•
Check the disconnect switch near the unit to confirm that
it is closed.
• Check the electrical panel for tripped circuit breakers or
failed fuses. Reset the circuit breakers or replace fuses
as necessary.
• Check for blockage of the indoor air inlets and outlets.
Confirm that they are open and have not been blocked by
objects (rugs, curtains or furniture).
•
Check for obstructions on the unit. Confirm that it has not
been covered on the sides or the top. Remove any ob-
struction that can be safely removed. If the unit is covered
with dirt or debris, call a qualified servicer to clean it.
•
Check the filter. If it is dirty, clean or replace it.
PACKAGE UNITS
- DUAL FUEL & GAS
HOMEOWNER’S ROUTINE MAINTENANCE RECOMMENDATIONS
We strongly recommend a bi-annual maintenance checkup be performed by a
qualified service agency
before the heating and cooling seasons begin.
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