16
PACKAGE UNITS - HEAT PUMP AND AC UNITS
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.
Replace or Clean Filter
WARNING
HIGH VOLTAGE!
Disconnect all power before servicing or in-
stalling this unit. Multiple power sources may
be present. Failure to do so may cause proper-
ty damage, personal injury or death.
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 water, dried completely and sprayed
with an adhesive according to the manufacturers
recommendations.
You may want to ask your dealer about high efficiency
filters. High efficiency filters are available in both electronic
and non-electronic types. These filters can do a better job
of catching small airborne particles.
Improper filter maintenance is the most common cause of
inadequate 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 and Evaporator Motors
The bearings on the air circulating blower motor and
condenser motor are permanently lubricated and require
no further lubrication.
Compressor
The compressor motor is hermetically sealed and does not
require 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 recommended 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 the system is
performing properly and safely. 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.
• Check both condenser and evaporator coil to make
sure each are clean.
• Return Air Connection
. Check for physical
soundness and ensure that the connection is firmly
sealed to the package unit casing.
• Wiring
. Check wires for damage. Check electrical
connections 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
exchanger compartments. Ensure the area is clean
and free of dirt and debris.
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 obstruction 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.
