Installation Manual

21
PACKAGE UNITS - HEAT PUMP AND AC UNITS
HOMEOWNER’S ROUTINE MAINTENANCE RECOMMENDATIONS
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 clean-
ers.
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.
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
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 inad-
equate heating or cooling performance. Filters should be cleaned
(permanent) or replaced (disposable) every two months or as re-
quired. 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 lubrica-
tion.
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 recommended
cleaning method for both copper tube and aluminum tube resi-
dential cooling coils.