AWST Installation Manual
12
SPLIT SYSTEMS
We strongly recommend a biannual maintenance checkup be performed before the heating and cooling seasons begin by a qualied servicer.
Replace or Clean Filter
IMPORTANT NOTE: Never operate unit without a lter installed as dust and lint will build up on internal parts resulting in loss of eciency,
equipment damage and possible re.
An indoor air lter must be used with your comfort system. A properly maintained lter will keep the indoor coil of your comfort system clean.
A dirty coil could cause poor operation and/or severe equipment damage.
Your air lter or lters could be located in your furnace, in a blower unit, or in “lter grilles” in your ceiling or walls. The installer of your air
conditioner or heat pump can tell you where your lter(s) are, and how to clean or replace them.
Check your lter(s) at least once a month. When they are dirty, replace or clean as required. Disposable type lters should be replaced.
Reusable type lters may be cleaned.
You may want to ask your dealer about high eciency lters. High eciency lters are available in both electronic and non-electronic types.
These lters can do a better job of catching small airborne particles.
Compressor
The compressor motor is hermetically sealed and does not require
additional oiling.
Motors
Indoor and outdoor fan motors are permanently lubricated and do not
require additional oiling.
This unit is equipped with an aluminum tube evaporator coil. The safest way to clean the evaporator coil is to simply ush 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
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.
Air must be able to ow through the outdoor unit of your comfort system. Do not construct a fence near the unit or build a deck or patio over the
unit without rst discussing your plans with your dealer or other qualied servicer. Restricted airow could lead to poor operation and/or severe
equipment damage.
Likewise, it is important to keep the outdoor coil clean. Dirt, leaves, or debris could also restrict the airow. If cleaning of the outdoor coil
becomes necessary, hire a qualied servicer. Inexperienced people could easily puncture the tubing in the coil. Even a small hole in the tubing
could eventually cause a large loss of refrigerant. Loss of refrigerant can cause poor operation and/or severe equipment damage.
Do not use a condensing unit cover to “protect” the outdoor unit during the winter, unless you rst discuss it with your dealer. Any cover used
must include “breathable” fabric to avoid moisture buildup.
• Check the thermostat to conrm that it is properly set.
• Wait 15 minutes. Some devices in the outdoor unit or in
programmable thermostats will prevent compressor operation for
awhile, and then reset automatically. Also, some power companies
will install devices which shut o air conditioners for several
minutes on hot days. If you wait several minutes, the unit may begin
operation on its own.
• Check the electrical panel for tripped circuit breakers or failed
fuses. Reset the circuit breakers or replace fuses as necessary.
• Check the disconnect switch near the indoor furnace or blower to
conrm that it is closed.
• Check for obstructions on the outdoor unit . Conrm 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 qualied servicer to clean it.
• Check for blockage of the indoor air inlets and outlets. Conrm that they are open and have not been blocked by objects (rugs, curtains or
furniture).
• Check the lter. If it is dirty, clean or replace it.
• Listen for any unusual noise(s), other than normal operating noise, that might be coming from the outdoor unit. If you hear unusual
noise(s) coming from the unit, call a qualied servicer.
SOURCES MAY BE PRESENT. FAILURE TO DO SO
INJURY OR DEATH.
CAUTION
SERVICER TO CORRECT THE PROBLEM.
IF YOU REPEATEDLY RESET THE BREAKER OR REPLACE