AMST Installation Manual
25
AIR HANDLER
AIR HANDLER HOMEOWNER’S ROUTINE MAINTENANCE RECOMMENDATIONS
Replace or Clean Filter
installed as dust and lint will build up on internal parts
your comfort system clean. A dirty coil could cause poor
operation and/or severe equipment damage.
installer of your air conditioner or heat pump can tell you
of catching small airborne particles.
Motors
Indoor and outdoor fan motors are permanently lubricated
and do not require additional oiling.
WARNING
HIGH VOLTAGE
DISCONNECT ALL POWER BEFORE SERVICING
OR INSTALLING THIS UNIT. MULTIPLE POWER
SOURCES MAY BE PRESENT. FAILURE TO DO
SO MAY CAUSE PROPERTY DAMAGE, PERSON-
AL INJURY OR DEATH.
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
the recommended cleaning method for both copper tube
and aluminum tube residential evaporator coils.
It has been determined that many coil cleaners and drain
pan tablets contain corrosive chemicals that can be harmful
time application of these corrosive chemicals can cause
premature aluminum evaporator coil failure. Any cleaners
that contain corrosive chemicals including, but not limited
to, chlorine and hydroxides, should not be used.
An alternate cleaning method is to use one of the products
listed in TP-109* 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 also available
on the web site in Partner Link > Service Toolkit.
NOTE: Ensure coils are rinsed well after use of any
chemical cleaners.
CAUTION
TO AVOID THE RISK OF EQUIPMENT DAMAGE OR FIRE, IN-
STALL THE SAME AMPERAGE BREAKER OR FUSE AS YOU
ARE REPLACING. IF THE CIRCUIT BREAKER OR DUSE SHOULD
OPEN AGAIN WITHIN THIRTY DAYS, CONTACT A QUALIFIED
SERVICER TO CORRECT THE PROBLEM.
IF YOU REPEATEDLY RESET THE BREAKER OR REPLACE THE
FUSE WITHOUT HAVING THE PROBLEM CORRECTED, YOU RUN
THE RISK OF SEVERE EQUIPMENT DAMAGE.
BEFORE YOU CALL YOUR SERVICER
• Check the thermostat
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
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
• Check for obstructions on the outdoor unit.
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,
• Check for blockage of the indoor air inlets and
outlets.
been blocked by objects (rugs, curtains or furniture).
• 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