Installation Manual

Maintenance
Failure to follow instructions will cause damage to the
unit.
This unit is equipped with an aluminum coil. Aluminum
pH below 5 or above 9. The aluminum coil should be
cleaned using potable water at a moderate pressure
(less than 50 psi). If the coil cannot be cleaned using
water alone, AAE recommends use of a coil cleaner
with a pH in the range of 5 to 9. The coil must be rinsed
thoroughly after cleaning.
In coastal areas, the coil should be cleaned with potable
water several times per year to avoid corrosive buildup
(salt).
NOTE
A trained technician or service agency must perform
maintenance and service on equipment. At the beginning
of each heating or cooling season, indoor coils should be
cleaned.
on coils. These chemicals are not necessary to dissolve
used to dissolve oils and greases, which generally are not
present on most installations.
Cleaning The Coil
1. Remove the coil from the cabinet or plenum, and take
the coil to an appropriate place to clean it.
2. Vacuum or brush the coil to remove matted and
3. If oil deposits are present, spray the coil with a mild
household liquid detergent to soften deposits. Do
not leave the detergent on the coil for more than 10
minutes. Flush the coil thoroughly with potable water.
NOTE: For units in coastal regions, fresh water will
4. Spray the coil at a vertical angle of 30 to 45 degrees
with a constant stream of water at moderate pressure.
A pressure washer with a fan nozzle will work best. Do
not spray the coil from a horizontal direction.
5. Direct the spray so that any debris is washed out of the
coil and base pan. For most residential units, hot water
is not necessary.
NOTE:
coil will require removing parts from the unit, and it
Attempting to blow water through a coil will slow the
6. Replace the coil into the cabinet or plenum. Ensure
that you have followed the proper procedure for routing
and securing the refrigerant tubing.
Ensure that the distributor lines are not rubbing together
or kinked. All tubes must have enough clearance from
other metal parts. Use wire ties to secure tubes to
prevent movement that could cause the refrigerant
tubing to fail.
IMPORTANT
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