Microchannel Coil Cleaning - AAON RN SERIES Installation Operation & Maintenance

CAUTION
Harsh chemicals, household bleach,
or acid cleaners should not be used
to clean outdoor or indoor e-coated
coils. These cleaners can be very
difficult to rinse out of the coil and
can accelerate corrosion and attack
the e-coating. If there is dirt below the
surface of the
recommended coil cleaners.
For routine quarterly cleaning, first clean the
coil with the below
cleaner. After cleaning the coils with the
approved cleaning agent, use the approved
chloride remover to remove soluble salts and
revitalize the unit.
Recommended Coil Cleaner
The following cleaning agent, assuming it is
used in accordance with the manufacturer's
directions on the container for proper mixing
and cleaning, has been approved for use on
e-coated coils to remove mold, mildew,
dust, soot, greasy residue, lint, and other
particulate:
Enviro-Coil Concentrate, Part Number H-
EC01.
Recommended Chloride Remover
CHLOR*RID DTS™ should be used to
remove soluble salts from the e-coated coil,
but the directions must be followed closely.
This product is not intended for use as a
degreaser. Any grease or oil film should first
be removed with the approved cleaning
agent.
Remove Barrier - Soluble salts adhere
themselves to the substrate. For the effective
use of this product, the product must be able
to come in contact with the salts. These salts
may be beneath any soils, grease or dirt;
therefore, these barriers must be removed
prior to application of this product. As in all
coil, use the
approved coil
surface preparation, the best work yields the
best results.
Apply CHLOR*RID DTS - Apply directly
onto the substrate. Sufficient product must
be applied uniformly across the substrate to
thoroughly wet out surface, with no areas
missed. This may be accomplished by use of
a pump-up sprayer or conventional spray
gun. The method does not matter, as long as
the entire area to be cleaned is wetted. After
the substrate has been thoroughly wetted,
the salts will be soluble and is now only
necessary to rinse them off.
Rinse - It is highly recommended that a hose
be used, as a pressure washer will damage
the fins. The water to be used for the rinse is
recommended to be of potable quality,
though a lesser quality of water may be used
if a small amount of CHLOR*RID DTS is
added. Check
International, Inc. for recommendations on
lesser quality rinse water.

Microchannel Coil Cleaning

Air-cooled heat exchangers may include
microchannel coils.
Cleaning microchannel coils is necessary in
all locations. In some locations it may be
necessary to clean the coils more or less
often than recommended. In general, a
condenser coil should be cleaned at a
minimum of once a year. In locations where
there is commonly debris or a condition that
causes dirt/grease build up it may be
necessary to clean the coils more often.
Proper procedure should be followed at
every cleaning interval. Using improper
cleaning technique or incorrect chemicals
will result in coil
performance fall off, and potentially leaks
requiring coil replacement.
with CHLOR*RID
damage, system
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