Bryant 581J-17-28 Service And Maintenance Instructions page 10

NOTE: Use of a water stream, such as a garden hose,
against a surface-loaded coil will drive the fibers and dirt
into the coil. This will make cleaning efforts more
difficult. Surface-loaded fibers must be completely
removed prior to using a low-velocity clean water rinse. A
vacuum cleaner or a soft- bristled brush should be used to
remove surface-loaded fibers and dirt.
Periodic Clean Water Rinse
A periodic clean-water rinse is very beneficial for coils
that are used in coastal or industrial environments.
However, it is very important that the water rinse is made
with a very low-velocity water stream to avoid damage to
the fin edges. Monthly cleaning, as described below, is
recommended.
Routine Cleaning of Evaporator Coil Surfaces
Monthly cleaning with TotalineR environmentally sound
coil cleaner is essential to extend the life of the coils. This
cleaner is available from Bryant Replacement Parts
Division (p/n: P902- 0301 for one-gallon (3.8L) container,
and p/n: P902- 0305 for a 5-gallon (18.9L) container). It is
recommended that all round tube coils be cleaned as
described below. Coil cleaning should be part of the unit's
regularly scheduled maintenance procedures to ensure a
long life for the coil. Failure to clean the coils can result
in reduced durability in the environment. When cleaning
the coils, avoid use of the following:
S coil brighteners
S acid cleaning prior to painting
S high pressure washers
S poor quality water for cleaning
TotalineR environmentally sound coil cleaner is a non-
flammable, hypo allergenic, non bacterial, USDA accept-
ed biodegradable agent that will not harm the coil or sur-
rounding components such as electrical wiring, painted
metal surfaces, or insulation. Use of non−recommended
coil cleaners is strongly discouraged since coil and unit
durability could be affected.
Totaline Environmentally Sound Coil Cleaner
Application Equipment
S 2−1/2 gallon garden sprayer
S Water rinse with low velocity spray nozzle
CAUTION
EQUIPMENT HAZARD
Failure to follow this CAUTION can result in
corrosion and damage to the unit.
Harsh chemicals, household bleach or acid or basic
cleaners should not be used to clean outdoor or indoor
coils of any kind. These cleaners can be very difficult
to rinse out of the coil and can accelerate corrosion at
the fin/tube interface where dissimilar materials are in
contact. If there is dirt below the surface of the coil,
use the TotalineR environmentally sound coil cleaner.
WARNING
!
PERSONAL INJURY HAZARD
Failure to follow this WARNING can result in severe
personal injury and reduced unit performance.
High−velocity water from a pressure washer, garden
hose, or compressed air should never be used to clean
a coil. The force of the water or air jet will bend the
fin edges and increase airside pressure drop.
High−velocity water from a pressure washer can
cause severe injury upon contact with exposed body
tissue. Always direct the water stream away from the
body.
Totaline Environmentally Sound Coil Cleaner
Application Instructions
1. Proper protection such as safety glasses, gloves and
protective clothing are recommended during mixing
and application.
2. Remove all surface loaded fibers and dirt with a vacu-
um cleaner as described above.
3. Thoroughly wet finned surfaces with clean water and
a low velocity garden hose, being careful not to bend
fins.
4. Mix TotalineR environmentally sound coil cleaner in
a 2−1/2 gallon (9.6 L) garden sprayer according to the
instructions included with the cleaner. The optimum
solution temperature is 100_F (38_C).
NOTE: Do NOT USE water in excess of 130_F (54_C),
as the enzymatic activity will be destroyed.
5. Thoroughly apply TotalineR environmentally sound
coil cleaner solution to all coil surfaces, including
finned area, tube sheets and coil headers.
6. Hold the garden sprayer nozzle close to finned areas
and apply cleaner with a vertical, up−and−down mo-
tion.
7. Avoid spraying in a horizontal pattern to minimize
potential for fin damage.
8. Make sure the cleaner thoroughly penetrates deep into
the finned areas.
9. Interior and exterior finned areas must be thoroughly
cleaned.
10. Finned surfaces should remain wet with cleaning so-
lution for 10 minutes.
11. Make sure surfaces are not allowed to dry before rins-
ing. Reapply cleaner as needed to ensure 10−minute
saturation is achieved.
12. Thoroughly rinse all surfaces with low−velocity clean
water using a downward rinsing motion of the spray
nozzle. Protect fins from damage from the spray noz-
zle.
Evaporator Coil Metering Devices
The metering devices are multiple fixed−bore devices
(Acutrolt) swedged into the horizontal outlet tubes from
the liquid header, located at the entrance to each
evaporator coil circuit path. These are non−adjustable.
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