Specifications
54
Remove Surface Loaded Fibers
— Surface loaded fibers or
dirt should be removed with a vacuum cleaner. If a vacuum
cleaner is not available, a soft brush may be used. In either
case, the tool should be applied in the direction of the fins. Coil
surfaces can be easily damaged (fin edges bent over) if the tool
is applied across the fins.
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 low velocity
clean water rinse.
Periodic Clean Water Rinse
— A periodic clean water rinse is
very beneficial for coils that are applied in coastal or industrial
environments. However, it is very important that the water
rinse is made with very low velocity water stream to avoid
damaging the fin edges. Monthly cleaning as described below
is recommended.
Routine Cleaning of Coil Surfaces
— Monthly cleaning with
Environmentally Sound Coil Cleaner is essential to extend the
life of coils. It is recommended that all coils, including
standard aluminum, pre-coated, copper/copper or E-coated
coils are cleaned with the Environmentally Sound Coil Cleaner
as described below. Coil cleaning should be part of the units
regularly scheduled maintenance procedures to ensure long life
of the coil. Failure to clean the coils may result in reduced
durability in the environment.
Environmentally Sound Coil Cleaner is non-flammable,
hypoallergenic, non-bacterial, USDA accepted biodegradable
and 100% ecologically safe agent that will not harm the coil or
surrounding 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.
Environmentally Sound Coil Cleaner Application Equipment
•2
1
/
2
Gallon Garden Sprayer
• Water Rinse with Low Velocity Spray Nozzle
Environmentally Sound Coil Cleaner Application Instruc-
tions — Although Environmentally Sound Coil Cleaner is
harmless to humans, animals, and marine life, proper eye pro-
tection such as safety glasses is recommended during mixing
and application.
1. Remove all surface loaded fibers and dirt with a vacuum
cleaner as described above.
2. Thoroughly wet finned surfaces with clean water and a
low velocity garden hose being careful not to bend fins.
3. Mix Environmentally Sound Coil Cleaner in a 2
1
/
2
gallon
garden sprayer according to the instructions included
with the Enzyme Cleaner. The optimum solution temper-
ature is 100 F.
NOTE: DO NOT USE
water in excess of 130 F as the enzy-
matic activity will be destroyed.
4. Thoroughly apply Environmentally Sound Coil Cleaner
solution to all coil surfaces including finned area, tube
sheets and coil headers.
5. Hold garden sprayer nozzle close to finned areas and
apply cleaner with a vertical, up-and-down motion. Avoid
spraying in horizontal pattern to minimize potential for
fin damage.
6. Ensure cleaner thoroughly penetrates deep into finned
areas. Interior and exterior finned areas must be
thoroughly cleaned. Finned surfaces should remain wet
with cleaning solution for 10 minutes. Ensure surfaces are
not allowed to dry before rinsing. Reapply cleaner as
needed to ensure 10-minute saturation is achieved.
7. Thoroughly rinse all surfaces with low velocity clean
water using downward rinsing motion of water spray
nozzle. Protect fins from damage from the spray nozzle.
Condenser Fans (30GXN,R Only) — Each fan is
supported by a formed wire mount bolted to a fan deck and
covered with a wire guard. The exposed end of the fan motor
shaft is protected from weather by grease. If the fan motor must
be removed for service or replacement, be sure to regrease fan
shaft and reinstall fan cover, retaining clips, and fan guard. For
proper performance, the fans should be positioned as shown in
Fig. 26 or 27. Tighten setscrews to 14 1 ft-lb (18 1.3 N-m).
Check for proper rotation of the fan(s) once reinstalled
(clockwise for high static and counterclockwise for standard
viewed from above). If necessary to reverse, switch leads at
contactor(s) in control box.
Harsh Chemical and Acid Cleaners — Harsh chemical,
household bleach or acid cleaners should not be used
to
clean outdoor or indoors coils of any kind. These cleaners
can be very difficult to rinse out of the coil and can acceler-
ate corrosion at the fin/tube interface where dissimilar
materials are in contact. If there is dirt below the surface of
the coil, use the Environmentally Sound Coil Cleaner as
described above.
High Velocity Water or Compressed Air
— High veloc-
ity 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. Reduced unit performance
or nuisance unit shutdown may occur.
PLASTIC FAN
PROPELLER
CLEARANCE OF 0.25 INCHES
(6.4 MM) FOR STANDARD
CONDENSER FANS
FAN DECK
SURFACE
FAN ORIFICE
POSITION TOP OF HIGH STATIC FAN PROPELLER HUB
2.15 INCHES (54.6 mm) ABOVE FAN DECK SURFACE
FAN DECK
SURFACE
HIGH-STATIC
FAN
PROPELLER
FAN HUB
2.15 IN.
MOTOR
SHAFT
Fig. 26 — Condenser Fan Position (Standard Fan)
Fig. 27 — Condenser Fan Position
(High-Static Fan)