Fastener Torque Values; Troubleshooting - Carrier 38AU 16 Series Installation, Start-Up And Service Instructions Manual

Air-cooled condensing units with puron (r-410a) refrigerant
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TOTALINE ENVIRONMENTALLY BALANCED COIL
CLEANER APPLICATION EQUIPMENT
2-1/2 gallon garden sprayer
water rinse with low velocity spray nozzle
CAUTION
UNIT DAMAGE HAZARD
Failure to follow this caution may result in accelerated
corrosion of unit parts.
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 environmentally balanced coil
cleaner.
IMPORTANT: 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 air-side pressure drop, resulting in
reduced unit performance.
Totaline Environmentally Sound Coil Cleaner Application
Instructions:
NOTE: Proper eye protection such as safety glasses is recom-
mended during mixing and application.
1.
Turn off unit power.
2.
Remove screws holding rear corner post and top cover in
place. Pivot top cover up 12 to 18 inches (305 to 457 mm)
and support with a rigid support. See Fig. 39.
Top
Cover
Fig. 39 — Pivot and Support Top Cover
3.
Remove all surface loaded fibers and dirt with a vacuum
cleaner. If a vacuum cleaner is not available, a soft non-metal-
lic bristle 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 can be easily bent over and damage to the
coating of a protected coil) if the tool is applied across the
fins.
NOTE: Use of a water stream, such as a garden hose, against sur-
face loaded coil will drive the fibers and dirt into the coil, making
cleaning efforts more difficult. Surface loaded fibers must be com-
pletely removed prior to using low velocity clean water rinse.
4.
Using a low velocity garden hose thoroughly wet finned sur-
faces with clean water. Be careful not to bend the fins.
5.
Mix Totaline environmentally balanced coil cleaner in a
2-1/2 gallon garden sprayer according to the instructions
included with the cleaner. The optimum solution tempera-
ture is 100°F (38°C).
NOTE: Do NOT USE water in excess of 130°F (54°C), as the
enzymatic activity will be destroyed.
6.
Thoroughly apply Totaline environmentally balanced coil
cleaner solution to all coil surfaces including the finned area,
tube sheets and coil headers.
7.
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.
8.
Ensure cleaner thoroughly penetrates deep into finned areas.
9.
Interior and exterior finned areas must be thoroughly cleaned.
10. Finned surfaces should remain wet with cleaning solution for
10 minutes.
11. Ensure surfaces are not allowed to dry before rinsing. Reap-
ply cleaner as needed to ensure 10-minute saturation is
achieved.
12. Thoroughly rinse all surfaces with low velocity clean water
using downward rinsing motion of water spray nozzle. Pro-
tect fins from damage from the spray nozzle.
13. Replace top cover and rear corner posts.

Fastener Torque Values

See Table 21 for torque values.
Rigid
Support
Compressor mounting bolts
Condenser fan motor mounting bolts
Condenser fan hub setscrew
High-flow service port
Schrader-type service check valve
Compressor oil sight-glass thread
Compressor to Compressor rail torque
Compressor rail to base pan torque
See Table 22 for troubleshooting.
37
Table 21 — Torque Values
ITEM
TORQUE VALUE
65-75 in.-lb
(734-847 N-cm)
20 ± 2 in.-lb
(226 ± 23 N-cm)
84 ± 2 in.-lb
(949 ± 136 N-cm)
96 ± 10 in.-lb
(1085 ± 23 N-cm)
2-3 in.-lb
(23-34 N-cm)
330 ± 31 in.-lb
(23-34 N-cm)
120-168 in.-lb
(1356-1898 N-cm)
70 ± 5 in.-lb
(791 ± 57 N-cm)

TROUBLESHOOTING

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