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Page Title:
Power Cable (Visible Portions) |
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 TM9-4120-423-14&P
16
Power Cable (Visible Portions)
a
Check that cable is in good condition.
b
Check that cable is placed so that it will not be damaged or create problems for operating
personnel.
c
Check that all connections are tight.
17
Operational Checks
a.
Be sure the mode selector switch is in the OFF position.
CAUTION
If military operational considerations allow the time, it will help extend the life of
the compressor if the air conditioner is not turned on for its check of operation in
the COOL mode until after a sufficient time to eliminate any danger of liquid
refrigerant accumulation in the compressor. Except in extremely cold conditions,
if input power has been disconnected for a period of less than six hours, an equal
warm-up period is desirable. If the disconnected period has been more than six
hours, a full six-hour warm-up period is recommended.
b.
Perform functional check of the air conditioner in all operational modes in accordance
with the instructions in WP0006.
18
Run Indicator Light
a
Light should be illuminated in all operating modes.
b
Light may also be checked with MODE SELECTOR SWITCH in OFF position. Push in.
Light should light.
c
Replace bulb if necessary. (See WP0060).
19
Time Totalizing Meter
Meter should operate in all operating modes.
20
Sight Glass
a
Operate air conditioner at least 15 minutes in COOL MODE with TEMPERATURE
CONTROL set at COOLER.
b
Center indicator on sight glass should be green. Refrigerant should be clear with no
bubbles.
c
If center indicator is yellow, or refrigerant is milky, or bubbles are seen, report condition
to direct support maintenance.
0012 00-4
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