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Table 3-1. ORGANIZATIONAL PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) (Continued) - 506780052
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TM-5-4120-359-14 Air Conditioner Split Package 18 000 BTU/HR Cooling 30 000 BTU/HR Heating 208 Volt 3 Phase 400 Hertz Manual
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Section IV TROUBLESHOOTING
TM 5-4120-359-14
Table 3-1. ORGANIZATIONAL PREVENTIVE MAINTENANCE
CHECKS AND SERVICES (PMCS) (cont.)
Item
Item To Be
No.
Inspected/Serviced
Procedures
24
Time Totalizing Meter
a. Meter should operate in all operating modes.
25
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.
26
Condensate Drain
After air conditioner has been running in cool mode, check it to see that no
water is dripping, except through drain.
Set-up the air conditioner for the desired operational mode.
Record performance of quarterly PMCS, including all corrective actions
taken.
NOTE
If the air conditioner has been in operation under unusual
conditions, the above PMCS items may be modified as
necessary to meet the further requirements due to the
unusual conditions.
3-19

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