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TM-5-4120-361-14 Air Conditioner Vertical Compact 18 000 BTU/HR 208 Volts 3 Phase 50/60 Hz (Model 18K 208 3 60) Manual
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AIR CONDITIONER FAILS TO OPERATE - TM-5-4120-361-14_42
TM 5-4120-361-14 Chapter 3 MAINTENANCE  INSTRUCTIONS Section  I. LUBRICATION  INSTRUCTIONS 3-1. Fan  Motors. 3-2. Compressor. The evaporator and condenser motors The compressor and compressor motor are permanently lubricated by the manu- are fully lubricated by the manufac- facturer and require no additional turer and require no additional lubrica- lubrication. tion. 3-3. General. Section  II. This section contains information that is useful in diagnosing and correcting troubles which cause unsat- isfactory operation or failure of the air conditioner. 3-4. Operator’s Troubleshooting Chart. Troubleshooting procedures for opera- tor-crew are listed in table 3-1. TROUBLESHOOTING followed by a list of tests or inspec- tions which will help you to determine corrective actions to take. You should perform the tests/inspections and cor- rective actions in the order listed. b. This manual cannot list all mal- functions that may occur, nor all tests or inspections and corrective actions. If a malfunction is not listed or is not corrected by listed corrective actions, notify your supervisor. a. This section contains trouble- c. The table lists the common mal- shooting information for locating and functions which you may find during the correcting most of the operating operation or maintenance of the air con- troubles which may develop in the air ditioner or its components. You should conditioner. Each malfunction for an perform the tests/inspections and cor- individual component, unit, or system is rective actions in the order listed. Section  III. MAINTENANCE PROCEDURES. 3-5. General. This section contains maintenance procedures for the operator of the air conditioner. Operator maintenance is limited to inspection and procedures that can be accomplished without the aid of servicing tools. Any indications of need for servicing resulting from in- spection are to be reported to organiza- tional or direct support maintenance. 3-6. Condenser Fabric Cover. Inspect condenser fabric cover for torn  places. Repair minor tears with waterproof tape. Report extensive dam- age to organizational maintenance. 3-7. Drains. Inspect condensate water drains, fig- ure 1-2, for obstructions. Remove ob- structions. Report total blockage to organizational  maintenance. 3-8. Liquid Sight Indicator. Wipe refrigerant liquid sight indica- tor glass, figure 1-2, with a soft, clean cloth, set controls, figure 2-1, at COOL-COOLER, operate air conditioner for 15 minutes, then observe liquid sight indicator. Yellow  appearance indicates moisture in system. Bubbles or milky flow indicate low refrigerant charge. Report presence of these condi- tions to direct support maintenance. 3-1

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