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TABLE 3-1. -- OPERATOR TROUBLESHOOTING
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TM-5-4120-347-14 Air Conditioner Horizontal Compact 9 000 BTU/HR 208 Volt 3 Phase 60 Hertz Manual
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Section II. SERVICE UPON RECEIPT OF EQUIPMENT - TM-5-4120-347-140038
TM5-4120-347-14
MAINTENANCE INSTRUCTIONS
Section/Paragraph
Repair Parts, Special Tools, TMDE, and Support
Condenser Air Discharge Louver
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..I
and Linkage . . . . . . . . . . . . . . . . . . . . . . . . ...4-23
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...4-1
Fresh Air Damper and Actuator . . . . . . . . . . ...4-24
Service upon Receipt of Equipment . . . . . . . . . . . ..II
Condensate Drain . . . . . . . . . . . . . . . . . . . . . . ...4-25
Unloading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...4-2
Electrical Wiring Repair General. . . . . . . . . ...4-26
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...4-3
Control Module . . . . . . . . . . . . . . . . . . . . . . . . ...4-27
Receiving Inspection . . . . . . . . . . . . . . . . . . . . ...4-4
Temperature Selector (Thermostat) S3. . . . ...4-28
Installation Site Preparation . . . . . . . . . . . . . . ...4-5
Evaporator Fan Speed SwitchS2 . . . . . . . . . ...4-29
Air Conditioner Preparation for Installation. ... 4-6
Mode Selector Switch So....... . . . . . . . . . ...4-30
Installation Instructions . . . . . . . . . . . . . . . . . . ...4-7
Compressor Circuit Breaker CB1 . . . . . . . . . ...4-31
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..III
Control Module Wiring Harness . . . . . . . . . . ...4-32
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...4-8
Junction Box . . . . . . . . . . . . . . . . . . . . . . . . . . . ...4-33
Mechanical Lubrication . . . . . . . . . . . . . . . . . . ...4-9
Junction Box Wiring Harness . . . . . . . . . . . . ...4-34
Preventive Maintenance Checks and Services
Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...4-35
(PMCS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IV
Control Circuit Breaker CB2. . . . . . . . . . . . . ...4-36
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...4-10
Miscellaneous Cables, Harnessesand
Inspection and Service . . . . . . . . . . . . . . . . . . ...4-11
Terminal Boards . . . . . . . . . . . . . . . . . . . . . ...4-37
Troubleshooting . . . . . . . . . . . . ... . . . . . . . . . . . . ..V
Transformer, Rectifer, Resistor,
Use of Troubleshooting Table . . . . . . . . . . . . ...4-12
Capacitors and Harness. . . . . . . . . . . . . . . ...4-38
Maintenance Procedures. ... , . . . . . . . . . . . . . . . . ..VI
Condenser Fan Thermostatic Switch . . . . . ...4-39
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...4-13
Evaporator Fan, Housing and Motor . . . . . . . ..4-40
Installation Connectors . . . . . . . . . . . . . . . . . ...4-14
Heater Thermostat . . . . . . . . . . . . . . . . . . . . . . ...4-41
Information Plates, . . . . . . . . . . . . . . . . . . . . . ...4-15
Heater Elements . . . . . . . . . . . . . . . . . . . . . . . . ...4-42
Installation Hardware . . . . . . . . . . . . . . . . . . . ...4-16
Condenser Fan, Motor and Housing . . . . . . ...4-43
Fabric Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . ...4-17
Evaporator Coil Cleaning . . . . . . . . . . . . . . . ...4-44
Top Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...4-18
Solenoid Valve Coil Removal . . . . . . . . . . . . ...4-45
Return Air Louverand Filter . . . . . . . . . . . . . ...4-19
Condenser Coil . . . . . . . . . . . . . . . . . . . . . . . . ...4-46
Supply Air Louver . . . . . . . . . . . . . . . . . . . . . . ...4-20
Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...4-47
Screens and Guards . . . . . . . . . . . . . . . . . . . . ...4-21
Preparation for Storage or Shipment . . . . . . . . . . ..VII
Mist Eliminator . . . . . . . . . . . . . . . . . . . . . . . . . ...4-22
Preparation for Storage . . . . . . . . . . . . . . . . . ...4-48
Section I.
REPAIR PARTS, SPECIAL TOOLS, TMDE, AND SUPPORT EQUIPMENT
GENERAL
a. Repair parts are listed and illustrated in TM5-4120-347-24P, No special tools are required for
maintenance of the equipment. Test, maintenance and diagnostic equipment (TMDE), and support equipment
include standard electrical test equipment found in any organizational maintenance electric shop.
b. For authorized common tools and equipment refer to the Modified Table of Organization and Equipment
(MTOE) applicable to your unit.
c. Tool Kit, Service, Refrigeration Unit, NSN 5180-00-596-1474, contains hand tools and equipment used for
air conditioner maintenance. The following common items not contained in the refrigeration unit tool kit are
also required for air conditioner maintenance.

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