MECHANICAL AND ELECTRICAL REPAIRS

TM 9-4120-430-14

0016 00

UNIT MAINTENANCE

AIR CONDITIONER, COMPACT, HORIZONTAL

MECHANICAL AND ELECTRICAL REPAIRS

WARNING

Disconnect air conditioner power supply.

Maintenance of Mechanical Parts

The mechanical maintenance covered in this chapter include:

Canvas Cover...................................................................................................................................................... WP 0017 00

Condensate Drain Tube Assembly ..................................................................................................................... WP 0024 00

Condenser Air Discharge Louver ....................................................................................................................... WP 0021 00

Condenser Coil Guard ........................................................................................................................................ WP 0024 00

Covers and Fresh Air Screen .............................................................................................................................. WP 0018 00

Evaporator Air Intake Filter................................................................................................................................ WP 0023 00

Evaporator Louvers ............................................................................................................................................ WP 0020 00

Fresh Air Damper ............................................................................................................................................... WP 0025 00

Information Plates............................................................................................................................................... WP 0019 00

Installation Hardware ......................................................................................................................................... WP 0039 00

Louver Actuator Cables ...................................................................................................................................... WP 0032 00

Mist Eliminator................................................................................................................................................... WP 0022 00

Maintenance of Electrical System

The electrical system is made up of:

Circuit Breaker ................................................................................................................................................... WP 0027 00

Coil (Solenoid Valve) ......................................................................................................................................... WP 0032 00

Compressor (S9150-18K-1) Capacitors (C3) and (C4) ...................................................................................... WP 0033 00

Condenser Fan and Motor .................................................................................................................................. WP 0037 00

Electrical Components ....................................................................................................................................... WP 0028 00

Evaporator Fan Assembly .................................................................................................................................. WP 0035 00

Heater Cutout Switch S3 .................................................................................................................................... WP 0034 00

Electrical Heater Elements ................................................................................................................................. WP 0036 00

Main Power Input Connectors (J1) and (J2) ....................................................................................................... WP 0029 00

Remote Control Module ..................................................................................................................................... WP 0026 00

Transformer ........................................................................................................................................................ WP 0030 00

Unit Wiring......................................................................................................................................................... WP 0031 00

Wire Lists and Schematic Diagrams................................................................................................................... WP 0038 00

Testing and Inspecting the Electrical System

WARNING

Ensure air conditioner power source is disconnected.

Troubleshooting procedures for testing the electrical system to isolate causes of trouble are discussed in WP 0013 00.

More detailed test information is contained in specific paragraphs about the electrical components.

Use a multimeter set on low-resistance range to test for continuity.

0016 00-1