Section VI. MAINTENANCE PROCEDURES

TM5-4120-347-14

Section VI.

MAINTENANCE PROCEDURES

The procedures in this section have been arranged in the order in which the items appear in the

organizational (O) maintenance level column on the Maintenance Allocation Chart (MAC) which is provided in

Appendix C. Step-by-step procedures have been provided for all actions authorized to be performed by

organizational maintenance in the order in which they appear on the MAC. Actions authorized to be performed

by direct and general support maintenance have been duly noted; step-by-step procedures for these actions

may be found in Chapters 5 and 6 respectively.

4-14 INSTALLATION CONNECTORS See Figure 4-8.

a. There are three connectors supplied with each air conditioner,

(1) Input power cable connector (P1). This connector is used at the unit end of the input power cable, It

can be connected to the J1 receptacle located above the control module or the J11 receptacle located on the

upper Ieft rear corner of the unit.

NOTE

If the J11 receptacle is used see paragraph 4-6 and figure 4-2 for wiring changes.

(2) Remote control module cable connectors. The other two connectors are used when the control

module is to be installed remote from the air conditioner. See paragraph 4-6.

Disconnect input power from the air conditioner before performing maintenance on any part of the

electrical system. The voltages used can be lethal.

(3) Disconnect power at power source.

(4) Inspect. The power cable connector and the remote control cable connectors (when used) should be

inspected for;

Loose, missing or damaged pins.

Loose, damaged, cut or broken wires to the connector.

Loose or bad solder connections

Excessive corrosion.

Obvious damage.

Repair loose wires and solder connections.

Replace damaged wires or connectors and connectors with missing, loose or damaged pins.