Tubing and Fittings - TM-5-4120-393-140282

TM 5-4120-393-14

5-29. Tubing and Fittings

This task covers:

a. Removal

b. Installation

Initial setup.

Tools:

Tool kit, service, refrig eration unit NSN 5180-00-596-1474

Leak detector NSN 4940-00-531-0362

Personnel: 1

Materials:

Equipment condition:

1. Turn unit power off at power source. If there is a chance that it will be turned on, also disconnect power cable

to air conditioner.

General Safety Instructions:

WARNING

Disconnect input power to the air conditioner before performing any internal

maintenance. Voltages used can KILL. Shutting the unit off at the control panel

does not disconnect unit power.

NOTE

The refrigeration system contains a number of pieces of copper tubing in a variety

of material grades, sizes, lengths, and shapes, and a number of elbows, tees, and

adapters in several sizes. Observe the following when replacing any piece of

tubing or fitting in the system.

Remove covers and panels as necessary to have access to repair area.

REMOVAL

Discharge the refrigeration system. See para 5-9.

Purge the system with nitrogen (para 5-10) and debraze (para 5-11) the tube connections.

Remove the part.

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