LEAK TESTING THE REFRIGERANT R-22 SYSTEM

TM9 4120-423-14&P

LEAK TESTING THE REFRIGERANT R-22 SYSTEM

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THIS WORK PACKAGE COVERS:

Testing

Tools and Special Tools

Refrigerant R-22 Gas Leak Detector

Charging Manifold

Materials/Parts

Refrigerant R-22

BB-F-1421, type 22

Personnel Required

Direct Support Technician

Equipment Conditions

Air conditioner removed from shelter, if

necessary

Refrigerant R-22 system discharged (See

Refrigerant R-22 system purged (See

Any brazing/debrazing procedure completed

TESTING

The entire repair area should be thoroughly leak tested after repair or replacement of any component,

before it is recharged with Refrigerant-22. Leak testing is also the method for troubleshooting when a

system has lost all or part of its Refrigerant R-22 charge through an undetermined cause.

Testing Method. There are two acceptable methods for leak testing the refrigeration system.

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