REFRIGERANT SYSTEM SERVICE

TM 9-4120-430-14

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DIRECT SUPPORT MAINTENANCE

AIR CONDITIONER, COMPACT, HORIZONTAL

REFRIGERANT SYSTEM SERVICE - (CHARGING)

Maintenance Level

Direct Support

Tools and Special Tools

Tool Kit, General Mechanics (Item 1, Table 2, WP 0067 00)

Tool Kit, Service, Refrigeration Unit (Item 2, WP 0067 00)

Mask, Air Filtering (Item 29, Table 1, WP 0069 00)

Test Equipment

Charging cylinder or scale

Materials/Parts

Refrigerant-22, R-22 (Item 10, Table 1, WP 0069 00)

References

WP 0067 00 (MAC)

Personnel Required

One

Equipment Condition

Refrigerant system evacuated (WP 0048 00)

Main power source is disconnected

WARNING

Ensure power source is disconnected.

WARNING

Be sure that the manifold hoses are correctly connected.

BLUE Hose = Low Pressure, RED Hose = High Pressure.

CAUTION

Never introduce liquid refrigerant into the low pressure (suction) service valve.

NOTE

After the system has been satisfactorily evacuated, it must be fully charged with R-

22.

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