SOLENOID VALVE AND HOT GAS BYPASS VALVE MAINTENANCE

TM 9-4120-430-14

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DIRECT SUPPORT MAINTENANCE

AIR CONDITIONER, COMPACT, HORIZONTAL

SOLENOID VALVE AND HOT GAS BYPASS VALVE MAINTENANCE

TEST, REMOVAL, INSTALLATION

INITIAL SETUP:

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)

Recovery and Recycle Unit, Refrigerant (Item 5, WP 0067 00)

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

Test Equipment

Electronic refrigerant gas leak detector (See TM 9-4940-509-14&P)

Materials/Parts

Nitrogen (Item 4, WP 0069 00)

Brazing alloy (Item 5 or 6, Table 1, WP 0069 00)

Brazing flux (Item 7, Table 1, WP 0069 00)

References

WP 0067 00 (MAC)

TM 9-4940-509-14&P

Personnel Required

One

Equipment Condition

Mode selector switch in OFF position.

Main power source is disconnected

Top cover removed (WP 0018 00)

Refrigerant system discharged (WP 0044 00)

System purged with nitrogen (WP 0050 00)

Related tube connections debrazed (WP 0046 00)

Special Environmental Condition

WARNING

REFRIGERANT-22 (R-22)

Unit contains R-22, a chemical substance which harms public health and the

environment by destroying ozone in the upper atmosphere, and that the equipment is

to be serviced by qualified personnel only.

Operation of the recovery/recycling unit must be by AUTHORIZED PERSONNEL

ONLY.

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