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ARMY TM 9-4210-381-14
NAVY EE-000-CA-MMA-010/7053-AC
AIR FORCE TO 35E9-136-31
5-39.
MANUAL VALVE (BYPASS).
This task covers:
Inspection
Removal
Installation
INITIAL SETUP:
Tools
Tool kit, service, refrigeration unit (Item 1, Appendix B)
Personnel: 1
Equipment Conditions:
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.
1.
Disconnect air conditioner input power at source.
2.
Swing open control box assembly (para 4-45).
INSPECTION
1.
Inspect for evidence of leaks, damaged lines, and loose or missing mounting hardware. Replace if inspection
fails (see Figure 5-28).
2.
If a leak is suspected or indicated, test per paragraph 5-15.
REMOVAL
1.
Pump down refrigerant system (para 5-21).
2.
Remove valve protective cap (1).
3.
Debraze tubing (3) at joints (para 5-14).
4.
Remove valve (2).
INSTALLATION
1.
Position valve (2) in unit.
2.
Braze tubing (3) at joints (para 5-14).
3.
Open valve for single unit configuration or close valve for dual unit configuration.
4.
Install valve protective cap (1).
5.
Leak test all newly connected joints and those in the repair area (para 5-15).
FOLLOW ON PROCEDURE
1.
Close control box (para 4-45).
2.
Perform start up after repairs (para 5-22).
5-86
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