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ARMY TM 9-4120-381-14
NAVY EE-000-CA-MMA-010/7053-AC
AIR FORCE TO 35E9-136-31
5-29.
SERVICE VALVES (HEAD AND HOT GAS 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.
Remove right front condenser panel (para 4-28).
INSPECTION
1.
Check that caps are in place and that threaded connection ends are not damaged. Replace if missing or damaged
(see Figure 5-18).
2.
If a leak is suspected or indicated, test per paragraph 5-15.
REMOVAL
1.
Discharge refrigerant-system (para 5-12).
2.
Receive protective caps (3).
3.
Debraze tubing (1) at joints (para 5-14).
4.
Remove valve (2).
INSTALLATION
1.
Place valve (2) into mounting position.
2.
Braze tubing (1) at joints (para 5-14).
3.
Install protective caps (3).
4.
Leak test all newly connected joints and those in the repair area (para 5-15).
5.
Backseat (counterclockwise) both service valves (head and hotgass bypass).
5-61
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