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 TM 55-1905-223-24-18-1
Replace R-20 Mechanical Refrigerator - Refrigeration Condenser.
a. Removal, b. Replacement.
This task covers:
INITIAL SETUP
Equipment Condition
Tools
Electrical power turned OFF at galley
Tool kit, general mechanic's,
240V power panel. Switch tagged "Out
of Service - Do Not Operate."
T o o l kit, electrician's,
T o o l kit, refrigeration and
a i r conditioning,
Materials/Parts
Refrigerator condenser
P/N AE4430AC
Warning tags, Item 1,
Appendix C
Refrigerant R-12, Item 38,
Appendix C
Empty clean refrigerant container,
Item 39, Appendix C
REMOVAL
a.
Remove grill from cabinet by lifting up and pulling out at bottom of unit.
Remove mount bolt at center front of base.
b.
Slide condenser unit and base (1) out of cabinet.
c.
CAUTION
Ensure gauge manifold handwheels are shut before
attaching hoselines to system.
Remove protective caps and attach gauge manifold hoselines to respective
d.
suction and discharge (high pressure) service valves connections.
Attach common middle hoseline to empty steel R-12 storage cylinder.
e.
2-329
Change 1
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