TM 5-4220-227-14
6-12.
Condensing Unit Hermetic.
This task covers:
a.
Replace
b.
Repair
INITIAL SETUP
Tools
Materials/Parts
General Mechanic's Tool Kit
Cloth, Lint-Free (Item 6, Appendix E)
(NSN 5180-00-177-7033)
Distilled Water (Item 9, Appendix E)
Recovery and Recycling Unit, Refrigerant
Detergent, Nonionic (Item 8, Appendix E)
Tape, Teflon (Item 21, Appendix E)
Materials/Parts
Refrigerant-22 (Item 23, Appendix E)
Condensing Unit Hermetic
Equipment Condition
Band, Rubber (Item 4, Appendix E)
Bags, Plastic (Item 3, Appendix E)
Heater/chiller module removed (para. 4-28).
a.
Replace. (figure 6-19)
WARNING
Death or serious injury may result if personnel fail to observe safety precautions when handling liquid
refrigerant. Use great care to avoid contact with liquid refrigerant or refrigerant gas being discharged
under pressure. Sudden and irreversible tissue damage can result from freezing. Wear thermal protective
gloves and a face protector or goggles in any situation where skin-eye-contact is possible.
Prevent contact of refrigerant gas with flame or hot surfaces. Heat causes the refrigerant to break down
and form carbonyl chloride (phosgene), a highly poisonous and corrosive gas.
NOTE
In accordance with Environmental Protection Agency regulations refrigerants cannot be discharged into
the atmosphere. A refrigerant recovery and recycling unit must be used whenever discharging the
refrigerant system.
Operation of the recovery/recycling unit must be by AUTHORIZED PERSONNEL ONLY.
(1)
Remove 14 screws (1) and remove cover (2).
(2)
Remove six nuts (3), washers (4), and bolts (5).
(3)
Loosen fitting nut (6) and separate from line (7).
(4)
Loosen fitting (8) and separate from line (7).
6-42
