TM 9-4120-395-14&P
5-10. CHARGING REFRIGERATION SYSTEM.
This task covers:
Service
INITIAL SETUP:
Tools:
Tool kit, service, refrigeration unit
Rubber gloves
Safety goggles
Materials:
Refrigerant-22 cylinder (Appendix F, Item 8)
Rags (Appendix F, Item 7)
Equipment Condition:
Power off at power source.
Both front door assemblies removed. See para 4-17.
General Safety Instructions:
HIGH VOLTAGE is used in the operation of this equipment. DEATH ON CONTACT
or severe injury may result if personnel fall to observe safety precautions.
Death or serious injury may result if personnel fail to observe safety precautions.
Use great care to avoid contact with liquid 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 break down and form carbonyl chloride
(phosgene), a highly poisonous and corrosive gas.
CAUTION
Application of liquid refrigerant into the low pressure (suction) service valve may cause system failure.
NOTE
The system must be evacuated before charging. Use only refrigerant-22 to charge the unit.
Whenever available, use recycled refrigerant for charging the refrigeration system.
5-15
