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Page Title: 5-12. DISCHARGING REFRIGERATION SYSTEM
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ARMY TM 9-4120-381-14 NAVY EE-000-CA-MMA-010/7053-AC AIR FORCE TO 35E9-136-31 5-12. DISCHARGING REFRIGERATION SYSTEM. This task covers: Service INITIAL SETUP: Tools: Tool kit, service, refrigeration unit (Item 1, Appendix B) Recovery and Recycling Unit, Refrigeration (Item 26, Appendix B) Pail, utility (Appendix C) Gloves, chemical (Appendix C) Goggles, industrial (Appendix C) Equipment Condition: Service manifold installed (para 5-11) 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. SERVICE WARNING Death  or  serious  injury  may  result  if  personnel  fail  to  observe  safety  precautions. 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. CAUTION Do not permit the oil to escape from the unit.  If oil is escaping, close the valve(s) slightly to prevent possible oil loss. Do not permit the refrigerant to escape fast enough to form ice or frost on either the lines or the valve(s) to prevent possible damage to system. 5-20

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