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DIAGNOSING COMPRESSOR MOTOR BURNOUT
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TM-5-4120-375-14 Air Conditioner Horizontal Compact 18 000 BTU 208 Volt 3 Phase 50/60 Hertz NSN
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INSTALLATION - TM-5-4120-375-14_259
TM5-4120-375-14 COMPRESSOR (CONT.) LOCATION/ITEM ACTION REMARKS TEST 9. CLEANING  OUT  THE  REFRIGERATION  SYSTEM  AFTER  BURNOUT  (CONT.) NOTE An unused filter-drier or other suitable medium may be used as the filter. d. Fill  reservoir  with  fluorocarbon  refrigerant,  (Item  10,  table  D-1) and start the pump. Continue  filling  the  reservoir  with  refrigerant, until it begins to pour out of the return line. Continue  flushing  for at least 15 e. Reverse the medium,  and minutes. pump  connections,  replace  the  filter  with  a  new  filtering back-flush  the  system  for  an  additional  15  minutes. f. Remove the pump, reservoir,   filter  and  filter-drier  jumper. Place  an  empty  container  below  the  compressor  connection,  and  connect a cylinder of dry nitrogen (Item 8, table D-1) to each filter-drier connection in turn. Blow down each leg of the system at 50 psig (3.5 kg/cm 2) for at least 30 seconds. g. Disassemble both expansion valves and re-install the valve cages. In- stall new gaskets,   and  assemble  the  valves,  making  sure  that  projections on valve cages fit in notches in valve bodies. h. Disconnect  the  dry  nitrogen  cylinder,  and  immediately  install  a  new filter-drier, making sure that the direction of flow arrow points up. Cap or plug compressor connections if compressor is not to be installed immediately. i. Replace  compressor  in  accordance  with  paragraph  5-35. 5-90

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