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Figure   15.   Damper   Controls,   Removal   And   Installation.
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TM-5-4120-259-15 Air Conditioner Horizontal Compact 9 000 BTU Trane Models Manual
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figure 18.
TM   5-4120-259-15 57.   Evaporator   Fans   and   Motor 58.  Condenser  Fans  and  Motor a.  Removal   and   Installation.   Remove   and a.  Removal   and   Installation.  Remove   and install  the  evaporator  fans  and  motor  as  shown install  the  condenser  fans  and  nmtor  as  shown by   figure   16. by   figure   17. b.  Testing.   Test   the   motor   for   continuity b.   Testing.   Test and   shorts   with   a   multimeter.   Replace   a   de- and   shorts   with   a fective   motor. fective   motor. Section  IX.  ELECTRICAL  SYSTEM the   motor   for   continuity multimeter.  Replace  a  de- 59.   General This   section   contains   the   maintenance   infor- mation   for   the   main   control   box,   rotary   control switch,   thermostat,   junction   box,   circuit   break- er,   motar   contractors,   thermal   delay   relay,   ter- minal   board,   solenoid   valve   coil,   main   power connector,   and   wiring   harnesses. Caution:   All  testing  and  other  work  to  the electrical   system   must   be   done   with   power plug  disconnected. 60.  Control  Box,  Rotary  Control  Switch, and   Thermostat a.  Adjust   thermostat   by   turning   adjusting knob   as   shown   by   figure   18. b.  Remove   and   install   the   control   box,   ro- tary  control  switch,  and  thermostat  as  shown by  figure  18. 61.  Electrical  Junction  Box Remove   and   install   the   electrical   junction box  as  shown  by  figure  19. 62.   Circuit   Breaker a.  Testing.  Use   a   multimeter   and   test   be- tween  terminals  1  and  4,  2  and  5,  and  3  and 6   with   the   circuit   breaker   in   the   ON   position. If  continuity  does  not  exist  in  any  of  the  three test   positions   the   circuit   breaker   is   defective. b.   Removal   and   Installation.   Remove   and install  the  circuit  breaker  as  shown  by  figure 20. 63.  Motor  Contractors  and  Thermal Delay  Switch a.  Testing.  Test   across   each   of   the   three motor   contractors   with   a   multimeter   set   on 26 ohms.   Continuity   should   not   be   inidicated   in any  of  the  test  positions  except  between  ter- minals   4   and   8   of   the   compressor   motor   con- tactor.   If   continuity   does   not   exist   acrow   ter- minals  4  and  8  of  the  compressor  motor  com- tracts,   the   thermal   delay   switch   is   defective and   must   be   replaced.   Check   motor   contactor coil   continuity.   Replace   motor   contactor   if   de- fective. b.   Removal   and   Installation.   Remove   and install   the   contractors   and   relay   as   shown   by figures  20,  21  and  22. c.   Contacts   Replacement.   Replace   the   con- tacts  and  coil  as  shown  by  figures  21  and  22 d.   Thermal   Delay Switch    Adjustment. Make   timing   adjustment   as   shown   by   figure 23. 64.   Terminal   Board Remove   and   install   the   terminal   board   as shown  by  figure  20. 65.   Solenoid   Valve   Coil a.  Testing.  Test   the   solenoid   coil   for   con- tinuity   and   shorts   with   a   multimeter.   Replace defective   coil. b.   Removal   and   Installation.   Remove   and install   the   solenoid   valve   coil   as   shown   by figure   24. 66.  Main  Power  Connector  and  Box Remove   and   install   the   main   power   con- nector  and  box  as  shown  by  figure  25. 67.   Wiring   Harnesses a.  General.  Except  for  connecting  wires  at- tached   to   miscellaneous   components,   the   com- plete   wiring   system   is   composed   of   two   main harnesses.   Each   harness   is   individually   re- placeable.

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