Carrier 38GRQB12-3 Service Manual Manual pdf 9 page image
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Carrier 38GRQB12-3 Service Manual

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Contents
  1. MODEL / SERIAL NUMBER NOMENCLATURE
  2. STANDARD FEATURES AND ACCESSORIES
  3. SPECIFICATIONS
  4. DIMENSIONS
  5. CLEARANCES
  6. WIRING
  7. WIRING DIAGRAMS
  8. REFRIGERATION SYSTEM DIAGRAM
  9. REFRIGERANT LINES
  10. CONTROL SYSTEM
  11. SEQUENCE OF OPERATION
  12. heating mode
  13. forced operation function
  14. TROUBLESHOOTING
  15. troubleshooting for main malfunction
  16. troubleshooting for normal malfunction
  17. exploded view and parts list
  18. removal procedure
  19. outdoor unit removal procedure
  20. removal procedure of outdoor unit
Carrier 38GRQB12-3 Service Manual Manual pdf 9 page image
9WIRING DIAGRAMSSymbol Symbol Color Symbol Symbol Color Symbol NameWH White GN Green CAP Jumper CapYE Yellow BN Brown COMP CompressorRD Red BU Blue Grounding wireYEGN Yellow/Green BK Black / /VT Violet OG Orange / /NOTE: Jumper cap is used to determine fan speed and the swing angle of the horizontal louver of this model.Indoor UnitFig. 10 – Indoor unit
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This manual is suitable for:
38GRQB09-338GRQB12-338GRQB18-340GRQB09B-340GRQB09H-340GRQB12B-340GRQB12H-340GRQB18B-340GRQB18H-3
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