Document Outline

• SM831148-02_08
  • TECHNICAL DATA & SERVICE MANUAL
  • Important
  • Contents
  • 1.SPECIFICAITONS
    • 1-1.Unit Specifications
    • 1-2.Major Component Specifications
    • 1-3.Other Component Specifications
    • 1-4.Dimensional data 1/2
    • 1-4.Dimensional data 2/2
    • 1-5.Refrigerant Flow Diagram
    • 1-6.Operating Range
    • 1-7.Heating Capacity
    • 1-8.Noise Criterion Curves 1/2
    • 1-8.Noise Criterion Curves 2/2
    • 1-9.Increasing the Fan Speed
    • 1-10.Air throw distance chart
    • 1-11.Installation Instructions
    • 1-12.Electrical Wiring
    • 1-13.Using Wireless Remote Controller with Wall-mounted Indoor Unit
  • 2.PROCESSES AND FUNCTIONS
    • 2-1.Room Temperature Control
    • 2-2.Cold Draft Prevention (Heating Cycle)
    • 2-3.Automatic Fan Speed (Indoor Unit)
    • 2-4.Control Functions
    • 2-5.Outdoor Unit Control PCB
    • 2-6.Outdoor Unit Control PCB (CR-CH4272R)
  • 3.ELECTRICAL DATA
    • 3-1.Indoor Units 1/2
    • 3-1.Indoor Units 2/2
    • 3-2.Outdoor Units
  • 4.SERVICE PROCEDURES
    • 4-1.Meaning of Alarm Meassages
    • 4-2.Symptoms and Parts to Inspect
    • 4-3.Details of Alarm Meassages
  • 5.OUTDOOR UNIT MAINTENANCE REMOTE CONTROL
    • 5-1.Overview
    • 5-2.Functions
    • 5-3.Normal Display Operations and Functions
    • 5-4.Monitoring Operations: Display of Indoor Unit and Outdoor Unit Sensor Temperatures
    • 5-5.Monitoring the Outdoor Unit Alarm History: Display of Outdoor Unit Alarm History
    • 5-6.Setting Modes: Setting the Outdoor Unit EEPROM
  • 6.TEST RUN
    • 6-1.Preparing for Test Run
    • 6-2.Caution
    • 6-3.Test Run Procedure
    • 6-4.Items to Check Before the Test Run
    • 6-5.Test Run Using the Remote Controller
    • 6-6.Precautions
    • 6-7.Table of Self-Diagnostic Functions and Corrections (X,T,U,K Type)
    • 6-8.Examples of Wiring Diagrams
• SM831148-02_18
  • TECHNICAL DATA & SERVICE MANUAL
  • 1.SPECIFICAITONS
    • 1-1.Unit Specifications
    • 1-2.Major Component Specifications
    • 1-3.Other Component Specifications
    • 1-4.Dimensional data 1/2
    • 1-4.Dimensional data 2/2
• SM831148-02_28
  • TECHNICAL DATA & SERVICE MANUAL
    • 1-4.Dimensional data 1/2
    • 1-4.Dimensional data 2/2
    • 1-5.Refrigerant Flow Diagram
    • 1-6.Operating Range
    • 1-7.Heating Capacity
    • 1-8.Noise Criterion Curves 1/2
    • 1-8.Noise Criterion Curves 2/2
• SM831148-02_38
  • TECHNICAL DATA & SERVICE MANUAL
    • 1-8.Noise Criterion Curves 1/2
    • 1-8.Noise Criterion Curves 2/2
    • 1-9.Increasing the Fan Speed
    • 1-10.Air throw distance chart
    • 1-11.Installation Instructions
• SM831148-02_48
  • TECHNICAL DATA & SERVICE MANUAL
    • 1-12.Electrical Wiring
    • 1-13.Using Wireless Remote Controller with Wall-mounted Indoor Unit
  • 2.PROCESSES AND FUNCTIONS
    • 2-1.Room Temperature Control
    • 2-2.Cold Draft Prevention (Heating Cycle)
    • 2-3.Automatic Fan Speed (Indoor Unit)
    • 2-4.Control Functions
• SM831148-02_58
  • TECHNICAL DATA & SERVICE MANUAL
    • 2-5.Outdoor Unit Control PCB
    • 2-6.Outdoor Unit Control PCB (CR-CH4272R)
  • 3.ELECTRICAL DATA
    • 3-1.Indoor Units 1/2
    • 3-1.Indoor Units 2/2
• SM831148-02_68
  • TECHNICAL DATA & SERVICE MANUAL
    • 3-1.Indoor Units 1/2
    • 3-1.Indoor Units 2/2
• SM831148-02_78
  • TECHNICAL DATA & SERVICE MANUAL
    • 3-2.Outdoor Units
  • 4.SERVICE PROCEDURES
    • 4-1.Meaning of Alarm Meassages
    • 4-2.Symptoms and Parts to Inspect
    • 4-3.Details of Alarm Meassages
  • 5.OUTDOOR UNIT MAINTENANCE REMOTE CONTROL
    • 5-1.Overview
    • 5-2.Functions
    • 5-3.Normal Display Operations and Functions
• SM831148-02_88
  • TECHNICAL DATA & SERVICE MANUAL
    • 5-4.Monitoring Operations: Display of Indoor Unit and Outdoor Unit Sensor Temperatures
    • 5-5.Monitoring the Outdoor Unit Alarm History: Display of Outdoor Unit Alarm History
    • 5-6.Setting Modes: Setting the Outdoor Unit EEPROM
  • 6.TEST RUN
    • 6-1.Preparing for Test Run
    • 6-2.Caution
    • 6-3.Test Run Procedure
    • 6-4.Items to Check Before the Test Run
    • 6-5.Test Run Using the Remote Controller
    • 6-6.Precautions
    • 6-7.Table of Self-Diagnostic Functions and Corrections (X,T,U,K Type)
    • 6-8.Examples of Wiring Diagrams