Table of Contents

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Service
Manual
Inverter Pair
Wall Mounted Type
B Series
[Applied Models]
Inverter Pair : Cooling Only
Inverter Pair : Heat Pump
SiBE04-302

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Table of Contents
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Summarization of Contents

Part 1 List of Function
1. Functions
Lists and describes all available functions for cooling and heat pump modes.
Part 2 Specifications
1. Specifications
Provides detailed technical specifications for indoor and outdoor units for cooling and heating.
Part 3 Printed Circuit Board Connector Wiring Diagram
1. Printed Circuit Board Connector Wiring Diagram
Illustrates PCB connector layouts and designations for indoor and outdoor units.
Part 4 Function and Control
1. Main Functions
Explains primary functions like inverter principle, auto-swing, and fan speed control.
2. Function of Main Structural Parts
Describes the role of key components like compressors and thermistors in system operation.
3. Control Specification
Details system control logic, mode hierarchy, and frequency adjustment mechanisms.
Part 5 System Configuration
1. System Configuration
Guides users on proper operation and handling of the air conditioner post-installation.
2. Instruction (In case of FTK(X)S 25/35 BVMB)
Covers essential safety precautions and specific instructions for safe operation.
Part 6 Service Diagnosis
1. Caution for Diagnosis
Explains error detection methods using operation lamps and LED indicators.
2. Problem Symptoms and Measures
Lists common operational problems and suggests initial checks or remedies.
3. Service Check Function
Details how to access and use the unit's built-in service check function.
4. Troubleshooting
Provides a comprehensive list of error codes, their meanings, and troubleshooting steps.
Part 7 Removal Procedure
1. Indoor Unit
Step-by-step guide for safely removing and disassembling indoor unit components.
2. Outdoor Unit
Step-by-step guide for safely removing and disassembling outdoor unit components.
Part 8 Others
1. Others
Explains trial operation procedures and jumper settings for system configuration.
Part 9 Appendix
1. Piping Diagrams
Illustrates refrigerant piping connections for various indoor and outdoor unit models.
2. Wiring Diagrams
Provides detailed wiring diagrams for indoor and outdoor unit electrical connections.

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