Table of Contents

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Service
Manual
Multi-Split Type Air Conditioners
MKS-T, MKB-T Series
SiSG121917E
[Applied Models]
 Inverter Multi : Cooling Only

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Table of Contents
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Summarization of Contents

Part 1 General Information
1. Applicable Models
Lists all compatible indoor and outdoor unit models for the series.
2. Functions
Provides a comprehensive list of functions for indoor and outdoor units.
Part 2 Specifications
1. Indoor Unit
Detailed specifications for various indoor unit types, including dimensions, airflow, and sound pressure.
2. Outdoor Unit
Detailed specifications for outdoor units, including capacity, refrigerant, and dimensions.
Part 3 Printed Circuit Board Connector Wiring Diagram
1. Indoor Unit
Wiring diagrams and connector details for various indoor units.
2. Wireless Remote Controller Receiver
Wiring diagram for the wireless remote controller receiver.
3. Wired Remote Controller
Wiring diagram for the wired remote controller.
4. Outdoor Unit
Wiring diagrams and connector details for outdoor units.
5. Adaptor
Wiring details for optional adapters like Wireless LAN.
Part 4 Functions and Control
1. Wall Mounted and LSP Duct Type Functions
Explains various functions like temperature control, fan speed, and timers for specific indoor unit types.
2. MSP Duct Type Functions
Details functions specific to MSP Duct type indoor units, like drain pump control.
3. Thermistor Functions
Describes the role and function of various thermistors in the system.
4. Control Specification
Outlines control specifications, including mode hierarchy, frequency control, and protection functions.
Part 5 Remote Controller
1. Applicable Remote Controller
Lists which remote controllers are applicable to different series of air conditioners.
2. ARC466A19
Detailed explanation of the ARC466A19 remote controller's functions and buttons.
3. ARC433B76
Detailed explanation of the ARC433B76 remote controller's functions and buttons.
4. BRC086A22
Explanation of the BRC086A22 remote controller's buttons and display.
5. BRC1E63
Description of the BRC1E63 wired remote controller's buttons and LCD.
Part 6 Service Diagnosis
1. General Problem Symptoms and Check Items
A guide to common symptoms and initial checks for troubleshooting.
2. Troubleshooting with LED
Explains how to diagnose issues using LED indicators on indoor and outdoor units.
3. Service Diagnosis
Methods for diagnosing issues using remote controller error codes.
4. Code Indication on Remote Controller
Lists error codes displayed on remote controllers for indoor units.
5. Troubleshooting for Wall Mounted and LSP Duct Type Indoor Unit
Detailed troubleshooting steps for abnormalities in wall-mounted and LSP duct indoor units.
6. Troubleshooting for MSP Duct Type Indoor Unit
Detailed troubleshooting steps for abnormalities in MSP duct indoor units.
7. Troubleshooting for Outdoor Unit
Comprehensive troubleshooting guide for outdoor unit issues and error codes.
8. Check
Procedures for checking specific components like thermistors, motors, and PCBs.
Part 7 Trial Operation and Field Settings
1. Pump Down Operation
Steps for conducting pump down operation before relocating or disposing of the unit.
2. Forced Cooling Operation
Procedure for initiating forced cooling operation for testing purposes.
3. Wiring Error Check Function
Function to automatically check and correct wiring errors.
4. Trial Operation
Guides on performing trial operation for indoor and outdoor units.
5. Field Settings
Instructions for configuring indoor unit settings based on installation type and remote controller.
6. Silicone Grease on Power Transistor/Diode Bridge
Guidance on applying silicone grease to heat sinks when replacing PCBs.
Part 8 Appendix
1. Piping Diagrams
Visual representation of refrigerant piping for indoor and outdoor units.
2. Wiring Diagrams
Electrical wiring diagrams for indoor and outdoor units.
3. Operation Limit
Defines the operational limits based on indoor and outdoor temperatures.

Table of Contents