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TECHNICAL DATA
& SERVICE MANUAL
ECOWALL 9000 IU + ECOWALL 9000 OU
UNIT MODELS :
ECOWALL 12000 IU + ECOWALL 12000 OU
SPLIT SYSTEM AIR CONDITIONER
June
8

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Table of Contents
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Summarization of Contents

Part I : Technical Information
1. Summary
Overview of unit models and key components including indoor and outdoor units, and remote controller.
2. Specifications
Detailed technical data and parameters for the ECOWALL 9000 IU/OU and 12000 IU/OU models.
2.1 Specification Sheet
Comprehensive table of technical specifications for both indoor and outdoor units.
2.2 Operation Characteristic Curve
Graphical representation of compressor speed versus current for cooling and heating modes.
2.3 Capacity Variation Ratio According to Temperature
Charts showing how cooling and heating capacity ratios change with ambient temperature.
2.4 Cooling and Heating Data Sheet in Rated Frequency
Performance data for cooling and heating modes under rated frequency conditions.
2.5 Noise Curve
Graphs illustrating indoor and outdoor unit noise levels based on compressor frequency.
3. Outline Dimension Diagram
Detailed drawings showing the physical dimensions of the indoor and outdoor units.
3.1 Indoor Unit
Dimensional specifications and diagrams for the indoor unit.
3.2 Outdoor Unit
Dimensional specifications and diagrams for the outdoor unit.
4. Refrigerant System Diagram
Schematic illustration of the refrigerant flow and components in the cooling and heating system.
5. Electrical Part
Information regarding the electrical components and diagrams of the air conditioner.
5.1 Wiring Diagram
Diagrams detailing the electrical wiring for the indoor and outdoor units.
5.2 PCB Printed Diagram
Layouts of the printed circuit boards for the indoor unit.
6. Function and Control
Explanation of the air conditioner's operational functions and control features.
6.1 Remote Controller Introduction
Guide to the buttons and icons on the remote controller for unit operation.
6.2 Brief Description of Modes and Functions
Detailed descriptions of the various operating modes and special functions available.
Safety Precautions
Warnings
Critical safety warnings for installation, relocation, and general unit handling.
Safety Precautions for Refrigerant
Specific safety guidelines and warnings concerning the use and handling of refrigerants.
Part II : Installation and Maintenance
7. Notes for Installation and Maintenance
Important safety and operational notes to follow before and during installation and maintenance.
Electrical Safety Precautions
Essential safety measures for all electrical connections and work.
Installation Safety Precautions
Key safety guidelines to ensure proper and secure installation of the unit.
Refrigerant Safety Precautions
Critical safety information related to handling refrigerants during installation and maintenance.
8. Installation
Comprehensive guide covering the installation process for the air conditioner system.
8.1 Installation Dimension Diagram
Diagrams illustrating required clearances and dimensions for unit placement.
8.2 Installation Parts-Checking
A checklist of all necessary parts and accessories for installation.
8.3 Selection of Installation Location
Guidelines for choosing suitable and safe locations for indoor and outdoor units.
8.4 Requirements for electric connection
Instructions and safety requirements for making electrical connections.
8.5 Installation of Indoor Unit
Step-by-step instructions for the correct installation of the indoor unit.
8.6 Installation of Outdoor Unit
Step-by-step instructions for the correct installation of the outdoor unit.
8.7 Vacuum Pumping and Leak Detection
Procedure for removing air and checking for refrigerant leaks after installation.
8.8 Check after Installation and Test operation
Final inspection checklist and procedure for testing the unit's operation.
9. Maintenance
Procedures and guidelines for maintaining the air conditioner.
9.1 Error Code List
A list of error codes displayed by the unit and their corresponding possible causes.
9.2 Procedure of Troubleshooting
Detailed troubleshooting flowcharts for various common malfunctions.
9.3 Maintenance method for normal malfunction
Methods for addressing common issues that occur during normal operation.
10. Removal Procedure
Step-by-step instructions for safely removing the indoor and outdoor units.
10.1 Removal Procedure of Indoor Unit
Detailed steps for the disassembly and removal of the indoor unit.
10.2 Removal Procedure of Outdoor Unit
Detailed steps for the disassembly and removal of the outdoor unit.
Appendix
Appendix 1: Reference Sheet of Celsius and Fahrenheit
Conversion table for temperature readings between Celsius and Fahrenheit.
Appendix 2: Configuration of Connection Pipe
Information on connection pipe lengths, diameters, and additional refrigerant requirements.
Appendix 3: Pipe Expanding Method
Detailed steps for proper pipe expansion to ensure leak-free connections.
Appendix 4: List of Resistance for Temperature Sensor
Tables providing resistance values for temperature sensors at various temperatures.

Table of Contents