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R32 or R410A
AIR CONDITIONER (MULTI TYPE)
Installation Manual
Indoor Unit
For commercial use
Model name:
Concealed Duct High Static Pressure Type
English

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Table of Contents
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Summarization of Contents

1 Precautions for safety
Protective Gear and Safety Symbols
Guidelines on protective gear and meanings of safety symbols for installation.
Unit Warnings and General Safety
Unit warnings, general safety rules, and recommendations for installation and handling.
3 Selection of installation place
Installation Location Restrictions
Guidelines for selecting an appropriate location, avoiding problematic places.
Installation Space Requirements
Details on the required space for installation and service access.
4 Installation
Hanging Bolt Installation
Instructions for installing hanging bolts for the indoor unit.
Indoor Unit Mounting
Procedures for securely mounting the indoor unit horizontally.
Connecting Ductwork
Guidance on connecting air ducts, including insulation and sealing.
5 Drain piping
Drain Pipe Connection
Instructions for connecting the flexible drain hose to the main unit's drain pipe.
Drainage Check
Procedure to check if water flows out properly and verify no leaks.
6 Duct design
Duct Design Principles
Principles for designing ducts to prevent short circuits and ensure proper airflow.
Duct Arrangement
Guidelines for manufacturing ductwork based on provided dimensions.
7 Refrigerant piping
Pipe Flaring and Connection
Steps for flaring refrigerant pipes and performing secure tightening connections.
Evacuation and Leak Check
Procedures for evacuating air and checking for refrigerant gas leaks.
8 Electrical connection
Power Supply and Wiring Specs
Specifications for power supply wiring and communication wires.
Indoor and Remote Wiring
Instructions for connecting indoor unit wires and remote controller wiring.
9 Applicable controls
Control Setup Procedure
Basic procedure for setting up controls like external static pressure and filter indicators.
Configuration Options
Settings for filter sign, remote controller sensor, heating effect, and group control.
10 Test run
Pre-Test Run Checks
Procedures to perform before turning on power and starting the test run.
Executing Test Run
Steps to execute a test run using the remote controller, including mode selection.
11 Maintenance
Daily Maintenance
Procedure for cleaning air filters every 3 months.
Periodic and Annual Maintenance
Recommendations for periodic cleaning, inspection, and maintenance tasks.
12 Troubleshooting
Troubleshooting History Check
Procedure to check the troubleshooting history and confirm error codes.
Check Codes and Diagnosis
List of check codes, their meanings, and judging devices for diagnosing problems.
14 Notice code
Checking Notice Codes
Procedure to check notice codes displayed for caution or maintenance.
15 Appendix
Work Instructions and Leakage Warnings
Instructions for reusing existing pipes and warnings regarding refrigerant leakage.
Indoor Unit Setup Check
A checklist for confirming indoor unit addresses and settings post-installation.

Table of Contents