Table of Contents

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Installer reference guide
Split system air conditioners
FDXM25F3V1B
FDXM35F3V1B
FDXM50F3V1B
FDXM60F3V1B
FDXM25F3V1B9
FDXM35F3V1B9
Installer reference guide
FDXM50F3V1B9
English
Split system air conditioners
FDXM60F3V1B9

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Table of Contents
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Summarization of Contents

General Safety Precautions
About the Documentation
Information about the documentation provided with the unit.
For the Installer
Guidelines and precautions specifically for installers.
Installer General Precautions
General safety advice for installers regarding handling and unit safety.
Installation Site Requirements
Requirements for selecting a suitable installation location for the unit.
Refrigerant Handling and Safety
Precautions and guidelines for handling refrigerant during installation.
Brine Handling and Safety
Precautions and guidelines for handling brine.
Water Handling and Safety
Precautions and guidelines for water handling.
Electrical Safety Precautions
Safety measures for electrical connections and wiring.
About the Documentation
About This Document
Details about the content and purpose of this document.
Installer Reference Guide Overview
An overview of the installer reference guide's structure and content.
About the Box
Box Contents Overview
Information about checking the unit and its packaging upon delivery.
Indoor Unit Unpacking and Handling
Instructions for unpacking, handling, and removing accessories from the indoor unit.
About Units and Options
Units and Options Overview
Information on combining outdoor and indoor units and available options.
System Component Layout
Diagram and explanation of the indoor and outdoor unit system components.
Combining Units and Options
Details on combining units and selecting possible options for the indoor unit.
Preparation
Preparation Overview
Overview of tasks to perform before installation, including site, piping, and wiring.
Preparing the Installation Site
Guidelines for preparing the installation site, including space and location requirements.
Preparing Refrigerant Piping
Requirements and guidelines for preparing refrigerant piping, including diameter and material.
Preparing Electrical Wiring
Guidelines for preparing electrical wiring, including safety and connection methods.
Installation
Installation Overview and Workflow
Overview of the installation process and typical workflow stages.
Mounting the Indoor Unit
Precautions and guidelines for mounting the indoor unit, including ceiling opening sizes.
Installing Ducting
Guidelines for installing ducting for air inlet and outlet, including insulation and air leaks.
Installing Drain Piping
General guidelines for installing drain piping, including pump, length, size, and slope.
Connecting Drain Piping to Indoor Unit
Steps for connecting the drain hose to the indoor unit and checking for leaks.
Connecting Refrigerant Piping
Process for connecting refrigerant piping to the outdoor and indoor units, including precautions.
Pipe Bending Guidelines
Guidelines for bending refrigerant pipes, emphasizing gentle curves and radius.
Flaring Pipe Ends
Procedure for flaring pipe ends, including tool usage and quality checks.
Connecting Refrigerant Piping to Indoor Unit
Specific instructions for connecting refrigerant piping to the indoor unit components.
Connecting Electrical Wiring
Steps and precautions for connecting electrical wiring to the indoor and outdoor units.
Connecting Electrical Wiring on Indoor Unit
Detailed steps for connecting power and transmission wiring on the indoor unit.
Configuration
Field Settings
Instructions for making field settings, such as static pressure and discharge grille.
Commissioning
Checklist Before Commissioning
A checklist of essential items to verify before powering up the unit.
Performing a Test Run
Step-by-step guide for performing a test run using the user interface.
Error Codes
Error Codes During Test Run
List of error codes that may appear during the test run and their possible causes.
Hand-over to the User
User Hand-over Procedures
Ensuring the user has documentation, understands operation, and maintenance.
Disposal
System Disposal Guidelines
Instructions and warnings regarding the proper and legal disposal of the system.
Technical Data
Accessing Technical Data
Information on where to find the latest technical data for the product.
Glossary
Wiring Diagram Legend
Explanation of symbols and terms used in the wiring diagrams.
Glossary of Terms
Definitions of technical terms and abbreviations used in the manual.

Table of Contents