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INSTALLATION AND
OPERATION MANUAL
System air conditioners
FXSQ15A2VEB
FXSQ20A2VEB
FXSQ25A2VEB
FXSQ32A2VEB
FXSQ40A2VEB
FXSQ50A2VEB
FXSQ63A2VEB
FXSQ80A2VEB
FXSQ100A2VEB
FXSQ125A2VEB
FXSQ140A2VEB

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Table of Contents
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Summarization of Contents

Installation and Site Preparation
Before Installation
General preparatory steps before starting installation.
Selecting Installation Site
Criteria and guidelines for choosing the unit's location.
Refrigerant and Safety Information
Critical safety and handling information for refrigerants and general precautions.
Preparations Before Installation
Specific tasks to prepare the installation area.
Unit Installation Procedures
Indoor Unit Installation
Step-by-step guide for mounting the indoor unit.
Duct Installation
Instructions for connecting air ducts to the unit.
Refrigerant Piping Work
Procedures for connecting refrigerant lines.
Drain Piping Work
Steps for connecting the condensate drain.
Electric Wiring Work
Connecting power and control wiring to the unit.
System Configuration and Control
Wiring and Remote Controller Setup
Connecting and configuring remote controllers.
Computerised Control Functions
Advanced control functions.
Field Setting Configuration
Configuring system parameters and options.
External Static Pressure Settings
Adjusting airflow performance based on duct resistance.
Remote Controller Operation
How to use the remote controller for unit management.
Testing, Maintenance, and Reference
Test Operation Procedure
Verifying system functionality after installation.
Maintenance Procedures
Routine upkeep and cleaning instructions.
Disposal Requirements
Procedures for safe unit disposal.
Wiring Diagram and Specifications
Schematic and technical details.

Table of Contents