Daikin FTXR18WVJUW9 User Manual

[Applied Models]

Inverter Pair : Heat Pump
Multi-Split Type Air Conditioners
2/3/4/5MXS-W, 2/3/4MXL-W, 2/3/4MXLH-W Series
Service
Manual
SiUS122226E

Daikin FTXR18WVJUW9 Specifications

General

Brand	Daikin
Model	FTXR18WVJUW9
Category	Air Conditioner
Language	English

Summary

Introduction

Safety Cautions

Crucial safety guidelines for repair work and user interaction.

Part 3 Printed Circuit Board Connector Wiring Diagram

Indoor Unit Wiring Diagrams

Wiring details for various indoor unit types.

Wired Remote Controller

Outdoor Unit Wiring Diagrams

Part 4 Functions and Control

Functions for Wall Mounted / Floor Standing Type

Functions for Duct Concealed / Ceiling Cassette Type

Control Specification

Part 5 Remote Controller

ARC452A21 Remote Controller Details

BRC1E73 Wired Remote Controller Details

Details and operation of BRC1E73 wired remote.

Wireless Remote Controller Details

Part 6 Service Diagnosis

General Problem Symptoms and Check Items

Lists common issues and initial checks.

Troubleshooting with LED Indicators

Diagnosing issues using LED indicators.

Service Diagnosis Methods

Procedures for diagnosing system faults.

Code Indication on Remote Controller

Troubleshooting for Wall Mounted/Floor Standing Type

Specific troubleshooting steps for this unit type.

Troubleshooting for Duct Concealed/Ceiling Cassette Type

Specific troubleshooting steps for cassette units.

Troubleshooting for Outdoor Unit

Specific troubleshooting steps for outdoor units.

Component Checks

Part 7 Trial Operation and Field Settings

Pump Down Operation

Forced Cooling Operation

Wiring Error Check Function

Trial Operation

Performing operational checks after installation.

Field Settings

Silicone Grease Application