Daikin FTXR09TVJUW - User Manual

[Applied Models]

Inverter Pair : Heat Pump
Multi-Split Type Air Conditioners
5MXS-T, 4MXL-T Series
Service
Manual
SiUS121827E

Summary

Introduction

Safety Cautions

Essential safety precautions for conducting repair work and operating the equipment.

Part 2 Specifications

Specifications

Part 3 Printed Circuit Board Connector Wiring Diagram

Indoor Unit PCB Connector Diagrams

Illustrates connector layouts for various indoor unit PCB models.

Outdoor Unit Main PCB

Diagram of the main PCB for outdoor units, showing connector and component locations.

Part 4 Functions and Control

RA Indoor Unit Functions

SA Indoor Unit Functions

Control Specification

Specifies control logic for thermistors, modes, frequency, and protection functions.

Part 5 Remote Controller

BRC1 E73 Wired Remote Controller

Part 6 Service Diagnosis

General Problem Symptoms and Check Items

Lists common symptoms, check items, details, and reference pages for troubleshooting.

Troubleshooting with LED Indicators

Guides troubleshooting based on LED indications for indoor and outdoor units.

Service Diagnosis Methods

Code Indication on Remote Controller

Lists error codes and descriptions for RA Indoor Unit, SA Indoor Unit, and Outdoor Unit.

Troubleshooting RA Indoor Unit

Provides troubleshooting steps for RA indoor unit abnormalities like PCB, thermistor, and fan motor.

Troubleshooting SA Indoor Unit

Offers troubleshooting steps for SA indoor unit issues like PCB, drain system, and fan motor.

Troubleshooting Outdoor Unit

Covers troubleshooting for outdoor unit issues like refrigerant shortage and voltage detection.

Part 7 Trial Operation and Field Settings

Pump Down Operation

Forced Cooling Operation

Wiring Error Check Function

Explains how to use the wiring error check function via the service monitor PCB.

Trial Operation

Guides trial operation for RA and SA indoor units to ensure all functions are working.

Field Settings

Daikin FTXR09TVJUW Specifications