Daikin FTXR12TVJUS User Manual

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

Daikin FTXR12TVJUS Specifications

General

Brand	Daikin
Model	FTXR12TVJUS
Category	Air Conditioner
Language	English

Summary

Introduction

1. Safety Cautions

Essential safety guidelines for handling and operating the equipment.

Part 1 General Information

1. Applicable Models

Lists all models covered by this service manual.

2. Functions

Part 2 Specifications

1. Specifications

Provides detailed technical specifications for the units.

Part 3 Printed Circuit Board Connector Wiring Diagram

1. Indoor Unit

Wiring diagrams for various indoor unit models.

Part 4 Functions and Control

1. Common Functions

2. RA Indoor Unit Functions

3. SA Indoor Unit Functions

4. Control Specification

Technical details on system control mechanisms and logic.

Part 5 Remote Controller

1. Applicable Remote Controller

Part 6 Service Diagnosis

1. General Problem Symptoms and Check Items

Common issues and initial checks for troubleshooting.

2. Troubleshooting with LED

Troubleshooting based on indoor and outdoor unit LED indicators.

3. Service Diagnosis

Step-by-step diagnostic procedures for remote controllers.

4. Code Indication on Remote Controller

Error codes displayed on remote controllers and their meanings.

5. Troubleshooting for RA Indoor Unit

Detailed troubleshooting for RA indoor unit specific issues.

6. Troubleshooting for SA Indoor Unit

Detailed troubleshooting for SA indoor unit specific issues.

7. Troubleshooting for Outdoor Unit

Detailed troubleshooting for outdoor unit specific issues.

8. Check

Part 7 Trial Operation and Field Settings

1. Pump Down Operation

2. Forced Cooling Operation

3. Wiring Error Check Function

4. Trial Operation

5. Field Settings