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Daikin FTX12NMVJU - Service Manual

Daikin FTX12NMVJU
242 pages
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[Applied Models]
Inverter Pair : Heat Pump
Service
Manual
SiUS091601EA
Inverter Pair
Wall Mounted Type FTX-N/U Series
Floor Standing Type FVXS-V Series
Duct Connected Type FDMQ-R Series

Table of Contents

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Summary

Introduction

Safety Cautions

Important warnings and cautions for safe repair work and operation.

Icons Used

Explanation of standard icons used in the manual for clarity.

Revision History

Records of changes and updates made to the manual.

Part 1 General Information

Applicable Models

Lists all indoor and outdoor unit models covered by this service manual.

Functions

Overview of available functions for different unit series and models.

Part 2 Specifications

Specifications

Detailed technical specifications for indoor and outdoor units.

Part 3 Printed Circuit Board Connector Wiring Diagram

Indoor Unit PCB Diagrams

Wiring diagrams for various indoor unit PCB models.

Outdoor Unit PCB Diagrams

Wiring diagrams for outdoor unit PCB models.

Optional Adaptor Wiring

Wiring details for optional accessories like LAN adapters.

Part 4 Functions and Control

Common Functions

Basic operational functions applicable across multiple models.

Functions for FTX, FVXS Series

Specific functions and operations for FTX and FVXS series units.

Functions for FDMQ Series

Specific functions and operations for FDMQ series units.

Thermistor Functions

Explanation of the role of various thermistors in unit control.

Control Specification

Technical details on the unit's control logic and specifications.

Part 5 Remote Controller

Applicable Remote Controller

List of compatible remote controller models for the units.

ARC466 A21 Remote Controller

Overview and functions of the ARC466A21 remote controller.

ARC480 A8 Remote Controller

Overview and functions of the ARC480A8 remote controller.

BRC082 A43 Wireless Remote Controller

Details of the BRC082A43 wireless remote controller.

BRC1 E73 Wired Remote Controller

Details of the BRC1E73 wired remote controller.

Part 6 Service Diagnosis

General Problem Symptoms and Check Items

Common issues, symptoms, and basic checks for troubleshooting.

Troubleshooting with LED Indicators

Diagnosing issues based on indoor and outdoor unit LED status.

Service Diagnosis Methods

Procedures for diagnosing system faults using remote controllers.

Error Codes and Description

List of error codes, their descriptions, and reference pages.

Troubleshooting for FTX, FVXS Series

Specific troubleshooting steps for FTX and FVXS series units.

Troubleshooting for FDMQ Series

Specific troubleshooting steps for FDMQ series units.

Troubleshooting for Outdoor Unit

Specific troubleshooting steps for outdoor units.

Check Procedures

Detailed checks for various components and systems.

Part 7 Trial Operation and Field Settings

Pump Down Operation

Procedure for safely removing refrigerant before relocation or disposal.

Forced Cooling Operation

How to perform forced cooling operation for specific tests.

Trial Operation

Steps to conduct trial operation to ensure proper function.

Field Settings for FTX, FVXS Series

Configuration settings specific to FTX and FVXS series.

Field Settings for FDMQ Series

Configuration settings specific to FDMQ series.

Field Settings for Outdoor Unit

Outdoor unit specific configuration settings.

Silicone Grease on Power Transistor;Diode Bridge

Proper application of thermal grease during PCB replacement.

Part 8 Appendix

Piping Diagrams

Diagrams showing refrigerant piping connections for indoor units.

Wiring Diagrams

Electrical wiring diagrams for indoor and outdoor units.

Operation Limit

Graphs showing operational limits based on indoor/outdoor temperatures.

Summary

Introduction

Safety Cautions

Important warnings and cautions for safe repair work and operation.

Icons Used

Explanation of standard icons used in the manual for clarity.

Revision History

Records of changes and updates made to the manual.

Part 1 General Information

Applicable Models

Lists all indoor and outdoor unit models covered by this service manual.

Functions

Overview of available functions for different unit series and models.

Part 2 Specifications

Specifications

Detailed technical specifications for indoor and outdoor units.

Part 3 Printed Circuit Board Connector Wiring Diagram

Indoor Unit PCB Diagrams

Wiring diagrams for various indoor unit PCB models.

Outdoor Unit PCB Diagrams

Wiring diagrams for outdoor unit PCB models.

Optional Adaptor Wiring

Wiring details for optional accessories like LAN adapters.

Part 4 Functions and Control

Common Functions

Basic operational functions applicable across multiple models.

Functions for FTX, FVXS Series

Specific functions and operations for FTX and FVXS series units.

Functions for FDMQ Series

Specific functions and operations for FDMQ series units.

Thermistor Functions

Explanation of the role of various thermistors in unit control.

Control Specification

Technical details on the unit's control logic and specifications.

Part 5 Remote Controller

Applicable Remote Controller

List of compatible remote controller models for the units.

ARC466 A21 Remote Controller

Overview and functions of the ARC466A21 remote controller.

ARC480 A8 Remote Controller

Overview and functions of the ARC480A8 remote controller.

BRC082 A43 Wireless Remote Controller

Details of the BRC082A43 wireless remote controller.

BRC1 E73 Wired Remote Controller

Details of the BRC1E73 wired remote controller.

Part 6 Service Diagnosis

General Problem Symptoms and Check Items

Common issues, symptoms, and basic checks for troubleshooting.

Troubleshooting with LED Indicators

Diagnosing issues based on indoor and outdoor unit LED status.

Service Diagnosis Methods

Procedures for diagnosing system faults using remote controllers.

Error Codes and Description

List of error codes, their descriptions, and reference pages.

Troubleshooting for FTX, FVXS Series

Specific troubleshooting steps for FTX and FVXS series units.

Troubleshooting for FDMQ Series

Specific troubleshooting steps for FDMQ series units.

Troubleshooting for Outdoor Unit

Specific troubleshooting steps for outdoor units.

Check Procedures

Detailed checks for various components and systems.

Part 7 Trial Operation and Field Settings

Pump Down Operation

Procedure for safely removing refrigerant before relocation or disposal.

Forced Cooling Operation

How to perform forced cooling operation for specific tests.

Trial Operation

Steps to conduct trial operation to ensure proper function.

Field Settings for FTX, FVXS Series

Configuration settings specific to FTX and FVXS series.

Field Settings for FDMQ Series

Configuration settings specific to FDMQ series.

Field Settings for Outdoor Unit

Outdoor unit specific configuration settings.

Silicone Grease on Power Transistor;Diode Bridge

Proper application of thermal grease during PCB replacement.

Part 8 Appendix

Piping Diagrams

Diagrams showing refrigerant piping connections for indoor units.

Wiring Diagrams

Electrical wiring diagrams for indoor and outdoor units.

Operation Limit

Graphs showing operational limits based on indoor/outdoor temperatures.

Daikin FTX12NMVJU Specifications

General IconGeneral
BrandDaikin
ModelFTX12NMVJU
CategoryAir Conditioner
LanguageEnglish

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