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Daikin FTXN12KEVJU Service Manual

Daikin FTXN12KEVJU
244 pages
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Service
Manual
Inverter Pair
Wall Mounted Type K-Series
SiUS041111
[Applied Models]
Inverter Pair : Cooling Only
Inverter Pair : Heat Pump

Table of Contents

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Daikin FTXN12KEVJU Specifications

General IconGeneral
Cooling Capacity3.5 kW
Heating Capacity4.0 kW
Seasonal Energy Efficiency Ratio (SEER)6.1
TypeSplit
Power Supply50 Hz
RefrigerantR32

Summary

List of Functions

Functions

Lists various functions available for the air conditioner.

Specifications

Cooling Only Specifications

Technical specifications for cooling-only models, including capacity, dimensions, and electrical data.

Heat Pump Specifications

Technical specifications for heat pump models, including capacity, dimensions, and electrical data.

Printed Circuit Board Connector Wiring Diagram

Indoor Unit Connector Wiring

Details connector and part information for indoor unit PCBs.

Outdoor Unit Connector Wiring

Details connector and part information for outdoor unit PCBs.

Function and Control

Main Functions Overview

Provides an overview of the main functions of the air conditioner system.

Function of Thermistor

Explains the purpose and function of different thermistors used in the system.

Control Specification Details

Details control specifications including mode hierarchy and frequency control.

Operation Manual

System Configuration

Information on handling and operating the air conditioner post-installation.

09/12 Class Operation

Covers remote controller, operation modes, and settings for 09/12 class units.

15/18/24 Class Operation

Covers remote controller, operation modes, and settings for 15/18/24 class units.

Service Diagnosis

Troubleshooting with LED Indicators

Explains troubleshooting based on LED status for indoor and outdoor units.

Problem Symptoms and Measures

Lists common unit symptoms and their corresponding diagnostic measures.

Service Check Function Procedures

Details methods for accessing and utilizing the service check function for diagnosis.

Troubleshooting Error Codes

Provides a comprehensive list of error codes and their associated descriptions.

Component Specific Troubleshooting

Guides on troubleshooting specific components like PCB, motors, and thermistors.

System Level Troubleshooting

Covers troubleshooting for signal errors, voltage issues, and refrigerant shortages.

Component Checks

Provides detailed procedures for checking components like thermistors and valves.

Removal Procedure

Indoor Unit 09/12 Class Removal Steps

Step-by-step guides for removing components of the 09/12 class indoor unit.

Indoor Unit 15/18/24 Class Removal Steps

Step-by-step guides for removing components of the 15/18/24 class indoor unit.

Outdoor Unit 09/12 Class Removal Steps

Procedure for removing components of the 09/12 class outdoor unit.

Outdoor Unit 15/18/24 Class Removal Steps

Procedure for removing components of the 15/18/24 class outdoor unit.

Trial Operation and Field Settings

Pump Down Operation Procedure

Instructions for pump down operation when relocating or disposing of the unit.

Forced Cooling Operation

Details the procedure for starting and ending the forced cooling operation.

Trial Operation Guide

Guides on performing trial operation to verify functions and parts post-installation.

Field Settings Configuration

Covers model type, temperature display, and room configuration settings.

Silicon Grease Application on PCB

Instructions for applying silicon grease to outdoor unit PCB heat radiation parts.

Appendix

Piping Diagrams for Indoor Units

Provides piping diagrams specific to indoor units.

Piping Diagrams for Outdoor Units

Provides piping diagrams specific to outdoor units.

Indoor Unit Wiring Diagrams

Provides wiring diagrams for indoor units, crucial for troubleshooting.

Outdoor Unit Wiring Diagrams

Provides wiring diagrams for outdoor units, crucial for troubleshooting.

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