DAIKIN ROOM AIR CONDITIONEROPERATION MANUALMODELSFTXN15KVJUFTXN18KVJUFTXN24KVJUEnglishFrançaisEspañol

operation manual

Safety Precautions

Name of Parts

front cover

clock button

Preparation before Operation

AUTO · DRY · COOL · HEAT · FAN

operating conditions

Adjusting the Airﬂ ow Direction

POWERFUL Operation

OFF TIMER Operation

ON TIMER Operation

Care and Cleaning

front panel

before a long idle period

Troubleshooting

during operation

call the service shop immediately

Daikin FTXN15KVJU Operation Manual

indoor unit

Removal of Air Filters / Front Panel

Removal of Front Grille

Removal of Horizontal Blades / Vertical Blades

Removal of Electrical Box / PCBs / Swing Motors

Removal of Indoor Heat Exchanger

Removal of Fan Motor / Fan Rotor

FTXN15KVJU

Power Supply

Functions

Specifications

Heat Pump

Dimensions

Outdoor Unit

Wiring Diagrams

Piping Diagrams

Capacity Tables

Operation Limit

Sound Level

Octave Band Level

Electric Characteristics

Installation Manual

choosing an installation site

preparation before installation

indoor unit installation drawings

indoor unit installation

installing indoor unit

left-side, left-back, or left-bottom piping

drain piping

refrigerant piping work

Indoor Unit -15/18/24 Class

Outdoor Unit - 09/12 Class

installation guidelines

pump down operation

Outdoor Unit - 15/18/24 Class

Operation Manual

Safety Considerations - 15/18/24 Class

optional accessories

Optional Accessories

preparation before operation

adjusting airflow direction

timer operation

daily timer

KRP980B1> Interface Adaptor for Wired Remote Controller

removing electrical component box

KRP413AB1S> Wiring Adaptor for Timer Clock / Remote Controller

KRP928BB2S> Interface Adaptor for DIII-NET (Residential Air Conditioner)

KPW937B4> Air Direction Adjustment Grille

KPW937C4> Air Direction Adjustment Grille

safety considerations

List of Functions

Cooling Only

Printed Circuit Board Connector Wiring Diagram

Indoor Unit

Class

Function and Control

Main Functions

Airflow Direction Control

Fan Speed Control for Indoor Unit

Program Dry Operation

Automatic Operation

Thermostat Control

NIGHT SET Mode

ECONO Operation

Inverter POWERFUL Operation

Other Functions

Function of Thermistor

Control Specification

Frequency Control

Controls at Mode Changing / Start-up

compressor protection function

Discharge Pipe Temperature Control

Input Current Control

Freeze-up Protection Control

Outdoor Fan Control

Defrost Control

Electronic Expansion Valve Control

pressure equalizing control

Malfunctions

System Configuration

Remote Controller

AUTO · DRY · COOL · HEAT · FAN Operation

Adjusting the Airflow Direction and Rate

COMFORT AIRFLOW Operation

Service Diagnosis

Troubleshooting with LED

Problem Symptoms and Measures

Service Check Function

Indoor Unit PCB Abnormality

Freeze-up Protection Control or Heating Peak-cut Control

Fan Motor (DC Motor) or Related Abnormality

Thermistor or Related Abnormality (Indoor Unit)

Signal Transmission Error (between Indoor Unit and Outdoor Unit)

Unspecified Voltage (between Indoor Unit and Outdoor Unit)

Outdoor Unit PCB Abnormality

OL Activation (Compressor Overload)

Compressor Lock

DC Fan Lock

Input Overcurrent Detection

Four-Way Valve Abnormality

High Pressure Control in Cooling

Compressor System Sensor Abnormality

Position Sensor Abnormality

DC Voltage / Current Sensor Abnormality (09/12 Class Only)

Thermistor or Related Abnormality (Outdoor Unit)

Electrical Box Temperature Rise

Radiation Fin Temperature Rise

Output Overcurrent Detection

Refrigerant Shortage

Low-voltage Detection or Over-voltage Detection

Thermistor Resistance Check

Fan Motor Connector Output Check

Power Supply Waveforms Check

Four-Way Valve Performance Check

Inverter Checker" Check

Rotation Pulse Check on the Outdoor Unit PCB

Installation Condition Check

Discharge Pressure Check

Main Circuit Short Check

Power Module Check

Removal Procedure

Indoor Unit: 09/12 Class

Removal of Horizontal Blade

Removal of Front Panel

Removal of Electrical Box / Vertical Blades

installation manual

safety precautions

wireless remote controller

refrigerant piping

wall embedded piping

FTXN18KVJU

FTXN24KVJU