REMOVALPROCEDURES E R V I C E M A N U A L2.5/3.5 kW ClassOutdoor UnitInverterPair TypeSi001161

Daikin RXN25KEV1B Service Manual

safety cautions

Part 1 List of Functions

Functions

Part 2 Specifications

Specifications

Part 3 Printed Circuit Board Connector Wiring Diagram

Indoor Unit

Outdoor Unit

Part 4 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

Discharge Pipe Temperature Control

Input Current Control

Freeze-up Protection Control

Outdoor Fan Control

Defrost Control

Electronic Expansion Valve Control

Malfunctions

Part 5 Operation Manual

System Configuration

Operation Manual

AUTO · DRY · COOL · HEAT · FAN Operation

Adjusting the Airflow Direction

COMFORT AIRFLOW Operation

POWERFUL Operation

OFF TIMER Operation

ON TIMER Operation

Part 6 Service Diagnosis

Troubleshooting with LED

Problem Symptoms and Measures

Service Check Function

Troubleshooting

Indoor Unit PCB Abnormality

Freeze-up Protection Control or Heating Peak-cut Control

Fan Motor (AC 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

Input Overcurrent Detection

Four Way Valve Abnormality

High Pressure Control in Cooling

Compressor System Sensor Abnormality

Position Sensor Abnormality

DC Voltage / Current Sensor Abnormality

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

Check

Hall IC Check

Electronic Expansion Valve Check

Four Way Valve Performance Check

Inverter Checker" Check

Installation Condition Check

Discharge Pressure Check

Main Circuit Short Check

Part 7 Removal Procedure

Removal of Horizontal Blade

Removal of Front Panel

Removal of Front Grille

Removal of Electrical Box / Vertical Blades

Removal of Swing Motor / PCBs

Removal of Indoor Heat Exchanger

Removal of Fan Rotor / Fan Motor

Exchange of Drain Hose (Piping Direction)

Removal of Outdoor Fan / Fan Motor

Removal of Electrical Box / PCB

Removal of Sound Blankets

Removal of Four Way Valve

Removal of Compressor

Part 8 Trial Operation and Field Settings

Pump Down Operation

Forced Cooling Operation

Trial Operation

Field Settings

Application of Silicon Grease to a Power Transistor and a Diode Bridge

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