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Daikin RXS25F2V1B User Manual

Daikin RXS25F2V1B
283 pages
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[Applied Models]
z Inverter Pair : Cooling Only
z Inverter Pair : Heat Pump
SiBE06-708_A
Inverter Pair
Floor Standing Type F-Series

Table of Contents

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Daikin RXS25F2V1B Specifications

General IconGeneral
Cooling Capacity2.5 kW
Heating Capacity3.2 kW
Power Supply230V/1ph/50Hz
Weight (Indoor Unit)9 kg
RefrigerantR32
Indoor Unit Weight9 kg

Summary

Introduction

Safety Cautions

Provides essential safety precautions for repair work, classifying items into Warning and Caution categories.

Part 2 Specifications

Part 3 Printed Circuit Board Connector Wiring Diagram

PCB Connector Wiring Diagrams

Illustrates the wiring diagrams for printed circuit boards.

Indoor Unit Wiring Diagrams

Provides wiring diagrams for the indoor unit's PCBs and connectors.

Outdoor Unit Wiring Diagrams

Provides wiring diagrams for the outdoor unit's PCBs and connectors.

Part 4 Function and Control

Frequency Control Mechanism

Explains how frequency is determined and controlled for compressor operation.

Four Way Valve Switching

Explains the switching operation of the four-way valve during different modes.

Four Way Valve Operation Compensation

Details compensation for four-way valve operation based on frequency.

Compressor Protection Function

Explains compressor protection limits based on frequency.

Discharge Pipe Temperature Control

Details control mechanisms based on discharge pipe temperature.

Input Current Control

Explains how input current is monitored and used for frequency control.

Freeze-up Protection Control

Describes the freeze-up protection control during cooling operation.

Heating Peak-cut Control

Details heating peak-cut control to prevent abnormal high pressure.

Liquid Compression Protection

Details the protection function against liquid compression for the compressor.

Defrost Control Procedure

Explains the defrosting process carried out by the cooling cycle.

Electronic Expansion Valve Control

Details the control logic for the electronic expansion valve.

Part 6 Service Diagnosis

Diagnostic Cautions

Provides essential cautions before performing diagnostic procedures.

Troubleshooting with LED Indicators

Explains how to troubleshoot using LED indicators on the indoor and outdoor units.

Problem Symptoms and Measures

Lists common operational problems and their corresponding troubleshooting measures.

Troubleshooting Overview

Provides a comprehensive guide to troubleshooting system errors.

Error Codes and Descriptions

Lists and describes all error codes displayed by the system.

Indoor Unit PCB Abnormality Troubleshooting

Details troubleshooting steps for indoor unit PCB abnormalities.

Freeze-up or Heating Peak-cut Troubleshooting

Troubleshooting for freeze-up protection and heating peak-cut control issues.

Fan Motor or Related Abnormality Troubleshooting

Troubleshooting steps for fan motor abnormalities and related issues.

Indoor Thermistor or Related Abnormality

Troubleshooting for indoor unit thermistor abnormalities and related faults.

Signal Transmission Error Troubleshooting

Troubleshooting steps for signal transmission errors between units.

Unspecified Voltage Troubleshooting

Troubleshooting for unspecified voltage issues between units.

Outdoor Unit PCB Abnormality

Troubleshooting steps for outdoor unit PCB abnormalities.

Compressor Overload (OL Activation) Troubleshooting

Troubleshooting for OL activation or compressor overload.

Compressor Lock Troubleshooting

Troubleshooting steps for compressor lock conditions.

DC Fan Lock Troubleshooting

Troubleshooting for DC fan lock errors.

Input Overcurrent Detection Troubleshooting

Troubleshooting for input overcurrent detection.

Four Way Valve Abnormality

Troubleshooting steps for four-way valve abnormalities.

Discharge Pipe Temperature Control Troubleshooting

Troubleshooting related to discharge pipe temperature control.

High Pressure Control in Cooling Troubleshooting

Troubleshooting for high pressure control issues during cooling operation.

Compressor System Sensor Abnormality

Troubleshooting for compressor system sensor abnormalities.

Position Sensor Abnormality Troubleshooting

Troubleshooting for position sensor abnormalities.

DC Voltage/Current Sensor Abnormality (25/35 Class)

Troubleshooting for DC voltage/current sensor abnormalities in 25/35 class units.

CT or Related Abnormality (50 Class)

Troubleshooting for CT or related abnormalities in 50 class units.

Outdoor Thermistor or Related Abnormality

Troubleshooting for outdoor unit thermistor abnormalities.

Part 7 Removal Procedure

Part 8 Trial Operation and Field Settings

Part 9 Appendix

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