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Daikin RX30NMVJU - Service Manual

Daikin RX30NMVJU
132 pages
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Service
Manual
Inverter Pair
Wall Mounted Type FTX-N Series
SiUS041638EA
[Applied Models]
Inverter Pair : Cooling Only
Inverter Pair : Heat Pump

Table of Contents

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Summary

Safety Cautions

Warnings and Cautions for Workers

Safety guidelines for personnel performing maintenance and inspection.

Warnings and Cautions for Users

Safety guidelines for end-users operating the equipment.

Icons Used

Part 1 List of Functions

Functions Overview

Comprehensive list of all available functions for the indoor and outdoor units.

Part 2 Specifications

Cooling Only Specifications

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

Heat Pump Specifications

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

Part 3 Printed Circuit Board Connector Wiring Diagram

Indoor Unit PCB Wiring

Detailed wiring diagram for the indoor unit's printed circuit board and connectors.

Outdoor Unit PCB Wiring

Detailed wiring diagram for the outdoor unit's printed circuit board and connectors.

Part 4 Functions and Control

Main Functions Overview

Explains core operational functions like temperature control, frequency, and airflow direction.

Thermistor Functions

Details the role and function of various thermistors used for temperature sensing.

Control Specifications

Outlines control logic, mode hierarchy, and frequency control mechanisms.

Part 5 Remote Controller

Remote Controller Operation Guide

Explains the layout and operation of the remote controller for unit functions.

Part 6 Service Diagnosis

General Problem Symptoms and Check Items

Lists common operational problems and initial checks for troubleshooting.

Troubleshooting with LED Indicators

Guides troubleshooting based on LED status on indoor and outdoor units.

Service Diagnosis Procedures

Provides methods for entering and navigating service diagnostic modes on the remote controller.

Troubleshooting Error Codes and Descriptions

Detailed list of error codes, their meanings, and corresponding reference pages for resolution.

Component Checks and Troubleshooting Steps

Step-by-step procedures for checking key components like thermistors, motors, and valves.

Part 7 Trial Operation and Field Settings

Pump Down Operation Procedure

Procedure for safely removing refrigerant before relocation or disposal.

Forced Cooling Operation

Steps to activate forced cooling mode for specific maintenance tasks.

Trial Operation Guide

Instructions for performing initial operational tests after installation.

Field Settings Configuration

Guides on setting model type, temperature display, and other unit configurations.

Silicone Grease Application

Instructions for applying silicone grease to power transistors/diode bridges on PCBs.

Part 8 Appendix

Piping Diagrams

Visual representations of refrigerant piping for indoor and outdoor units.

Operation Limit

Graphical representation of operating limits for cooling and heating based on indoor/outdoor temperatures.

Summary

Safety Cautions

Warnings and Cautions for Workers

Safety guidelines for personnel performing maintenance and inspection.

Warnings and Cautions for Users

Safety guidelines for end-users operating the equipment.

Icons Used

Part 1 List of Functions

Functions Overview

Comprehensive list of all available functions for the indoor and outdoor units.

Part 2 Specifications

Cooling Only Specifications

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

Heat Pump Specifications

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

Part 3 Printed Circuit Board Connector Wiring Diagram

Indoor Unit PCB Wiring

Detailed wiring diagram for the indoor unit's printed circuit board and connectors.

Outdoor Unit PCB Wiring

Detailed wiring diagram for the outdoor unit's printed circuit board and connectors.

Part 4 Functions and Control

Main Functions Overview

Explains core operational functions like temperature control, frequency, and airflow direction.

Thermistor Functions

Details the role and function of various thermistors used for temperature sensing.

Control Specifications

Outlines control logic, mode hierarchy, and frequency control mechanisms.

Part 5 Remote Controller

Remote Controller Operation Guide

Explains the layout and operation of the remote controller for unit functions.

Part 6 Service Diagnosis

General Problem Symptoms and Check Items

Lists common operational problems and initial checks for troubleshooting.

Troubleshooting with LED Indicators

Guides troubleshooting based on LED status on indoor and outdoor units.

Service Diagnosis Procedures

Provides methods for entering and navigating service diagnostic modes on the remote controller.

Troubleshooting Error Codes and Descriptions

Detailed list of error codes, their meanings, and corresponding reference pages for resolution.

Component Checks and Troubleshooting Steps

Step-by-step procedures for checking key components like thermistors, motors, and valves.

Part 7 Trial Operation and Field Settings

Pump Down Operation Procedure

Procedure for safely removing refrigerant before relocation or disposal.

Forced Cooling Operation

Steps to activate forced cooling mode for specific maintenance tasks.

Trial Operation Guide

Instructions for performing initial operational tests after installation.

Field Settings Configuration

Guides on setting model type, temperature display, and other unit configurations.

Silicone Grease Application

Instructions for applying silicone grease to power transistors/diode bridges on PCBs.

Part 8 Appendix

Piping Diagrams

Visual representations of refrigerant piping for indoor and outdoor units.

Operation Limit

Graphical representation of operating limits for cooling and heating based on indoor/outdoor temperatures.

Daikin RX30NMVJU Specifications

General IconGeneral
BrandDaikin
ModelRX30NMVJU
CategoryAir Conditioner
LanguageEnglish

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