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Daikin RXM25A5V1B User Manual

Daikin RXM25A5V1B
72 pages
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Installer reference guide
R32 split series
RXM20A5V1B
RXM25A5V1B
RXM35A5V1B
RXM42A5V1B
ARXM25A5V1B
ARXM35A5V1B

Table of Contents

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Daikin RXM25A5V1B Specifications

General IconGeneral
BrandDaikin
ModelRXM25A5V1B
CategoryAir Conditioner
LanguageEnglish

Summary

About the documentation

About this document

Provides information about the manual's content and purpose.

Meaning of warnings and symbols

Explains the various warning symbols and their meanings used in the document.

General safety precautions

Installer safety precautions

Essential safety instructions for installers during installation, maintenance, and repair.

Installation site guidelines

Requirements and restrictions for selecting a safe and suitable installation location.

Refrigerant safety (R32)

Safety measures related to R32 refrigerant, including handling and risks.

Electrical safety precautions

Critical safety guidelines for electrical connections, wiring, and components.

Specific installer safety instructions

Handling the outdoor unit

Specific safety instructions for physically handling the outdoor unit.

Unit installation safety

Safety considerations during the installation process of the unit.

Installation site safety

Safety rules and precautions related to the chosen installation site.

Opening the unit safety

Safety guidelines to follow when opening the unit for access.

Piping installation safety

Crucial safety instructions for refrigerant piping installation and connection.

Unit installation

Preparing the installation site

Guidelines for selecting and preparing the location for unit installation.

Mounting the outdoor unit

Procedures and precautions for securely mounting the outdoor unit.

Piping installation

Preparing refrigerant piping

Requirements for refrigerant piping material, diameter, and insulation.

Connecting refrigerant piping

Step-by-step guidance and precautions for connecting refrigerant pipes.

Checking refrigerant piping

Procedures for leak testing and vacuum drying of the refrigerant piping.

Charging refrigerant

Refrigerant charging procedures

Steps for charging additional or complete refrigerant into the system.

Refrigerant type R32 overview

Information about R32 refrigerant, its properties, and safety warnings.

Determining refrigerant amounts

Methods for calculating additional refrigerant charge based on piping length.

Post-charging checks and labeling

Procedures for leak checking after charging and filling the gas label.

Electrical installation

Connecting electrical wiring

Guidelines and precautions for connecting power and interconnection wiring.

Wiring guidelines and specifications

Best practices for wire preparation, connection methods, and torque.

Outdoor unit wiring connection

Specific steps for connecting electrical wiring to the outdoor unit.

Finishing the outdoor unit installation

Insulating and fixing piping and cables

Instructions for insulating and securing the refrigerant piping and electrical cables.

Closing the outdoor unit cover

Steps for properly closing the outdoor unit's service cover.

Configuration

Facility setting

How to set the unit for facility mode for low-temperature cooling.

Standby electricity saving function

Instructions for enabling standby electricity saving to reduce power consumption.

Commissioning

Commissioning precautions

Safety measures and general checks before starting the commissioning process.

Commissioning checklists

Items to check before and during the unit commissioning phase.

Performing test run and startup

Steps for conducting a test run and safely starting up the outdoor unit.

Hand-over to the user

User handover procedures

Key information to provide to the user after installation and testing.

Maintenance and service

Maintenance overview and safety

Introduction to maintenance tasks and essential safety precautions.

Yearly maintenance checklist

Items to inspect and clean during annual maintenance of the outdoor unit.

Compressor servicing precautions

Safety guidelines to follow when servicing the unit's compressor.

Troubleshooting

Troubleshooting overview and precautions

General guidance and safety measures for diagnosing and resolving unit issues.

Solving problems by symptom

Common problems and their corresponding corrective actions.

Fault diagnosis using LED

Using the outdoor unit's LED indicators to diagnose faults.

Disposal

Disposal overview and pump down

Information on proper disposal and the procedure for pumping down the system.

Forced cooling methods

Different methods for initiating forced cooling for specific operations.

Technical data

Wiring diagram legend

Explanation of symbols used in the unit's wiring diagrams.

Piping diagram (Outdoor unit)

Visual representation of the refrigerant piping system for the outdoor unit.

Glossary

Key terminology definitions

Definitions of important terms used throughout the manual.

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