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Daikin RXM20A5V1B User Manual

Daikin RXM20A5V1B
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 RXM20A5V1B Specifications

General IconGeneral
Cooling Capacity2.0 kW
RefrigerantR32
Weight (Indoor Unit)9 kg
Noise Level (Outdoor)48 dB(A)
InverterYes
Heating Capacity2.5 kW
TypeSplit System
Power Supply220-240V/50Hz/1Phase

Summary

About the Documentation

About This Document

Details the scope, target audience, and structure of the installer reference guide.

Meaning of Warnings and Symbols

Explains the different warning symbols and their meanings used throughout the manual.

General Safety Precautions

For the Installer

Covers essential safety information for installers, including general warnings and specific risks.

Installation Site Safety

Details safe practices and conditions for selecting and preparing the installation location.

Refrigerant Safety

Addresses specific safety concerns and procedures when handling R32 refrigerant.

Electrical Safety

Outlines crucial safety measures for electrical connections and wiring.

Specific Installer Safety Instructions

Installation Safety

Safety guidelines for handling, site preparation, unit installation, opening, and piping.

Operational Safety

Safety measures for refrigerant charging, electrical work, configuration, and commissioning.

Post-Installation Safety

Safety protocols for maintenance, troubleshooting, and compressor servicing.

About the Outdoor Unit

Unpacking the Outdoor Unit

Step-by-step instructions for safely unpacking the outdoor unit from its packaging.

Handling the Outdoor Unit

Guidelines and precautions for transporting and manipulating the outdoor unit.

Removing Outdoor Unit Accessories

Procedure for locating and removing accessories packed with the outdoor unit.

Unit Installation

Preparing the Installation Site

Guidance on selecting and preparing a suitable location for unit installation.

Outdoor Unit Installation Requirements

Specific requirements and spacing guidelines for outdoor unit placement.

Cold Climate Installation Requirements

Additional site preparation needs for installation in cold weather conditions.

Mounting the Outdoor Unit

Procedures and safety precautions for physically mounting the outdoor unit.

Providing Drainage

Instructions for setting up proper drainage for condensate water.

Preventing Outdoor Unit from Falling

Measures to secure the unit against tilting or falling due to strong winds.

Piping Installation

Preparing Refrigerant Piping

Requirements for refrigerant piping materials, dimensions, and insulation.

Connecting Refrigerant Piping

Detailed steps and precautions for connecting refrigerant piping.

Checking Refrigerant Piping

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

Charging Refrigerant

About Refrigerant Charging

Overview of the process and necessity for adding refrigerant.

About the Refrigerant (R32)

Information about the refrigerant type, properties, and safety warnings.

Determining Additional Refrigerant Amount

Method for calculating the required amount of additional refrigerant.

Charging Additional Refrigerant

Step-by-step guide for adding the calculated amount of refrigerant.

Fixing Fluorinated Greenhouse Gases Label

Instructions for applying the required label indicating refrigerant quantity.

Electrical Installation

Connecting Electrical Wiring

Guidelines and precautions for connecting the unit's electrical wiring.

Wiring Component Specifications

Details on power supply, cables, circuit breakers, and other electrical components.

Connecting to Outdoor Unit

Specific procedures for connecting electrical wiring to the outdoor unit.

Finishing Outdoor Unit Installation

Finishing the Installation

Final steps to complete the outdoor unit installation, including insulation.

Closing the Unit

Procedure for securely closing the outdoor unit covers after installation.

Configuration

Facility Setting

Instructions for enabling facility mode for low-temperature cooling operations.

Standby Electricity Saving Function

Guide to activating the standby electricity saving mode for reduced power consumption.

Commissioning

Commissioning Precautions

Safety measures and critical checks required before and during commissioning.

Commissioning Checklists

Lists of items to verify before and during the unit commissioning process.

Performing a Test Run

Procedure for conducting an initial test run to verify unit operation.

Starting Up the Outdoor Unit

Final steps for powering up and starting the outdoor unit.

Hand-over to the User

User Documentation and Operation

Ensuring the user has the manual and understands basic operation.

User Maintenance and Energy Saving Tips

Providing guidance on unit maintenance and tips for energy efficiency.

Maintenance and Service

Overview: Maintenance and Service

Introduction to the maintenance procedures and service information.

Maintenance Safety Precautions

Safety guidelines to follow when performing maintenance tasks.

Yearly Maintenance Checklist

A checklist of items for annual inspection and cleaning of the outdoor unit.

Compressor Servicing

Specific precautions and procedures for servicing the compressor.

Troubleshooting

Overview: Troubleshooting

Introduction to the troubleshooting section and problem-solving approach.

Troubleshooting Precautions

Safety measures to observe when diagnosing and repairing unit faults.

Solving Problems by Symptom

Guides for diagnosing and resolving issues based on observed symptoms.

Fault Diagnosis Using LED

Interpreting outdoor unit LED indicators to diagnose operational faults.

Disposal

Overview: Disposal

General information and legal requirements for proper unit disposal.

Pump Down Procedure

Steps for safely removing refrigerant from the system before disposal or relocation.

Forced Cooling Procedure

Methods for initiating and stopping forced cooling operations.

Technical Data

Wiring Diagram Legend

Explanation of symbols and codes used in electrical wiring diagrams.

Piping Diagram

Diagram illustrating the refrigerant piping layout and components.

Glossary

Glossary Terms

Definitions of key technical terms and acronyms used in the manual.

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