Mitsubishi Electric MXZ-2C20NA4 - User Manual

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Installation Manual
For INSTALLER
• This manual only describes the installation of outdoor unit.
When installing the indoor unit, refer to the installation manual of indoor unit.
Any structural alterations necessary for installation must comply with local build-
ing code requirements.
Notice d’installation
Destinée à l ’ INSTALLATEUR
• Cette notice ne décrit que l’installation de l’appareil extérieur.
Lors de l’installation de l’appareil intérieur, consultez la notice d’installation de cet
appareil.
Toute altération structurelle requise pour l’installation doit être conforme aux exi-
gences du code du bâtiment local.
Manual de instalación
Para el INSTALADOR
• En este manual sólo se describe la instalación de la unidad exterior.
Para instalar la unidad interior, consulte el manual de instalación de dicha unidad.
 Cualquiermodicaciónestructuralnecesariaparallevaracabolainstalaciónde-
berácumplirlasnormasdeedicaciónlocales.
Split-type Air-Conditioner
MXZ-2C20NA4
VG79N191H01_01En.indd 1 2022/06/28 11:39:39

Summary

Before Installation

Safety Precautions

Essential safety precautions and warnings to be observed before installation.

Specifications

Technical specifications of the outdoor unit, including power, pipe length, and refrigerant.

Selecting Optional Different-Diameter Joints

Guide on selecting optional joints for different pipe diameters.

Selecting the Installation Location

Criteria and recommendations for choosing the optimal installation location for the outdoor unit.

Installation Diagram

Diagram illustrating the installation layout and required clearances for the outdoor unit.

Outdoor Unit Installation

Installing the Unit

Procedures for physically installing the outdoor unit on its foundation.

Connecting Wires for Outdoor Unit

Detailed steps for connecting electrical wiring to the outdoor unit.

Flaring Work and Pipe Connection

Precautions for Devices That Use R410 A Refrigerant

Safety precautions and material specifications for R410A refrigerant systems.

Flaring Work

Step-by-step guide on performing flaring work on refrigerant pipes.

Pipe Connection

Instructions for connecting refrigerant pipes to the indoor and outdoor units.

Insulation and Taping

Procedures for insulating and taping refrigerant pipes to prevent condensation.

Purging Procedures, Leak Test, and Test Run

Purging Procedures and Leak Test

Steps for purging air and testing for refrigerant leaks.

Gas Charge

Procedure for charging the correct amount of refrigerant into the system.

Test Run

Instructions for performing operational test runs of the installed unit.

Explanation to the User

Guidance on explaining unit operation and maintenance to the end-user.

Pumping Down

Mitsubishi Electric MXZ-2C20NA4 Specifications