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Mitsubishi Electric BRANCH BOX PAC-MKA53BC User Manual

Mitsubishi Electric BRANCH BOX PAC-MKA53BC
44 pages
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POUR L’INSTALLATEUR
PARA EL INSTALADOR
FOR INSTALLER
Air-Conditioners Indispensable Optional Parts
BRANCH BOX
PAC-MKA53BC
PAC-MKA33BC
ONLY FOR R410A OUTDOOR UNIT
ONLY FOR INDOOR USE
HFC
utilized
R410A
INSTALLATION MANUAL
For safe and correct use, please read this installation manual thoroughly before installing the air-conditioner
unit.
MANUEL D’INSTALLATION
Veuillez lire le manual d’installation en entier avant d’installer ce climatiseur pour éviter tout accident et vous
assurer d’une utilisation correcte.
MANUAL DE INSTALACIÓN
Para un uso seguro y correcto, lea detalladamente este manual de instalación antes de montar la unidad de aire
acondicionado.
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WG79B826H01_04cover.indd 1 2022/12/05 10:58:42
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Mitsubishi Electric BRANCH BOX PAC-MKA53BC Specifications

General IconGeneral
ModelPAC-MKA53BC
CategoryAir Conditioner
BrandMitsubishi Electric
SeriesBranch Box
RefrigerantR410A
ApplicationCommercial
Compatible SystemsCity Multi

Summary

Safety Precautions

Installation and Electrical Safety Guidelines

Covers warnings on proper installation, grounding, and electrical work.

Refrigerant and Environmental Hazard Warnings

Covers refrigerant handling, gas hazards, and environmental considerations.

Location Selection for Installation

Installation Site Requirements and Considerations

Details on placement, noise, servicing, and environmental factors for installation.

Confirming Supplied Accessories

Branch Box Parts Identification

Lists and identifies all included accessories for the branch box.

Branch Box Dimensions and Pipe Specifications

Optional Joints and Pipe Sizing

Details on optional joints and pipe diameter specifications for different models.

PAC-MKA53BC Dimensions and Diagrams

Provides dimensional diagrams and specifications for the 5-branch PAC-MKA53BC.

Branch Box Dimensions and Piping Procedures

PAC-MKA33BC Dimensions and Piping Changes

Details dimensions, piping configurations, and direction change procedures for the 3-branch PAC-MKA33BC.

Branch Box Dimensions and Servicing Space

Piping Direction Change Procedures

Step-by-step guide for altering the piping direction of the branch box.

Branch Box Installation and Servicing Clearances

Installation and Servicing Space Requirements

Details required clearances for installation, servicing, floor, and wall mounting.

Mounting the Branch Box

Branch Box Mounting Procedure

Step-by-step instructions for securely mounting the branch box using suspension bolts.

Installing Refrigerant Piping

Refrigerant Pipe Specifications and Torque

Details on pipe dimensions, flare nut torque, and oil application for connections.

Piping Connection Procedure and Precautions

Step-by-step guide for connecting refrigerant pipes, including cautions.

Refrigerant Piping and Port Handling

Pipe Covers and Unconnected Port Handling

Instructions for fitting pipe covers and handling ports not connected to the outdoor unit.

Piping Support and Refrigerant Charge Notes

Guidelines for supporting piping to prevent strain and notes on refrigerant charging.

Electrical Work

Electrical Work Precautions

Essential warnings regarding circuit safety, earthing, wiring, and connections.

Electrical Wiring and Conduit Procedures

Step-by-step guide for connecting electrical wiring and using conduits.

External Wiring Procedures

External Wiring Diagrams and Connections

Details on external wiring for separate power supply and power supply from the outdoor unit.

Electrical Wiring Specifications and Power Supply

Wiring Specifications and Power Supply

Covers wiring types, sizes, polarity, and power supply configurations.

High Voltage and Isolator Precautions

Warnings about high voltage on signal lines and proper use of isolators.

Switch Setting Configuration

Dip Switch and Address Setting

Instructions for configuring dip switches and setting unit addresses for operation.

Test Run Procedure

Test Run Procedure and Precautions

Guidelines for performing test runs, including correct power order and cautions.

Troubleshooting Common Test Run Symptoms

Lists common symptoms during test run, their causes, and expected displays.

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