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Mitsubishi Heavy Industries DXK21ZMA-S User Manual

Mitsubishi Heavy Industries DXK21ZMA-S
156 pages
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RESIDENTIAL AIR-CONDITIONING
TECHNICAL MANUAL & PARTS LIST
WALL MOUNTED TYPE
RESIDENTIAL AIR-CONDITIONERS
(Split system, air to air heat pump type)
SRK63ZMA-S
SRK71ZMA-S
SRK80ZMA-S
SRK92ZMA-S
Manual No.'13•SRK-T-147
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Mitsubishi Heavy Industries DXK21ZMA-S Specifications

General IconGeneral
BrandMitsubishi Heavy Industries
ModelDXK21ZMA-S
CategoryAir Conditioner
LanguageEnglish

Summary

Maintenance Data

Cautions for Maintenance

Safety precautions during maintenance.

Pre-Troubleshooting Checks

Initial checks before diagnosing system issues.

Troubleshooting - Unit Not Running

Guide for when the air conditioner fails to operate.

Troubleshooting - Unit Running

Diagnostic procedures for issues during operation.

Self-Diagnosis Table and Service Mode

Reference for error codes and accessing service mode.

Inspection Procedures for Sensors

Guidelines for checking and troubleshooting sensors.

Inspection Procedures for Electrical Issues

Steps for diagnosing and resolving electrical faults.

Troubleshooting Phenomena (Shortcircuit/Breakage)

Identifying issues from short circuits or wire breakages.

Indoor Electrical Equipment Check

Procedures for checking indoor unit electrical components.

Fuse Inspection Procedure

Guide for checking and replacing blown fuses on PCBs.

Specifications

Electrical Wiring

Indoor units

Schematic diagrams for indoor unit connections.

Outdoor units

Schematic diagrams for outdoor unit connections.

Piping System

Refrigerant Piping Diagram

Diagram of the refrigerant circuit.

Application Data

Indoor Unit Installation Procedures

Step-by-step guide for indoor unit installation.

Outdoor Unit Installation Procedures

Steps for installing the outdoor unit and accessories.

Refrigerant Piping Work

Detailed instructions for connecting refrigerant pipes.

Electrical Wiring Work

Procedures and precautions for electrical connections.

Installation Test Check Points

Outline of Operation Control by Microcomputer

Protection Control Functions

Various protective functions for safe operation.

Refrigeration Cycle System Protection

Safety mechanisms for the refrigerant cycle.

Outdoor Unit Inspection Points

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