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Mitsubishi Heavy Industries SRK50A User Manual

Mitsubishi Heavy Industries SRK50A
160 pages
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2004 ROOM AIR-CONDITIONING
TECHNICAL HANDBOOK

Table of Contents

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Mitsubishi Heavy Industries SRK50A Specifications

General IconGeneral
Cooling Capacity5.0 kW
RefrigerantR410A
TypeSplit System
Power Supply220-240V, 50Hz
Rated Cooling Power Input1560 W

Summary

General Information

Specific Features of Room Air Conditioners

Details the key features like remote control flap, auto operation, and self-diagnosis.

Understanding Model Name Conventions

Explains the nomenclature used in model names for easy identification.

Self Diagnosis Function Overview

Describes how the unit indicates operational abnormalities through lamps.

Selection Data

Model Specifications and Technical Data

Lists detailed technical specifications for different models, including capacity, power, and dimensions.

Operating Range and Limitations

Defines the permissible operating conditions and limitations for the units.

Unit Exterior Dimensions and Layout

Provides detailed dimensional drawings for indoor and outdoor units.

Refrigerant Piping System Diagram

Illustrates the refrigerant flow path and components within the system.

Cooling Capacity Selection Chart

Guides on how to adjust cooling capacity based on temperature and piping length.

Electrical Data

Electrical Wiring Diagrams and Components

Details the electrical connections, color symbols, and component meanings.

Outline of Operation Control by Microcomputer

Operation Control Function by Remote Controller

Explains the functions and indicators of the wireless remote controller.

Back-up Switch and Auto Restart Functions

Describes manual switch operation and auto-restart feature after power loss.

Flap Control Modes

Explains the different flap movement modes: AUTO, Swing, and Memory.

Comfort Timer Adjustment Settings

Details how the timer adjusts operation start time based on room temperature.

Cooling Operation of Major Components

Describes the operation of indoor fan, flaps, and 52C during cooling.

Dehumidifying Operation Modes and Cycles

Explains the operation blocks and cycles for dehumidifying modes.

Automatic Operation Mode Determination

Details how the unit determines the operation mode automatically.

Fan Speed Control and Operation

Explains fan speed changes, auto fan control, and high power fan operation.

Protective Control Functions and Diagnosis

Covers dew condensation prevention, frost prevention, and self-diagnosis indicators.

Application Data

Installation Safety Precautions and Warnings

Highlights critical safety measures and warnings for installation.

Location Selection Guidelines for Units

Provides recommendations for indoor and outdoor unit placement.

Indoor Unit Installation Procedure

Step-by-step guide for mounting the indoor unit and related components.

Indoor Unit Wiring and Piping Preparation

Instructions for connecting wires and forming pipes for the indoor unit.

Outdoor Unit Installation and Connections

Covers outdoor unit placement, fixing, and connecting wiring.

Refrigerant Piping Connection and Charging

Details steps for connecting refrigerant pipes, air purging, and charging.

Unit Test Run Procedure

Outlines the process for conducting a trial run and confirming operation.

Maintenance Data

General Troubleshooting Procedures

Provides a flowchart for initial troubleshooting before PCB replacement.

Indoor Unit Self-Diagnosis Indicators

Explains the meaning of flashing lamps for diagnosing indoor unit faults.

Troubleshooting Specific Unit Abnormalities

Details troubleshooting steps for outdoor unit, fan motor, and thermistor issues.

Trouble Diagnostic Procedures

Presents diagnostic procedures for unit malfunctions and component checks.

Thermistor Troubleshooting Chart

Provides a chart for diagnosing issues related to temperature thermistors.

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