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Midea MSG-05CR

Midea MSG-05CR
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MSG-05CR
MSG-07CR; MSG-07HR
MSG-09CR; MSG-09HR
MSG-12CR; MSG-12HR
MSG-16CR; MSG-16HR
MSG-18CR; MSG-18HR
MSG-21CR; MSG-21HR

Questions and Answers:

Midea MSG-05CR Specifications

General IconGeneral
BrandMidea
ModelMSG-05CR
CategoryAir Conditioner
LanguageEnglish

Summary

Precaution and Safety

1.1 Safety Precaution

Instructions to prevent injury to users and property damage, emphasizing correct operation.

1.2 Warnings and Cautions

Important warnings and cautions regarding installation, operation, and general handling.

Functionality Overview

Indoor Unit Functions

Details on indoor unit operations like remote control, fan speed, and air vane control.

Outdoor Unit Features

Description of outdoor unit functionalities such as relay control, ambient kit, and valve control.

Unit Dimensions

3.1 Indoor Unit Dimensions

Specifications and diagrams showing the dimensions of the indoor unit.

3.2 Outdoor Unit Dimensions

Specifications and diagrams showing the dimensions of the outdoor unit.

Technical Specifications

Model Specifications (MSG-05 CR, MSG-07 CR, MSG-07 HR)

Detailed specifications for cooling, heating, compressor, fans, and piping for specified models.

Model Specifications (MSG-09 CR, MSG-09 HR, MSG-12 CR)

Detailed specifications for cooling, heating, compressor, fans, and piping for specified models.

Model Specifications (MSG-12 HR, MSG-16 CR, MSG-16 HR)

Detailed specifications for cooling, heating, compressor, fans, and piping for specified models.

Model Specifications (MSG-18 CR, MSG-18 HR, MSG-21 CR)

Detailed specifications for cooling, heating, compressor, fans, and piping for specified models.

Model Specifications (MSG-21 HR)

Detailed specifications for cooling, heating, compressor, fans, and piping for the MSG-21HR model.

Refrigerant Cycle Diagrams

5.1 Cooling Only Cycle

Diagram illustrating the refrigerant flow for cooling-only operation.

5.2 Heat Pump Mode Cycle

Diagram illustrating the refrigerant flow for heat pump operation.

Operation Limits

6.1 Cooling Operation Limits

Chart showing the operational temperature ranges for cooling mode.

6.2 Heating Operation Limits

Chart showing the operational temperature ranges for heating mode.

Schematic and Wiring Diagrams

7.1 Schematic Diagram

Detailed electronic schematic diagram of the air conditioner control system.

7.2.1 Cooling Mode Wiring (MSG-05 CR, MSG-07 CR, MSG-09 CR, MSG-12 CR)

Wiring diagram for cooling mode specific to MSG-05CR, MSG-07CR, MSG-09CR, MSG-12CR models.

MSG-16 CR Wiring Diagram

Wiring diagram specific to the MSG-16CR model.

MSG-18 CR, MSG-21 CR Wiring Diagrams

Wiring diagrams specific to the MSG-18CR and MSG-21CR models.

MSG-07 HR, MSG-09 HR, MSG-12 HR Wiring Diagrams

Wiring diagrams for MSG-07HR, MSG-09HR, and MSG-12HR models.

MSG-16 HR, MSG-18 HR, MSG-21 HR Wiring Diagrams

Wiring diagrams for MSG-16HR, MSG-18HR, and MSG-21HR models.

Installation Details

8.1 Wrench Torque Sheet

Specifications for tightening torque using wrenches for various pipe diameters during installation.

8.2 Cable Connection Specifications

Guidelines for selecting power cord specifications based on unit capacity.

8.3 Pipe Length and Elevation Limits

Details on standard pipe length, maximum limits, and elevation differences with refrigerant amounts.

8.4 Air Purging Procedure

Step-by-step guide on purging air from the refrigeration piping and indoor unit.

8.5 Pumping Down Procedure

Steps for pumping down the refrigerant system during re-installation.

8.6 Re-air Purging Procedure

Steps for re-purging the air from the refrigeration system during re-installation.

8.7 Balancing Refrigerant

Procedure for balancing refrigerant levels using the 2-way and 3-way valves.

8.8 Evacuation Procedure

Steps for performing vacuum evacuation of the refrigeration system.

8.9 Gas Charging Procedure

Steps for charging the refrigeration system with the correct amount of refrigerant.

Capacity Tables

MSG-05 CR, MSG-07 CR, MSG-07 HR Capacity Data

Cooling mode capacity data for MSG-05CR, MSG-07CR, and MSG-07HR at various temperature conditions.

MSG-09 CR, MSG-09 HR Capacity Data

Cooling and winter mode capacity data for MSG-09CR and MSG-09HR at various temperature conditions.

MSG-12 CR, MSG-12 HR Capacity Data

Cooling and winter mode capacity data for MSG-12CR and MSG-12HR at various temperature conditions.

MSG-16 CR, MSG-16 HR Capacity Data

Cooling and winter mode capacity data for MSG-16CR and MSG-16HR at various temperature conditions.

MSG-18 CR, MSG-18 HR Capacity Data

Cooling and winter mode capacity data for MSG-18CR and MSG-18HR at various temperature conditions.

MSG-21 CR, MSG-21 HR Capacity Data

Cooling and winter mode capacity data for MSG-21CR and MSG-21HR at various temperature conditions.

Electronic Functions

10.1 Control Working Environment

Specifies the required voltage, frequency, ambient temperature, and current limits for electronic control.

10.2 Symbols and Meanings

Explanation of symbols used in the manual and their corresponding meanings.

10.3 System Functions

Overview of various functions including remote receiving, testing, fan vane control, and protections.

10.4 Protection Mechanisms

Details on compressor restart delay, sensor protection, fan speed control, and current protection.

10.5 Fan-Only Mode

Description of fan-only mode operation and available fan speeds.

10.6 Cooling Mode Operation

Explanation of the 4-way valve state and compressor/fan action in cooling mode.

10.7 Dehumidifying Mode

Details on 4-way valve operation, compressor/fan actions, and protection in dehumidifying mode.

10.8 Heating Mode

Explanation of 4-way valve, fan operation, compressor actions, and anti-cold wind function in heating mode.

10.9 Defrosting Mode

Conditions and actions for defrosting mode, including defrosting time and ending criteria.

10.10 Auto Mode

How the unit automatically selects cooling, heating, or fan-only mode based on temperature.

10.11 Force Cooling Function

How to use the forced cooling function and its operational parameters.

10.12 Sleep Mode

Description of the sleep mode function in cooling, heating, and auto modes, including temperature adjustments.

10.13 Auto Restart Function

Functionality that restores the unit to previous settings after a power failure.

10.14 Anion Function

Details on the optional anion function, which starts with the indoor fan.

Model and Parameters

Parameters for MSG-05 CR to MSG-12 HR

Table listing protection parameters and temperature settings for specific models.

Parameters for MSG-16 CR to MSG-21 HR

Table listing protection parameters and temperature settings for specific models.

Troubleshooting

12.1 Display Board Indicators

Explanation of indicators on the display board and their meanings during operation.

12.2 Mode-Specific Troubleshooting

Tables detailing failure phenomena and indicator status for cooling and heat pump modes.

12.3 Diagnostic Chart for No Operation

Flowchart to diagnose issues when the air conditioner cannot be operated after energizing.

12.4 Operational Fault Diagnosis

Procedures for diagnosing resetting phenomena, and lamp status issues for operation and timer indicators.

12.7-12.9 Alarm Signal Troubleshooting

Troubleshooting for specific alarm signals like operation lamp off/flashes, timer lamp status, and EEROM errors.

Temperature Sensor Characteristics

Temperature vs. Resistance Table

Table showing the resistance values of the temperature sensor at different temperature points.

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