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Midea MSG-12HRI User Manual

Midea MSG-12HRI
54 pages
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Content
1
MSC-18HRIN1; MSH-18HRIN1(AAC-18ISCH)
MSE-09HRIN2; MSE-12HRIN2
MSG-07CRIN2; MSG-09HRIN2
MSG-12HRIN2;
MSG-09HRI ;MSG-12HRI
MSG-21HRI ; MSG-24HRI

Table of Contents

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Midea MSG-12HRI Specifications

General IconGeneral
BrandMidea
ModelMSG-12HRI
CategoryAir Conditioner
LanguageEnglish

Summary

Precaution

Safety Precaution

Essential safety guidelines to prevent injury, damage, and ensure proper operation.

Warning

Critical warnings regarding installation, operation, and maintenance to avoid hazards.

Dimension

Indoor unit (Alfa)

Physical dimensions and specifications for the Alfa series indoor units.

Outdoor unit (Alfa)

Physical dimensions and specifications for the Alfa series outdoor units.

Indoor unit (Corona)

Physical dimensions and specifications for the Corona series indoor units.

Outdoor unit (Corona)

Physical dimensions and specifications for the Corona series outdoor units.

Indoor unit(Inverter Eco)

Physical dimensions and specifications for the Inverter Eco series indoor units.

Outdoor unit(Inverter Eco)

Physical dimensions and specifications for the Inverter Eco series outdoor units.

Indoor unit(Inverter Star)

Physical dimensions and specifications for the Inverter Star series indoor units.

Outdoor unit(Inverter Star)

Physical dimensions and specifications for the Inverter Star series outdoor units.

Operation limits

Cooling operation

Defines the operating temperature range for cooling mode based on indoor and outdoor conditions.

Heating operation

Defines the operating temperature range for heating mode based on indoor and outdoor conditions.

Schematic diagram and Wiring diagram

Schematic diagram

Electrical schematics detailing the internal circuitry of the indoor and outdoor units.

Wiring diagram

Visual representation of the electrical connections between unit components and power supply.

Installation details

Wrench torque sheet for installation

Recommended torque values for various pipe fittings during installation.

Connecting the cables

Guidelines for selecting appropriate power cord sizes based on unit capacity.

Pipe length and the elevation

Specifications for maximum pipe length, elevation, and additional refrigerant charges.

Air purging of the piping and indoor unit

Procedure for removing air and moisture from the refrigerant system post-installation.

Pumping down (Re-installation)

Method for recovering refrigerant during unit re-installation or relocation.

Re-air purging (Re-installation)

Procedure for purging air from the system during re-installation or after refrigerant recovery.

Balance refrigerant of the 2-way, 3-way valves

Steps to balance refrigerant charge using the system's service valves.

Evacuation

Process for creating a vacuum in the refrigerant system to remove non-condensable gases.

Gas charging

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

Capacity table

MSH-18HRIN1

Cooling and heating capacity data for the MSH-18HRIN1 model across various conditions.

MSC-18HRIN1

Cooling and heating capacity data for the MSC-18HRIN1 model across various conditions.

MSG-09HRI

Cooling and heating capacity data for the MSG-09HRI model across various conditions.

MSG-12HRI

Cooling and heating capacity data for the MSG-12HRI model across various conditions.

MSG-21HRI

Cooling and heating capacity data for the MSG-21HRI model across various conditions.

MSG-24HRI

Cooling and heating capacity data for the MSG-24HRI model across various conditions.

Electronic function

Display board

Explanation of indicators and their functions on the unit's display board.

Protection

Details on various protection mechanisms implemented in the air conditioner system.

Fan-only mode

Information on operating the unit solely for ventilation purposes.

Cooling mode

Operational characteristics and controls specific to the cooling mode.

Dehumidifying mode

Details on the unit's operation and features during dehumidification.

Heating mode

Operational characteristics and controls specific to the heating mode.

Defrosting operation (Available for heating only)

Conditions and actions for the automatic defrosting cycle in heating mode.

Outdoor low temperature protection (optional)

Functionality of protection against low outdoor temperatures.

Automatic operation mode

How the unit automatically selects operational modes based on conditions.

Manual switch

Operation of the manual mode selection button on the unit.

Timer Function

Features and operation of the unit's timer settings.

Sleep mode

Functionality and settings for the sleep mode to optimize comfort and energy use.

Auto restart function

How the unit resumes operation after a power interruption.

Turbo function

Operation and effects of the turbo mode for rapid cooling/heating.

Plasma

Information on the optional plasma air purification feature.

Troubleshooting

Indoor Unit Error Display

List and explanation of error codes displayed on the indoor unit.

Diagnostic chart

Flowchart to diagnose operational issues when no indicator is lit.

Resetting phenomenon often occurs during operation

Troubleshooting steps for units that frequently reset during operation.

Operation lamp flashes and Timer lamp off

Diagnosis for operation lamp flashing with timer lamp off.

Operation lamp flashes and Timer lamp on

Diagnosis for operation lamp flashing with timer lamp on.

Operation lamp off and Timer lamp flashes

Diagnosis for operation lamp off with timer lamp flashes.

Operation lamp on and Timer lamp flashes

Diagnosis for operation lamp on with timer lamp flashes.

Operation lamp flashes, Timer lamp flashes

Diagnosis for operation lamp and timer lamp flashing simultaneously.

Characteristic of temperature sensor

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