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Midea MSR1-24HRDN1-QC2W User Manual

Midea MSR1-24HRDN1-QC2W
35 pages
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SERVICE MANUAL
MIDEA AIRCONDITIONER
DC INVERTER
SPLIT WALL-MOUNTED TYPE
MSR1-24HRDN1-QC2W
V1.0
Mar., 2010
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Midea MSR1-24HRDN1-QC2W Specifications

General IconGeneral
RefrigerantR410A
Power Supply220-240V, 50Hz
Outdoor Unit Weight45 kg
TypeSplit
Cooling Capacity24000 BTU/h
FunctionsCooling, Heating, Dehumidification, Fan
Heating Capacity24000 BTU/h
Operating Temperature (Cooling)18°C to 43°C

Summary

1. Safety Precautions and Warnings

1.1 Safety Precaution Guidelines

Instructions to prevent injury and property damage during operation and maintenance.

1.2 Installation and Operational Warnings

Critical warnings regarding electrical safety, installation, and handling of the unit.

1.3 Cautionary Notes

Important cautions for installation, operation, and environmental considerations.

1.4 Operational Advisories

Advisories on proper usage, cleaning, and handling of components during operation.

4. Technical Specifications

6. Wiring Diagrams

8. Electronic Functions

8.3 Protection Mechanisms

Details on the unit's various protection features against operational faults.

8.7.6 Defrosting Mode Conditions

Conditions that trigger the unit's defrosting cycle.

9. Troubleshooting

Troubleshooting Safety Precautions

Essential safety warnings before performing troubleshooting procedures.

9.1 Indoor Unit Error Display

9.2 Diagnosis and Solutions

9.2.1 EEPROM Parameter Error Diagnosis

Steps to diagnose and resolve EEPROM parameter errors.

9.2.2 Communication Protection Error Diagnosis

Steps to diagnose and resolve communication protection errors.

9.2.3 Outdoor Sensor Error Diagnosis

Steps to diagnose and resolve outdoor temperature sensor errors.

9.2.5 Inverter Overcurrent Protection Diagnosis

Steps to diagnose and resolve inverter module overcurrent protection faults.

9.2.6 Voltage Protection Diagnosis

Steps to diagnose and resolve over/under voltage protection faults.

9.2.7 Compressor Top Temperature Protection Diagnosis

Steps to diagnose and resolve compressor top temperature protection faults.

9.2.8 Inverter Compressor Drive Error Diagnosis

Steps to diagnose and resolve inverter compressor drive errors.

9.3 Key Parts Checking

9.3.1 Compressor Resistance Check

Procedure to measure compressor winding resistance using a multimeter.

9.3.2 Outdoor Fan Motor Resistance Check

Procedure to measure outdoor fan motor winding resistance.

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