Midea Mono 3D User Manual

Revision A: 1312030001, Content updated.
Model Numbers:
MS11M-09HRFN1-MW0W MS11M-12HRFN1-MV0W MS11M-18HRFN1-MU0W
MS11M-24HRDN1-MT0W
Oasis MONO Split 3D DC Inverter
Air Conditioner
SERVICE MANUAL Mono 3D
Table of Contents
1. Precaution
2. Part Names And Functions
3. Dimension
4. Refrigerant Cycle Diagram
5. Wiring Diagram
6. Installation Details
7. Operation Characteristics
8. Electronic Function
9. Troubleshooting
10. Exploded View
11. Disassembly Instructions
WARNING
 Installation MUST conform with local building codes or, in the absence of local codes, with the
National Electrical Code NFPA70/ANSI C1-1993 or current edition and Canadian Electrical
Code Part1 CSA C.22.1.
 The information contained in the manual is intended for use by a qualified service technician
familiar with safety procedures and equipped with the proper tools and test instruments
 Installation or repairs made by unqualified persons can result in hazards to you and others.
 Failure to carefully read and follow all instructions in this manual can result in equipment
malfunction, property damage, personal injury and/or death.
 This service is only for service engineer to use.

Midea Mono 3D Specifications

General

Brand	Midea
Model	Mono 3D
Category	Air Conditioner
Language	English

Summary

1. Precaution and Safety

1.1 Safety Precautions

Directives to prevent injury, property damage, and ensure correct usage.

1.2 Warnings

Critical warnings covering installation, electrical hazards, and operational risks.

6. Installation Details

6.4 First-Time Installation

Procedures for initial system setup, including leak testing and evacuation.

7. Operation Characteristics

8. Electronic Functions and Protection

8.3 Main Protection

Overview of the unit's internal protection mechanisms against various faults.

8.4 Operation Modes

8.4.1 Fan and Cooling Operations

Details on fan control, cooling cycle rules, and fan modes.

8.4.2 Heating and Drying Modes

Operation rules for heating, defrosting, and drying modes.

9. Troubleshooting

9.1 Indoor Unit Error Display

Table of indoor unit error codes, symptoms, and potential causes.

9.2 Outdoor Unit Error Display

LED status indicators and error codes for outdoor unit malfunctions.

9.3 Diagnosis and Solution

Step-by-step diagnostic procedures for common error codes.

Main Parts Check and Testing

1. Temperature Sensor Checking

2. Compressor and IPM Testing

11. Disassembly Instructions

11.1 Indoor Unit Disassembly

11.2 Outdoor Unit Disassembly