Midea MOX330-09HFN1-MY5W User Manual

Revision O: 2103, Content updated.
Model Numbers:
Indoor Unit:
MCA3U-09HRFN1-M(C); MCA3U-12HRFN1-M(C); MCA3U-18HRFN1-M(C);
MFAU-12HRFN1-M(C); MCD-24HRFN1-M(C); MCD-36HRFN1-M(C);
MCD-48HRFN1-M(D); MUEU-18HRFN1-M(C); MUEU-24HRFN1-M(C); MUE-36HRFN1-M(C);
MUE-48HRFN1-M(C); MUE-60HRFN1-MW; MTIU-09HWFN1-M, MTIU-12HWFN1-M;
MTIU-18HWFN1-M; MTIU-24HWFN1-M; MTI-36HWFN1-M; MTI-48HWFN1-M;
MHG-60HWFN1-MW; MCD1-24HRFN1-MT0W(GA)
Outdoor Unit:
MOB30-09HFN1-MX0W; MOB01-09HFN1-MW0W; MOB30-12HFN1-MV0W;
MOB01-12HFN1-MV0W; MOCA30-18HFN1-MT0W; MOCA01-18HFN1-MT0W;
MOD30-24HFN1-MT0W; MOD01-23HFN1-MT0W; MOBA30-09HFN1-MT0W;
MOB30-12HFN1-MT0W; MOCA31-18HFN1-MT0W; MOD31-24HFN1-MT0W;
MOD30U-36HFN1-M; MOE30U-48HFN1-M; MOE30U-60HFN1-M; MOE30U-36HFN1-M-[X]
MOE30U-48HFN1-M-[X]; MOD30U-36HFN1-MP0; MOE30U-48HFN1-MP0
MOX230-09HFN1-MW5W; MOX330-09HFN1-MY5W; MOX230-12HFN1-MV5W;
MOX330-12HFN1-MW5W, MOX430-17HFN1-MT0W, MOD30-24HFN1-MU0W,
MOD33-24HFN1-MT0W
Light commercial MONO 3D Air
Conditioner
SERVICE MANUAL Mono DC
Table of Contents
1. Precaution
2. Part Names And Functions
3. Dimension
4. Service space
5. Refrigerant Cycle Diagram
6. Wiring Diagram
7. Fan Curves
8. Air Velocity Distributions
9. Electric Characteristics
10. Sound Level
11. Accessories
12. The Specification of Power
13. Field Wiring
14. Installation Details
15. Operation Characteristics
16. Electronic Function
17. Troubleshooting
18. 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 MOX330-09HFN1-MY5W Specifications

General

Brand	Midea
Model	MOX330-09HFN1-MY5W
Category	Air Conditioner
Language	English

Summary

Precaution

Safety Precaution

Warning

Service Space

Refrigerant Cycle Diagram

Wiring Diagram

Indoor Unit

Outdoor Unit

Electric Characteristics

The Specification of Power

Field Wiring

Installation Details

Location selection

Indoor unit installation

Outdoor unit installation

Refrigerant pipe installation

Covers maximum pipe lengths, pipe connection procedures, and flare specifications.

Drainage pipe installation

Details principles, selection, design, and testing of drainage pipe systems.

Vacuum Drying and Leakage Checking

Explains the purpose and procedures for vacuum drying and leakage testing.

Additional refrigerant charge

Engineering of electrical wiring

Test operation

Details the steps and checks required for performing a test operation after installation.

Electronic Function

Main Protection

Describes protection mechanisms like compressor restart delay, temperature protection, and fan speed malfunction.

Troubleshooting

Safety

Highlights safety precautions, especially regarding capacitor discharge before maintenance.

Indoor Unit Error Display

Lists error codes displayed on the indoor unit, their meanings, and corresponding LED status.

Error Display on Two Way Communication Wired Controller

Explains error codes displayed on the wired controller for communication issues and other malfunctions.

Outdoor unit error display

Lists error codes and their meanings specific to the outdoor unit.

Diagnosis and Solution

Provides diagnostic flowcharts and solutions for common error codes like EEPROM, communication, and fan malfunctions.

Disassembly Instructions