Midea MCD-48HRFN1-M(D) 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 MCD-48HRFN1-M(D) Specifications

General

Brand	Midea
Model	MCD-48HRFN1-M(D)
Category	Air Conditioner
Language	English

Summary

Precautionary Measures

Safety and Warning Precautions

General safety guidelines and warnings for unit installation and operation.

Installation Service Space Requirements

Refrigerant Cycle Diagram

Wiring Diagrams

Indoor Unit Wiring Schematics

Provides detailed wiring diagrams for various indoor unit models, illustrating component connections.

Outdoor Unit Wiring Schematics

Presents wiring diagrams specific to different outdoor unit models and their main PCBs.

Field Wiring Guidelines

Installation Details

Location Selection Criteria

Specifies optimal placement for indoor and outdoor units, considering support, drainage, air circulation, and neighbors.

Indoor Unit Installation Procedures

Outdoor Unit Installation Procedures

Refrigerant Pipe Installation

Drainage Pipe Installation

Vacuum Drying and Leakage Checking

Purpose and Procedure for Vacuum Drying

Electrical Wiring Installation Guidelines

Electrical Wiring Installation Highlights

Test Operation Procedures

Electronic Functions and Protections

Main Protection Mechanisms

Details protections like compressor delay, temperature protection, fan speed issues, and inverter module protection.

Troubleshooting Guide

Indoor Unit Error Codes

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

Wired Controller Error Display

Explains error codes and LED statuses displayed on the two-way communication wired controller.

Error Diagnosis and Solutions

Provides diagnostic flowcharts and solutions for specific error codes like EEPROM errors, communication malfunctions, and fan speed issues.

Disassembly Instructions

Indoor Unit Component Disassembly

Step-by-step instructions for disassembling indoor unit components like filters, panels, motors, PCBs, and evaporators.

Outdoor Unit Component Disassembly

Provides procedures for disassembling outdoor unit components such as panel plates, fans, electrical parts, and compressors.