Midea MSMBD-22CRDN1-MP5W User Manual

Revision A: 1502250001, Content updated.
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
SERVICE MANUAl
DC Inverter Air Conditioner
Table of Contents
1. Precaution
2. Part Names
3. Dimension
4. Refrigerant Cycle Diagram
5. Printed Circuit Board Connector Wiring Diagram of Outdoor Unit
6. Installation Details
7. Operation Characteristics
8. Electronic Function
9. Troubleshooting
10. Disassembly Instructions
Mini Split 3D
MSMBB-12CRDN1-MP0W
MSMBC-18CRDN1-MP0W
MSMBD-22CRDN1-MP5W
WARNING
• Installation MUST conform with local building codes or, in the absence of local codes, with the
malfunction, property damage, personal injury and/or death.
Models:
This Manual Is For Qualified Service Engineer Use Only

Midea MSMBD-22CRDN1-MP5W Specifications

General

Brand	Midea
Model	MSMBD-22CRDN1-MP5W
Category	Air Conditioner
Language	English

Summary

Precautionary Measures

Safety Precautions and Warnings

Covers essential safety guidelines and warnings for installation and operation.

Refrigerant Cycle Diagram

Outdoor Unit PCB Wiring Diagrams

MOB1-12CDN1-MP0W Wiring

MOC-18CDN1-MP0W Wiring

MOF1-22CDN1-MP5W Wiring

Installation Details

Wrench Torque and Cable Specs

Details torque specs for installation and recommended AWG wire sizes.

First-Time Installation Procedures

Details leak checking methods and vacuum pump evacuation procedures.

Refrigerant Handling Procedures

Outlines procedures for adding refrigerant and servicing refrigeration circuits.

Electronic Functions

Main Protection Features

Troubleshooting

Indoor Unit Error Display

Maps indoor unit error codes (E0-E5, EC, F0-F5, P0-P4) to specific faults.

Outdoor Unit Error Display

Interprets outdoor unit status lights for normal, standby, and error conditions.

Specific Error Diagnosis and Solutions

Provides diagnostic procedures and solutions for various error codes (E0-P4, E2).

Component Checks

Temperature Sensor Checking

Compressor Checking

IPM Continuity Check

Indoor AC Fan Motor Check

Disassembly Instructions

Indoor Unit Disassembly

Outdoor Unit Disassembly