Midea MSMBB-12CRDN1-MP0W 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 MSMBB-12CRDN1-MP0W Specifications

General

Brand	Midea
Model	MSMBB-12CRDN1-MP0W
Category	Air Conditioner
Language	English

Summary

Precaution

Safety and Warnings

General safety instructions, installation warnings, and hazard precautions.

Part Names

Model and Component Identification

Lists unit models and identifies key parts of indoor/outdoor units.

Dimension

Unit Dimensions

Provides measurements for indoor and outdoor units.

Refrigerant Cycle Diagram

Printed Circuit Board Wiring Diagrams

Installation Details

Installation Procedures

Covers torque, cables, pipe length, first-time install, refrigerant handling, and evacuation.

Operation Characteristics

Electronic Functions

Function Overview

Covers abbreviations, display functions, protection, and operation modes.

Troubleshooting

Error Displays and Diagnosis

Lists indoor/outdoor error codes and provides diagnosis/solution steps.

Main Parts Check

Component Resistance Checks

Details checking sensors, compressor, IPM, fan motor resistance.

Pressure on Service Port

Operating Pressure Charts

Provides cooling and heating pressure-temperature data.

Disassembly Instructions

Unit Disassembly Procedures

Step-by-step guides for indoor and outdoor units.