Midea MCH2U-18PHH2 User Manual

1
MULTI OUTDOOR UNITS
SERVICE MANUAL
Multi zone
CONDENSING UNITS
Revision C: ODMI-E-1606
Model Numbers:
MCH2U-18PHH2 MCH3U-27PHH2 MCH4U-36PHH2
MCH5U-48PHH2
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.
Table of Contents
1. Indoor Unit Combination
2. Suggested Indoor Unit Model Numbers
3. Dimension Of Outdoor Unit
4. Refrigerant Cycle Diagram
5. Installation Details
6. Electronic Function
7. Wiring Diagrams
8. Trouble Shooting
9. Disassembly Instructions

Midea MCH2U-18PHH2 Specifications

General

Cooling Capacity	18000 BTU/h
Heating Capacity	18000 BTU/h
Power Supply	220-240V, 50Hz
Refrigerant	R410A
Type	Split System

Summary

1. Indoor Unit Combination

4. Installation Details

4.2 Connecting the cables

Guidelines for power and communication cable connections.

4.3 Pipe length and the elevation

4.4 First-Time Installation

Step-by-step guide for initial system setup and commissioning.

6. Electronic Function

7. Wiring Diagrams

8. Troubleshooting

8.1 Safety

Crucial safety precautions, especially regarding capacitors and high voltage.

8.2 Indoor Unit Error Display

Lists error codes and their corresponding indoor unit malfunctions.

8.3 Outdoor Unit Display

Describes outdoor unit display codes and their meanings.

8.4 Diagnosis and Solution

Guides for diagnosing and resolving common system issues.