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Midea MEHS-22NIH2

Midea MEHS-22NIH2
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Revision A: 1403100001, Content updated.
Model Numbers:
MEHS-09NiH2/MCHS-09NiH2 MEHS-09NIH1/ MCHS-09NiH1 MEHS-12NIH2/ MCHS-12NiH2
MEHS-12NIH1/MCHS-12NiH1 MEHS-18NIH2/ MCHS-18NiH2 MEHS-22NIH2/ MCHS-22NiH2
nEOLA MOnO SpLIt dC InVERtER
AIR COndItIOnER
SERVICE MAnUAL
Mono DC
Table of Contents
1. Precaution
2. Dimension
3. Refrigerant Cycle Diagram
4. Wiring Diagram
5. Installation Details
6. Operation Characteristics
7. Electronic Function
8. Troubleshooting
9. 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.

Questions and Answers:

Midea MEHS-22NIH2 Specifications

General IconGeneral
RefrigerantR410A
TypeSplit
InverterYes
Power Supply220-240V, 50Hz
Operating Temperature (Cooling)18°C to 43°C
Operating Temperature (Heating)-7°C to 24°C
Cooling Capacity22000 BTU/h

Summary

Precaution

Safety Precaution

General safety guidelines to prevent injury and property damage.

Warning

Critical warnings and precautions related to installation, operation, and potential hazards.

Refrigerant Cycle Diagram

Wiring Diagram

Installation Details

Refrigerant charging

Electronic Function

Troubleshooting

Indoor Unit Error Display

Lists error codes (E0-E5, EC, P0-P4) displayed on the indoor unit and their meanings.

Diagnosis and Solution

Provides diagnostic steps and solutions for specific error codes like E0/F4 and E1.

Refrigerant Leakage Detection diagnosis and solution(EC)

Troubleshooting guide for EC error related to refrigerant leakage detection.

IPM malfunction or IGBT over-strong current protection diagnosis and solution(P0)

Diagnostic steps for P0 error related to IPM or IGBT over-current protection.

Over voltage or too low voltage protection diagnosis and solution(P1)

Troubleshooting guide for P1 error related to voltage protection issues.

High temperature protection of compressor top diagnosis and solution(P2)

Diagnostic steps for P2 error related to compressor top high-temperature protection.

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