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Midea HB-A100/CGN8-B - User Manual

Midea HB-A100/CGN8-B
112 pages
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M-Thermal A Series Split
Commercial Air Conditioners
R32
Service
Manual
Midea CAC
Confidential
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Midea HB-A100/CGN8-B Specifications

General IconGeneral
BrandMidea
ModelHB-A100/CGN8-B
CategoryAir Conditioner
LanguageEnglish

Summary

Service Manual

Part 1 General Information

Unit Capacities

Details the capacity ranges of outdoor units and compatible hydronic box models.

External Appearance

Shows the visual appearance of outdoor units and hydronic boxes.

Part 2 Component Layout and Refrigerant Circuits

Layout of Functional Components

Details the layout of components within outdoor units for various models.

Piping Diagrams

Illustrates the piping configurations for outdoor and hydronic units.

Refrigerant Flow Diagrams

Depicts refrigerant flow during heating/DHW and cooling/defrosting operations.

Part 3 Control

Stop Operation

Explains the conditions under which the system stops operation.

Standby Control

Details controls for crankcase heater and water pump during standby.

Startup Control

Covers compressor startup delay and startup programs based on ambient temperature.

Normal Operation Control

Describes component control during normal heating, DHW, and cooling operations.

Protection Control

Outlines protections for high/low pressure, temperature, current, and voltage.

Special Control

Details oil return, defrosting, force cooling, fast DHW, and smart grid controls.

Role of Temperature Sensors in Control Functions

Explains the function and location of various temperature sensors.

Part 4 Diagnosis and Troubleshooting

Electric Control Box Layout

Shows the layout of electrical components within control boxes for outdoor and hydronic units.

PCBs

Details the main PCBs for outdoor units and hydronic systems, including component identification.

Error Code Table

Lists error codes, serial numbers, content, and remarks for system faults.

Troubleshooting

Provides procedures for diagnosing and resolving specific error codes and issues.

Appendix to Part 4

Contains supplementary information, such as sensor resistance characteristics.

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