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Midea M-Thermal Series User Manual

Midea M-Thermal Series
86 pages
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M-Thermal Split Series
CommercialAirConditioners
R32
Service
Manual
Midea CAC Confidential
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Midea M-Thermal Series Specifications

General IconGeneral
BrandMidea
ModelM-Thermal Series
CategoryAir Conditioner
LanguageEnglish

Summary

Part 1 General Information

1 Unit Capacities

Details outdoor unit and hydronic box model capacities for different kW ranges.

2 External Appearance

Shows visual representation of outdoor units and hydronic boxes.

Part 2 Component Layout and Refrigerant Circuits

1 Layout of Functional Components

Identifies key components within the outdoor and hydronic units.

2 Piping Diagrams

Illustrates refrigerant and water piping configurations for different system parts.

3 Refrigerant Flow Diagrams

Depicts refrigerant flow during heating/hot water and cooling/defrosting operations.

Part 3 Control

1 Stop Operation

Explains conditions under which the system stops operation.

2 Standby Control

Details controls and operations when the unit is in standby mode.

3 Startup Control

Describes the processes and parameters for system startup.

4 Normal Operation Control

Outlines how components are controlled during normal heating/cooling/DHW operations.

5 Protection Control

Details various protection mechanisms to prevent system damage.

6 Special Control

Covers specific operational modes like oil return, defrosting, and force cooling.

7 Role of Temperature Sensors in Control Functions

Explains the function and location of temperature sensors in system control.

Part 4 Diagnosis and Troubleshooting

1 Electric Control Box Layout

Shows the internal layout of the electric control boxes for outdoor and hydronic units.

2 PCBs

Identifies and describes the main PCBs used in the hydronic and outdoor units.

3 Error Code Table

Lists error codes, their content, display locations, and relevant remarks for diagnosis.

4 Troubleshooting

Provides general warnings and specific troubleshooting procedures for common error codes.

5 Appendix to Part 4

Contains detailed sensor resistance characteristics for diagnostic purposes.

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