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MrCool DIY-MULTI2-18HP230C User Manual

MrCool DIY-MULTI2-18HP230C
156 pages
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4TH GENERATION
MULTI-ZON
E
SERVICE MANUAL

Table of Contents

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MrCool DIY-MULTI2-18HP230C Specifications

General IconGeneral
BrandMrCool
ModelDIY-MULTI2-18HP230C
CategoryAir Conditioner
LanguageEnglish

Summary

Safety Precautions

Precautions

Essential guidelines to prevent injury and unit damage.

Information Servicing for Flammable Materials

Procedures for handling flammable refrigerants safely.

Specifications

Model Reference

Details of available outdoor unit models and their capacities.

Pipe Length and Drop Height

Specifications for refrigerant pipe length and elevation differences.

Indoor Units Combination

Possible combinations of indoor units for multi-zone systems.

Refrigeration Cycle Diagrams

Visual representation of refrigerant flow for different system configurations.

Electrical Wiring Diagrams

Diagrams illustrating the electrical connections for outdoor units.

Electronic Functions

Abbreviation

Glossary of abbreviations used for unit elements and sensors.

Electric Control Working Environment

Specifications for input voltage, frequency, and operating parameters.

Main Protection

Overview of protective functions like compressor delay, fan speed limits, and temperature protection.

Control and Functions

Details on capacity calculation, outdoor fan control, and four-way valve operation.

Outdoor Unit Disassembly

Outdoor Unit Table

Table correlating outdoor unit models with panel plates and PCB boards.

Dimension

Technical drawings showing the physical dimensions of various outdoor unit panel plates.

Disassembly Procedures

Step-by-step instructions for disassembling outdoor unit components like panels, fans, and motors.

Troubleshooting

Safety Caution

Critical safety warnings and precautions before performing troubleshooting.

General Troubleshooting

Common issues and error codes for indoor and outdoor units with initial solutions.

Error Display (Indoor Unit)

Codes and meanings for indoor unit operational errors and malfunctions.

Error Display (Outdoor Unit)

Codes and meanings for outdoor unit operational errors and malfunctions.

Complain Record Form

Form for documenting customer complaints and unit installation details.

Information Inquiry

Procedure for accessing and displaying unit information via the remote controller.

Outdoor Unit Point Check Function

Method to check unit status and parameters using the outdoor PCB switch.

Error Diagnosis Without Error Code

Guidance for diagnosing and resolving issues when no specific error code is displayed.

Quick Maintenance by Error Code

Table indicating required part replacements based on specific error codes.

Troubleshooting by Error Code

Detailed diagnosis and solutions for various error codes and protection modes.

Check Procedures

Step-by-step guides for checking specific components like sensors, compressor, and IPM continuity.

Appendix

Temperature Sensor Resistance Value Table

Tables correlating temperature sensor resistance with Celsius and Fahrenheit values.

Pressure On Service Port

Charts showing pressure values for different operating conditions and refrigerants.

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