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Midea MH-SU65-RN8L

Midea MH-SU65-RN8L
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INSTALLATION INSTRUCTIONS
DC INVERTER AIR-COOLED CHILLER
AIR CONDITIONER OUTDOOR UNIT
R32
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The figure shown in this manual is for reference only and may be slightly different from the actual product.
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Midea MH-SU65-RN8L Specifications

General IconGeneral
BrandMidea
ModelMH-SU65-RN8L
CategoryChiller
LanguageEnglish

Summary

ACCESSORIES

1 INTRODUCTION

1.1 Use conditions of the unit

Specifies operating conditions and temperature ranges for the unit's performance.

2 SAFETY CONSIDERATION

3 BEFORE INSTALLATION

3.1 Handling of the unit

Provides guidelines for safely moving and handling the unit during installation.

4 IMPORTANT INFORMATION ON REFRIGERANT

5 SELECTION OF INSTALLATION SITE

6 PRECAUTIONS ON INSTALLATION

6.1 Outline dimensional drawing

Shows the physical dimensions of the unit for installation planning.

6.2 Requirements of arrangement space of the unit

Specifies the necessary clearance and spacing around the unit for proper airflow and access.

6.3 Installation foundation

Details the requirements and methods for creating a stable and suitable foundation for the unit.

6.4 Installation of damping devices

Explains how to install vibration damping devices between the unit and its foundation.

6.5 Installation of device to prevent snow build-up and strong breeze

Offers measures to protect the unit from snow accumulation and strong winds.

7 CONNECTION DRAWING OF PIPELINE SYSTEM

8 OVERVIEW OF THE UNIT

8.1 Main parts of the uint

Identifies and lists the main components of the unit with diagrams.

8.2 Opening the uint

Explains how to access different compartments of the unit by opening its doors.

8.3 Outdoor unit PCBS

Details the Printed Circuit Boards (PCBs) located in the outdoor unit.

8.4 Electric wiring

8.4.1 Electric wiring

Provides essential safety cautions and general guidelines for wiring the unit.

8.4.4 Electrical wiring percautions

Outlines specific precautions for electrical wiring, including standards and cable types.

8.4.5 Power supply specification

Details the power supply requirements, including voltage, current, fuse, and wiring specifications.

8.4.6 Requirements for power supply wiring

Illustrates correct and incorrect methods for power supply wiring and grounding.

8.4.7 Requirements for power cord connection

Shows the proper and improper ways to connect the power cord to the unit.

8.4.8 Function of terminals

Explains the function of various terminals for communication and control.

8.4.9 Wiring of ONOFF weak electric port

Details how to wire the remote ON/OFF control function for the unit.

8.4.11 Wiring of TEMP-SWITCH weak electric port

Describes wiring for selecting target water temperatures via wired controller.

8.4.12 Wiring of ALARM port

Explains how to connect devices to the ALARM ports for abnormal operation indication.

8.4.13 Control system and installation precautions

Provides precautions for control system wiring, shielding, and layout.

8.4.14 Wiring instances

Illustrates typical wiring configurations for networked units.

8.5 Water system installation

8.5.1 Basic requirements of connection of chilled water pipes

Outlines fundamental requirements for connecting chilled water pipelines.

8.5.2 Connection mode of pipe

Details the pipe connection methods and specifications for different models.

8.5.3 Design of the store tank in the system

Guides on designing and installing a store tank for system water content requirements.

8.5.4 Minimum chilled water flow

Specifies the minimum required chilled water flow rate.

8.5.5 Maximum chilled water flow

Details the maximum allowable chilled water flow rate.

8.5.7 Selection and installation of the pump

Covers the selection criteria and installation procedures for the system pump.

8.5.8 Water quality

Discusses the importance of water quality and necessary treatments for the system.

8.5.9 Installation of multi-module water system pipeline

Provides guidance for installing multi-module water systems and pipe diameters.

8.5.10 Installation of single or multiple water pumps

Details DIP switch settings and installation for single/multiple water pumps.

9 STRAT-UP AND CONFIGRUATION

9.1 Initial start-up at low outdoor ambient temperatures

Advises on gradual heating during initial startup at low temperatures to prevent floor damage.

9.2 Points for attention prior to trial run

Lists crucial checks and preparations before conducting the trial run.

10 TEST RUN AND FINAL CHECK

10.1 Check item table after installation

A checklist of items to verify after the unit has been installed.

10.2 Trial run

Describes the process and duration for conducting the trial run of the unit.

11 MAINTENANCE AND UPKEEP

11.1 Failure information and code

Lists failure codes displayed by the unit and their meanings.

11.2 Digital display of main board

Explains the information displayed on the main board's digital display.

11.3 Care and maintenance

Provides recommendations for regular care and maintenance of the unit.

11.4 Removing scale

Details the process for removing scale from the water-side heat exchanger.

11.5 Winter shutdown

Guides on procedures for shutting down the unit during winter to prevent freezing.

11.6 Replacing parts

Specifies using only manufacturer-provided parts for replacements.

11.7 First startup after shutdown

Outlines preparations for restarting the unit after a long shutdown period.

11.8 Refrigeration system

Covers checks, leak detection, and refrigerant injection for the system.

11.9 Disassembling compressor

Provides steps for safely disassembling the compressor.

11.10 Auxiliary electric heater

Discusses the use of an auxiliary electric heater for low temperatures.

11.11 System antifreezing

Emphasizes the importance of antifreezing measures to prevent damage.

11.12 Replacement of safety valve

Details the procedure for replacing the unit's safety valve.

11.13 INFORMATION SERVICING

Provides essential information and safety checks for servicing the refrigeration system.

12 APPLICABLE MODELS AND MAIN PARAMETERS

RECORD TABLE OF TEST RUN AND MAINTENANCE

13 INFORMATION REQUIREMENTS

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