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Midea MI2-71Q4DHN1 User Manual

Midea MI2-71Q4DHN1
25 pages
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Four-way Cassette
The 2nd generation DC VRF indoor unit
Installation and Operation Manual
Original instructions
Thank you very much for purchasing our air conditioner.
Before using your air conditioner, please read this manual carefully and keep it for future reference.
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Midea MI2-71Q4DHN1 Specifications

General IconGeneral
BrandMidea
ModelMI2-71Q4DHN1
CategoryAir Conditioner
LanguageEnglish

Summary

Installation Manual

Safety Precautions

General safety guidelines and warnings for installation and operation.

Before Installation

Choosing an Installation Site

Criteria for selecting a suitable location for the indoor unit.

Indoor Unit Installation

Procedures and methods for installing the indoor unit.

Accessories

Accessories to purchase locally

List of optional accessories that need to be purchased separately.

Indoor Unit Installation

Installation with Lifting Bolts

Method for installing the indoor unit using lifting bolts.

Installation Sequences

Procedures for installing the unit in existing and new ceilings.

Panel Installation Procedures

Steps for removing and installing the unit's front panel and cover.

Air Duct Installation

Air Duct Installation Dimensions

Schematic and dimensions for air duct connections.

Refrigerant Piping Installation

Piping Requirements and Layout

Specifications for piping length, material, size, and routing.

Piping Installation and Testing

Steps for installing piping, testing, insulating, vacuuming, and charging.

Water Discharge Piping Installation

Installation and Testing

Procedures for installing the drain piping and performing a discharge test.

Electrical Wiring

Power and Wiring Specifications

Guidelines for power cord connection and electrical wiring specifications.

Communication and Connection Handling

Instructions for communication wiring and securing connection points.

On-site Configuration

Capacity and Address Settings

Setting unit capacity and unique addresses for system configuration.

DIP Switch Settings

Detailed DIP switch configurations for various operational functions.

Test Run

Preparation and Execution

Pre-test checks and procedures for operating and verifying the unit.

Display Panel Explanation

Display Panel Output

Explanation of display panel outputs during normal operation.

Operations and Performance

Operating Temperature Range

Stable operating temperature ranges for cooling and heating modes.

Adjusting Air Flow Direction

Air Filter Cleaning

Step-by-step guide for removing, cleaning, and reinstalling air filters.

Maintenance

Long-Term Storage Maintenance

Procedures for preparing the unit for long-term storage.

Symptoms That Are Not Faults

Common Non-Fault Symptoms

Explanation of common symptoms like delayed start or white mist.

Troubleshooting

General and Unit Troubleshooting

Initial steps for error resolution and troubleshooting unit issues.

Remote Controller and Error Codes

Troubleshooting the remote controller and understanding error codes.

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