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Midea MTI-18CWN1-Q User Manual

Midea MTI-18CWN1-Q
264 pages
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Contents i
50Hz R410A ON/OFF SERIES
Service Manual 2017

Table of Contents

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Midea MTI-18CWN1-Q Specifications

General IconGeneral
BrandMidea
ModelMTI-18CWN1-Q
CategoryAir Conditioner
LanguageEnglish

Summary

Part 2 Indoor Units

Four-way Cassette Wiring Diagrams

Illustrates electrical connections for specific models.

Four-way Cassette Field Wiring

Shows wiring diagrams for connecting indoor and outdoor units.

Super-slim Cassette Wiring Diagrams

Illustrates electrical connections for specific models.

Super-slim Cassette Field Wiring

Shows wiring diagrams for connecting indoor and outdoor units.

A5 Duct Wiring Diagrams

Illustrates electrical connections for specific models.

A5 Duct Field Wiring

Shows wiring diagrams for connecting indoor and outdoor units.

A6 Duct Wiring Diagrams

Illustrates electrical connections for specific models.

A6 Duct Field Wiring

Shows wiring diagrams for connecting indoor and outdoor units.

Ceiling & Floor Wiring Diagram

Illustrates electrical connections for specific models.

Ceiling & Floor Field Wiring

Shows wiring diagrams for connecting indoor and outdoor units.

GA Floor Wiring Diagrams

Illustrates electrical connections for specific models.

M Floor Wiring Diagrams

Illustrates electrical connections for specific models.

J2 Floor Wiring Diagrams

Illustrates electrical connections for specific models.

S2 Floor Wiring Diagrams

Illustrates electrical connections for specific models.

S4 Floor Wiring Diagrams

Illustrates electrical connections for specific models.

E2 Floor Wiring Diagrams

Illustrates electrical connections for specific models.

Part 3 Outdoor Units

Outdoor Unit Piping Diagrams

Illustrates refrigerant pipe layouts for different unit models.

Outdoor Unit Wiring Diagrams

Shows electrical connections for outdoor units.

Part 4 Installation

Installation Procedure

Outlines the step-by-step process for installing the air conditioning system.

Location Selection

Guidelines for choosing optimal indoor and outdoor unit installation sites.

Indoor Unit Installation

Detailed instructions for installing indoor units.

Compact Cassette Installation

Specific steps for installing compact cassette indoor units.

Compact Cassette Service Space

Specifies required clearances for compact cassette indoor units.

Compact Cassette Mounting

Details the process for mounting compact cassette units.

Super-slim Cassette Installation

Specific steps for installing super-slim cassette indoor units.

Super-slim Cassette Service Space

Specifies required clearances for super-slim cassette indoor units.

Super-slim Cassette Mounting

Details the process for mounting super-slim cassette units.

A5 Duct Unit Mounting

Details the process for mounting A5 duct units.

A6 Duct Unit Mounting

Details the process for mounting A6 duct units.

Ceiling & Floor Unit Mounting

Details the process for mounting ceiling & floor units.

GA Floor Installation Steps

Details the installation steps for GA floor standing units.

M & J2 Floor Installation Steps

Details the installation steps for M & J2 floor standing units.

S2 Floor Installation Steps

Details the installation steps for S2 floor standing units.

S4 Floor Installation Steps

Details the installation steps for S4 floor standing units.

E2 Floor Installation Steps

Details the installation steps for E2 floor standing units.

Outdoor Unit Installation (Side Discharge Unit)

Instructions for installing outdoor units, focusing on side discharge models.

Outdoor Unit Installation Steps

Steps for lifting, positioning, and securing the outdoor unit.

Refrigerant Pipe Installation

Guidance on pipe length, height drop, connecting, and flaring pipes.

Refrigerant Pipe Length and Height Drop

Specifies allowable pipe lengths and height differences.

Refrigerant Pipe Connection Procedure

Step-by-step guide for connecting refrigerant pipes.

Copper Pipe Insulation

Instructions for insulating copper pipes.

Pipe Flaring

Detailed guide on flaring refrigerant pipes with dimensions.

Drainage Pipe Installation

Instructions for installing drainage pipes, including slope and selection.

Drainage Pipe Installation Principle

Basic principles for drainage pipe installation.

Drainage Pipe Installation Key Points

Important considerations for pipeline routing and selection.

Drainage Test

Procedures for testing water leakage and discharge.

Water Leakage Test

Steps to check for leaks after pipe construction.

Water Discharge Test

Procedures to verify proper water drainage functionality.

Vacuum Drying and Leakage Checking

Procedures for removing moisture and air from the system and checking for leaks.

Purpose of Vacuum Drying

Explains the importance of vacuum drying for system performance.

Vacuum Drying Operation Procedure

Detailed steps for performing ordinary and special vacuum drying.

Additional Refrigerant Charge

Instructions for calculating and adding refrigerant based on pipe length.

Engineering of Insulation

Guidance on insulating refrigerant pipes and drainage pipes.

Refrigerant Pipe Insulation

Procedures and purpose of insulating refrigerant pipes.

Engineering of Electrical Wiring

Highlights for correct electrical wiring installation by qualified personnel.

Test Operation

Procedures for performing system checks after installation.

Test Operation Completion

Emphasizes that testing occurs only after full installation.

Test Operation Pre-checks

Checklist of items to verify before starting test operation.

Test Operation Procedure

Steps for conducting the test operation in cooling mode.

Part 5 Electrical Control System

Troubleshooting

Provides guidance on diagnosing and resolving unit malfunctions.

Indoor Unit LED Malfunction Indicators

Maps LED indicators and error codes to specific malfunctions for various indoor unit types.

Typical Malfunction Troubleshooting Steps

Provides step-by-step troubleshooting guides for common unit issues.

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