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Midea MFGA-24CRN1-Q User Manual

Midea MFGA-24CRN1-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 MFGA-24CRN1-Q Specifications

General IconGeneral
Refrigerant TypeR410A
TypeSplit System
Power Supply220-240V, 50Hz
Operating Temperature (Cooling)18-43°C
Cooling Capacity24000 BTU/h

Summary

Four-way Cassette Type (Compact) Indoor Unit

Super-slim Cassette Type Indoor Unit

A5 Duct Type Indoor Unit

A6 Duct Type Indoor Unit

High Static Pressure Duct Type Indoor Unit

Ceiling & Floor Type Indoor Unit

Field Wiring

Shows wiring diagrams for connecting the indoor unit to the outdoor unit and power supply.

GA Floor-standing Type Indoor Unit

M Floor-standing Type Indoor Unit

J2 Floor-standing Type Indoor Unit

S2 Floor-standing Type Indoor Unit

S4 Floor-standing Type Indoor Unit

E2 Floor-standing Type Indoor Unit

Outdoor Units

Wiring Diagrams

Shows wiring diagrams for outdoor unit components like fans, compressors, and control boards.

Electric Characteristics

Lists electrical specifications like voltage, frequency, and maximum fuse amps for outdoor units.

Installation

Outdoor unit installation - Side Discharge Unit

Provides instructions for lifting, fixing, and securing the outdoor unit during installation.

Refrigerant pipe installation

Details steps for choosing pipe size, measuring, cutting, flaring, and insulating copper pipes.

Drainage pipe installation

Outlines key principles for installing drainage pipes, including slope and diameter.

Vacuum Drying and Leakage Checking

Details methods for ordinary and special vacuum drying procedures, including duration and checks.

Additional refrigerant charge

Details the process for adding refrigerant after vacuum drying, based on pipe dimensions and length.

Engineering of electrical wiring

Emphasizes key points for safe and compliant electrical wiring installation by qualified personnel.

Test operation

Details the specific checks to perform on both indoor and outdoor units during the test operation.

Electrical Control System

Electrical Control Function

Explains compressor restart delay, sensor protection, phase check, low pressure, and over-current protections.

Troubleshooting

Details LED indications and digital displays for indoor unit malfunctions and protections.

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