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Midea MDV-500(18)W/D2DN1(B) User Manual

Midea MDV-500(18)W/D2DN1(B)
164 pages
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Midea Commercial Air Conditioner
R410A All DC Inverter VRF V4 Plus S Series
220V~60Hz
Technical Service Manual

Table of Contents

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Midea MDV-500(18)W/D2DN1(B) Specifications

General IconGeneral
BrandMidea
ModelMDV-500(18)W/D2DN1(B)
CategoryAir Conditioner
LanguageEnglish

Summary

Part 3 Specifications & Performances

5. Wiring diagram and field wiring

Shows the electrical wiring diagrams for outdoor units and field wiring connections.

7. Capacity tables

Provides detailed cooling and heating capacity tables for various operating conditions.

Part 4 Installation

1. Units installation

Details the process of installing indoor and outdoor units, including procedures and precautions.

1.4 Foundation for installation

Details requirements for a solid foundation for outdoor units to prevent sinking and noise.

3. Refrigerant piping selection

Specifies the permitted values for refrigerant piping lengths, including total, single, and branch joint lengths.

4. Refrigerant pipe installation

Covers basic requirements, operation procedures, principles, cautions, and support for refrigerant piping.

5. Drainage pipe engineering

Covers installation essentials, principles, requirements, and advantages/disadvantages of drainage pipe configurations.

8. Brazing cautions

Cautions for brazing, emphasizing nitrogen purging, avoiding anti-oxidants and flux, and proper welding techniques.

10. Gas tightness test

Covers the purpose, operation tips, procedure, and air tightness test for refrigerant piping.

11. Vacuum Drying

Explains the purpose, methods, and procedures for vacuum drying the refrigerant system.

12. Additional refrigerant charge

Details the operation procedures, steps, and cautions for recharging refrigerant.

13. Electrical wiring installation

Covers wiring terminal instructions, electric characteristics, and power supply wiring for outdoor and indoor units.

14. Running test

Provides inspection and confirmation steps before commissioning and procedures for trial runs.

Part 5 Troubleshooting

4.1 E0: Communication error between outdoor units

Troubleshooting steps for communication errors between outdoor units, covering address settings and wiring.

4.2 E2: Communication error between indoor units and the master unit

Troubleshooting steps for communication errors between indoor and outdoor units, addressing short circuits, wiring, and interference.

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