Gree CN850W0520 Air Conditioner Repair Manuals

Manuals and User Guides for Gree CN850W0520 Air Conditioner Repair. We have 1 Gree CN850W0520 Air Conditioner Repair manual available for free PDF download: Service Manual

Gree CN850W0520 Service Manual

Gree CN850W0520 Service Manual (174 pages)

DC INVERTER VRF SYSTEM SERVICE MANUAL(R410A)

Brand: Gree | Category: Air Conditioner | Size: 17 MB

Table of Contents

Table of Contents
2
Product List
5
- Nomenclature of Outdoor Units
  7
Product Features
7
- General Introduction
  7
Specifications
8
- Intelligent PID Capacity Regulation
  8
- Complete Protection
  8
Operation Range
12
Product Capacity Correction
12
Principal of Operation
14
Units' Control
19
- Schematic Diagram of Units' Control
  19
- Interpretation on the Schematic Diagram
  19
Remote Monitoring System
19
- General Introduction
  19
Monitoring Software
20
- Function Introduction
  20
- Connection of Computer and Units
  20
- Parts Introduction
  21
  - List of Parts
    21
  - Gree USB Data Converter
    21
  - Functions Introduction
    21
  - Operation Instruction
    22
  - Installation Notice
    23
  - Communication Board
    23
  - Communication Cord
    23
  - USB Wire
    23
  - Software Introduction
    24
  - One-Button Commissioning
    24
  - Comprehensive Monitoring
    24
  - Real-Time Control
    24
  - Software Installation
    25
  - Installation Requirements
    25
  - Computer Configuration
    25
  - CD Playing
    25
  - Installation Flowchart
    26
  - Button Graphics
    26
  - Installation Process
    26
  - Install .Net Framework 4.0
    26
  - Extracting Files
    27
  - Install Gree USB Data Converter
    36
  - Project Debugging
    46
  - Other Functions
    51
  - Capture Screen
    51
  - Search for Database Folder
    52
  - Usage of USB Converter
    55
  - Usage of Converter
    55
  - Usage of Converter Configuring Software
    60
  - Ex-Factory Defaulted Baud Rate: (Unit: Bps)
    60
  - Baud Rate Look-Up Table for RS485 Interface (Unit: Bps)
    60
  - Baud Rate Look-Up Table for HBS Interface (Unit: Bps)
    61
  - Baud Rate Look-Up Table of CAN Interface (Unit: Bps)
    61
Engineering Installation Preparation and Notice
65
- Installation Key Points and Importance
  65
Installation Materials Selection
66
- Refrigerant Piping
  66
  - Material Requirement
    66
  - Appearance Requirement
    66
- Condensate Water Pipe
  67
- Insulation Material
  67
- Communication Cable and Control Cable
  67
- Power Cable
  68
- Hanger Rod and Support
  68
Installation of Outdoor Unit
68
Debugging &Maintenance

72
- Debugging of Unit
  73
- Troubleshooting
  92
- Power Distribution of Unit
  102
  - Main Electric Parts
    102
  - Circuit Diagram
    103
    
    Circuit Diagram of Outdoor Unit
    103
    
    Gmv-141Wl/C-T
    104
    
    Gmv-120Wl/A-T, Gmv-140Wl/A-T, Gmv-160Wl/A-T
    104
- Removal of Parts
  108
  - Key Parts
    108
  - Removal of Key Parts
    110
    
    Removal Operation for Panel
    110
    
    Removal Operation for Blade
    111
    
    Removal Operation of Compressor
    113
    
    Removal Operation for 4-Way Valve
    117
    
    Remival Operation for Eletronic Expansion Valve
    117
    
    Removal Operation of Gas Liquid Separator
    118
    
    Removal Operation for Plate Heat Exchanger
    119
- Common Maintenance
  144
  - Vacuum Drying for the System
    144
    
    Selection Requirement for the Vaccum Pump
    144
    
    Operation Procedure and Notices for Vacuum Drying
    144
  - Fill and Charge Refrigerant
    145
    
    Filling Procedure of Regrigerant
    145
    
    Calculation Example
    145
    
    Total Length of each Liquid Pipe
    146
    
    Calculation of the Amount of Additional Refrigerant
    146
  - Airtightness Test
    149
    
    Importance of Airtightness Test
    149
    
    Operation Procedure for the Airtightness Test
    149
    
    Cautions
    149
  - Exploed View for Outdoor Unit and Parts' List
    150
  - Gmv-140Wl/C-X Gmv-160Wl/C-X
    165
  - Gmv-H224Wl/A-X
    167
  - Gmv-H280Wl/A-X
    169
  - Gmv-H280Wl/A-X
    170
  - Gmv-H335Wl/A-X
    171
  - Gmv-335Wl/C-X
    171

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