Gree CN851W1020 Manuals

Manuals and User Guides for Gree CN851W1020. We have 1 Gree CN851W1020 manual available for free PDF download: Service Manual

Gree CN851W1020 Service Manual (233 pages)

DC INVERTER MULTI VRF

Brand: Gree | Category: Inverter | Size: 16 MB

Table of Contents
2
Product

6
- Models List
  
  7
  - 1�1 Outdoor Unit
    7
- Nomenclature
  
  10
  - 2�1 Nomenclature of Outdoor Unit
    10
- Function
  
  10
- Product Data
  
  11
  - 4�1 Product Data of Outdoor Unit
    11
- Piping Diagram
  
  21
  - 5�1 Piping Diagram of GMV-Pdm224W/Nab-M,GMV-Pdm280W/Nab-M
    21
Control

24
Installation

92
Engineering Debugging

146
- Necessity of Engineering Debugging for Vrf Units
  
  147
- Iles and Tools for Engineering Debugging
  
  147
  - 2�1 Tools
    147
  - 2�2 Debugging Files
    147
- Steps of Engineering Debugging
  
  147
  - 3�1 Preparation before Debugging
    147
  - 3�2 Inspection before Debugging
    148
  - 3�3 Debugging
    153
  - 3�4 Debugging of Cooling Mode
    154
  - 3�5 Running of Heating Mode
    157
- 4� Main Parameters and Reference Valves for Debugging
  
  158
- Common Troubles During Debugging
  
  160
  - 5�1 Communication
    160
- Portable Debugger
  
  169
  - 6�1� Function Introduction
    169
  - 6�2 Display and Button
    169
  - 6�3 Debugger Connection
    170
Maintenance

171
- Trouble Shooting
  
  172
- Flow Chart of Troubleshooting
  
  177
  - 2�1 High-Pressure Protection
    177
  - 2�2 Low-Pressure Protection
    179
  - 2�3 Exhaust Temperature Protection
    181
  - 2�4 Communication Failure
    182
  - 2�5 Temperature Sensor Trouble
    183
  - 2�6 Sensor Trouble
    184
  - 2�7 no Energization to the Unit and Mainboard
    185
  - 2�8 the AC Contactor Does Not Pull in
    186
  - 2�9 Typical Troubleshooting (E5) for DC Frequency Conversion Drive Board
    187
  - 2�10 E5 Protection
    192
  - 2�11 PFC Protection
    194
  - 2�12 IPM Protecion
    195
  - 2�13 Trip
    196
  - 2�14 Superheat Protection of Radiator
    197
  - 2�15 DC Overvoltage Protection
    198
- Power Distribution
  
  199
- Table of the Resistances of Common Temperature Sensors
  
  202
  - 15Kω
    202
  - 20Kω
    204
  - 50Kω
    206
- Features of the Hight/Low Pressure Sensors
  
  208
  - 5�1 Features of the High Pressure Sensors (R410A)
    208
  - 5�2 Features of the Low Pressure Sensors (R410A)
    209
- After-Sales Emergency Measures
  
  210
- Disassembly and Assembly Procedure of Main Parts
  
  211
  - 7� 1 Outdoor Unit
    211
- Exploded Views and Part List
  
  220
  - 8�1 Outdoor Unit
    220

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Gree CN851W1020 Manuals

Gree CN851W1020 Service Manual (233 pages)

Table of Contents

Product

Models List

Nomenclature

Function

Product Data

Piping Diagram

Control

Control of the Unit

Wiredless Remote Controller

Wired Remote Controller

Regional Controller

Smart Zone Controller

Centralized Controller

Monitoring Software

Detection Control Board

Installation

Precautions for Installation

Flow Chart of Installation

Installation of Outdoor Unit

Installation Requirements of Refrigerant Piping

Installation of Refrigerant Piping

Installation of Condensate Pipe

Electrical Installation

Engineering Debugging

Necessity of Engineering Debugging for Vrf Units

Iles and Tools for Engineering Debugging

Steps of Engineering Debugging

4� Main Parameters and Reference Valves for Debugging

Common Troubles During Debugging

Portable Debugger

Maintenance

Trouble Shooting

Flow Chart of Troubleshooting

Power Distribution

Table of the Resistances of Common Temperature Sensors

Features of the Hight/Low Pressure Sensors

After-Sales Emergency Measures

Disassembly and Assembly Procedure of Main Parts

Exploded Views and Part List

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