Table Of Contents - Gree Ultra Heat GMV Multi VRF Series Owner's Manual

1 Safety Precautions ............................................................................................................... 1
2 Product Introduction ............................................................................................................ 3
2.1 Names of Main Parts ................................................................................................................................. 3
2.2 Combinations of Indoor and Outdoor Units ............................................................................................ 3
2.3 The Range of Production Working Temperature ................................................................................... 4
3 Preparation before Installation ........................................................................................... 5
3.1 Standard Parts ............................................................................................................................................ 5
3.2 Installation Site ............................................................................................................................................ 5
3.3 Piping Work Requirements ..................................................................................................................... 11
4 Installation Instruction ....................................................................................................... 12
4.1 Physical Dimension of the Outdoor Unit and Mounting Hole ............................................................. 13
4.2 Connection Pipe ....................................................................................................................................... 14
4.3 Installation of the Connection Pipe ........................................................................................................ 20
4.4 Air Purging and Refrigerant Charge ...................................................................................................... 24
4.5 Electric Wiring ............................................................................................................................................27
4.6 System Communication ........................................................................................................................... 30
4.7 Connection Method and Steps for System Communication .............................................................. 34
4.8 External Electrical Wiring Diagram ........................................................................................................ 39
5 Check Items after Installation and Trial Run ................................................................... 43
5.1 Check Items after Installation ................................................................................................................. 43
5.2 Trial Run ..................................................................................................................................................... 43
6 Common Malfunctions and Troubleshooting ................................................................. 53
7 Error Indication ................................................................................................................... 55
8 Maintenance and Care ....................................................................................................... 58
8.1 Outdoor Heat Exchanger ......................................................................................................................... 58
8.2 Drain Pipe .................................................................................................................................................. 58
8.3 Notice before Seasonal Use ................................................................................................................... 58
8.4 Maintenance after Seasonal Use ........................................................................................................... 59
8.5 Parts Replacement ................................................................................................................................... 59
9 After-sales Service .............................................................................................................. 59
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