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 Outdoor Units ................................................................................................................ 3
2.3 Combinations of Indoor and Outdoor Units ............................................................................................ 3
2.4 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 ..................................................................................................................... 10
4 Installation Instruction ....................................................................................................... 11
4.1 ODU Foundation ....................................................................................................................................... 11
4.2 Physical Dimension of the Outdoor Unit and Mounting Hole ............................................................. 12
4.3 Connection Pipe ....................................................................................................................................... 13
4.4 Installation of the Connection Pipe ........................................................................................................ 20
4.5 Air Purging and Refrigerant Charge ...................................................................................................... 24
4.6 Electric Wiring ............................................................................................................................................27
4.7 System Communication........................................................................................................................... 30
4.8 Connection Method and Steps for System Communication .............................................................. 34
4.9 External Electrical Wiring Diagram ........................................................................................................ 41
4.10 Attention before operation ..................................................................................................................... 43
5 Check Items after Installation and Trial Run ................................................................... 45
5.1 Check Items after Installation ................................................................................................................. 45
5.2 Trial Run ..................................................................................................................................................... 45
6 Common Malfunctions and Troubleshooting ................................................................. 55
7 Error Indication ................................................................................................................... 57
8 Maintenance and Care ....................................................................................................... 62
8.1 Outdoor Heat Exchanger ......................................................................................................................... 62
8.2 Drain Pipe .................................................................................................................................................. 62
8.3 Notice before Seasonal Use ................................................................................................................... 62
8.4 Maintenance after Seasonal Use ........................................................................................................... 62
8.5 Parts Replacement ................................................................................................................................... 62
9 After-sales Service .............................................................................................................. 63
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