Gree LSQWRF35VM/NaA-M Service Manual page 3

2.5.2 Network of the long-distance monitoring system ...........................21
2.5.3 Hardware ......................................................................................22
2.5.4 Model selection instructions ..........................................................23
3 Unit installation ............................................................................................26
3.1 Installation flowchart .............................................................................26
3.2 Preparations before installation ............................................................27
3.2.1 Precautions for installation ............................................................27
3.2.2 Importance of installation ..............................................................28
3.3 Installation instructions .........................................................................29
3.3.1 Outline dimensions .......................................................................29
3.3.2 Precautions for installation ............................................................33
3.3.3 Installation environment ................................................................33
3.3.4 Installation and service space .......................................................33
3.3.5 Installation foundation ...................................................................34
3.3.6 Handling and lifting .......................................................................34
3.3.7 Placement of the main unit ............................................................35
3.4 Piping and insulation .............................................................................35
3.4.1 Installation of the water system .....................................................35
3.4.2 Requirements on piping ................................................................37
3.4.3 Installation of the expansion tank ..................................................39
3.4.4 Installation of condensate pipes ....................................................40
3.5 Electrical connection .............................................................................42
3.5.1 Safety precautions ........................................................................42
3.5.2 External connection ......................................................................42
3.5.3 Specification of power supply ........................................................47
3.5.4 Wiring of the electric control cabinet .............................................47
3.5.5 Field wiring ....................................................................................49
3.5.6 Networking and wiring between units ............................................51
3.5.7 Electric wiring digram ....................................................................54
3.5.8 Jumpers ........................................................................................61
4 Test operation, troubleshooting and maintenance .......................................63