1. System design.............................................................................................06-1
1-1. Refrigerant system .........................................................................................................06-1
1-2. VRF network system ......................................................................................................06-4
1-3. Installation place...........................................................................................................06-11
2. Piping design.............................................................................................06-14
2-2. Piping limitation ............................................................................................................06-17
2-3. Pipe size.......................................................................................................................06-19
3. Piping connection .....................................................................................06-33
3-2. EV kit ............................................................................................................................06-38
3-3. Separation tube ............................................................................................................06-42
3-4. Header..........................................................................................................................06-46
4. Wiring design ............................................................................................06-49
4-1. Electrical wiring.............................................................................................................06-49
4-2. Power supply cable ......................................................................................................06-51
4-3. Transmission cable.......................................................................................................06-55
4-4. Controller cable ............................................................................................................06-63
5. Drain connection .......................................................................................06-65
5-1. Outdoor unit..................................................................................................................06-65
5-2. Indoor unit ....................................................................................................................06-66
CONTENTS
6. SYSTEM DESIGN