Fujitsu Airstage J-IVS AJ 040LCLDH Series Design & Technical Manual page 660

1. System design.............................................................................................06-1
1-1. Refrigerant system .........................................................................................................06-1
1-2. VRF network system ......................................................................................................06-7
1-3. Installation place...........................................................................................................06-14
2. Piping design.............................................................................................06-17
2-1. Important items when using refrigerant (R410A) ..........................................................06-17
2-2. Piping limitation ............................................................................................................06-20
2-3. Pipe size.......................................................................................................................06-22
2-4. Selection of pipe heat insulating material .....................................................................06-27
2-5. Additional charge calculation ........................................................................................06-28
2-6. Piping design example .................................................................................................06-30
3. Piping connection .....................................................................................06-36
3-1. Piping to outdoor unit....................................................................................................06-38
3-2. EV kit ............................................................................................................................06-41
3-3. Separation tube ............................................................................................................06-45
3-4. Header..........................................................................................................................06-49
4. Wiring design ............................................................................................06-52
4-1. Electrical wiring.............................................................................................................06-52
4-2. Power supply cable ......................................................................................................06-54
4-3. Transmission cable.......................................................................................................06-58
4-4. Controller cable ............................................................................................................06-66
5. Drain connection .......................................................................................06-69
5-1. Outdoor unit..................................................................................................................06-69
5-2. Indoor unit ....................................................................................................................06-70
CONTENTS
6. SYSTEM DESIGN