Toshiba RAV-SM2244AT7 Installation Manual page 14

Digital Inverter
Refrigerant Pipe Length
Simultaneous twin, triple
Total length
Outdoor • 1 + 2
unit
• 1 + 3
• 1 + 4
Maximum
SM2244
SM2804
Outdoor
unit
SM2244
SM2804
Figure of Simultaneous twin
Outdoor Unit
Simultaneous double twin
Total length
• 1 + 2 + 4
Outdoor
• 1 + 2 + 5
unit
• 1 + 3 + 6
• 1 + 3 + 7
Maximum
SM2244
SM2804
Outdoor
unit
SM2244
SM2804
EN
Allowable pipe length (m)
Branch piping
• 2
• 3
• 4
Maximum
70 20
70 20
Main pipe
Gas side Liquid side
Ø28.6 Ø12.7
Ø28.6 Ø12.7
Indoor Unit
Indoor Unit
2 3
1
Allowable pipe length (m)
Branch
piping
• 4
• 5
• 6
• 7
Maximum
70 15
70 15
Main pipe
Gas side Liquid side
Ø28.6 Ø12.7
Ø28.6 Ø12.7
Figure of Simultaneous double twin
Indoor Unit
Outdoor Unit
4
Branch piping
• 3 – 2
• 4 – 2
• 4 – 3
Maximum
10
10
Pipe diameter (mm)
Gas side
Ø15.9
Ø15.9
Outdoor Unit
Branch piping
Branch
• ( 4 + 2) – ( 5 + 2)
piping
• ( 4 + 2) – ( 6 + 3)
• 4 + 2
• ( 4 + 2) – ( 7 + 3)
• 5 + 2
• ( 5 + 2) – ( 6 + 3)
• 6 + 3
• ( 5 + 2) – ( 7 + 3)
• 7 + 3
• ( 6 + 3) – ( 7 + 3)
Maximum
Maximum
20
20
Pipe diameter (mm)
Gas side
2, 3: Ø15.9
4, 5, 6, 7: Ø12.7
2 to 7: Ø15.9
Indoor Unit Indoor Unit
5 6
2
1
13
Height difference (m)
Indoor-outdoor H
Indoor unit: Outdoor unit:
Upper Upper
30 30
30 30
Branch piping
Liquid side
Ø9.5
Ø9.5
Figure of Simultaneous triple
Indoor Unit
Indoor Unit
4
2
1
Height difference (m)
Indoor-outdoor H
Indoor
unit:
Upper
6 30
6 30
Branch piping
Liquid side
2, 3: Ø9.5
4, 5, 6, 7: Ø6.4
2 to 7: Ø9.5
Indoor Unit
7
3
Indoor-indoor
(Δh)
0.5
0.5
Number of bent
portions
10 or less
10 or less
Indoor Unit
3
Indoor-
Outdoor
indoor
unit:
(Δh)
Upper
30 0.5
30 0.5
Number of bent
portions
10 or less
10 or less