Toshiba RAV-GM802ATW-E Installation Manual page 17

■ Refrigerant pipe length
Single
Allowable pipe length (m)
Outdoor unit Total length
Minimum
GM80,GM90
5
GM110,GM140,GM160
Pipe diameter (mm)
Outdoor unit
Gas side
GM80,GM90
15.9
GM110,GM140,GM160
Figure of single
Outdoor unit
Simultaneous twin
Allowable pipe length (m)
Total length
Branch piping
Outdoor unit ℓ + ℓ
ℓ
• •
1 2 2
ℓ + ℓ
ℓ
•
1 3 •
3
Maximum
Maximum
GM110,GM140,
50 15
GM160
Main pipe
Outdoor unit
Gas side
GM110 15.9
GM140,GM160 15.9
Figure of simultaneous twin
Outdoor unit
31-EN
Height difference (m)
ℓ
Indoor-outdoor H
Maximum Indoor unit: Upper
50 30
Number of bent portions
Liquid side
9.5 10 or less
Indoor unit
Height difference (m)
Indoor-outdoor H
Branch piping
ℓ - ℓ
•
3 2 Indoor unit: Outdoor unit:
Maximum
Upper Upper
10 30 30
Pipe diameter (mm)
Branch piping
Liquid side Gas side Liquid side
9.5 12.7 6.4
9.5 15.9 9.5
Indoor unit
Indoor unit
Simultaneous triple
Outdoor unit
Outdoor unit: Upper
GM160
30
Outdoor unit
GM160
Indoor-indoor
(∆h)
0.5
Number of bent
portions
10 or less
10 or less
– 16 –
Allowable pipe length (m)
Total length
Branch piping Branch piping
ℓ + ℓ
ℓ ℓ - ℓ
•
1 2
• •
2 3 2
ℓ + ℓ
ℓ ℓ - ℓ
•
1 3 • •
3 4 2
ℓ + ℓ
ℓ ℓ - ℓ
•
1 4 • •
4 4 3
Maximum
Maximum Maximum
50 15 10
Pipe diameter (mm)
Main pipe
Gas side Liquid side
Gas side
15.9 9.5 12.7
Figure of Simultaneous triple
Indoor unit
Indoor unit
Outdoor unit 4
2
Distributor
1
Height difference (m)
Indoor-outdoor H
Indoor-indoor
(∆h)
Indoor unit: Outdoor unit:
Upper Upper
30 30 0.5
Number of bent
Branch pipe
portions
Liquid side
6.4 10 or less
Indoor unit
3
32-EN