Piping Design Example - Fujitsu AIRSTAGE J-IIIL Design & Technical Manual

2-6. Piping design example

¢ Example 1
Outdoor
unit
93.5 kBtu/h
b
81.5 kBtu/h
BP1 BP2
a1
1
12 kBtu/h
Indoor
unit
• System configuration
Indoor unit
1
2
3
4
5
6
7
8
Outdoor unit
1
• Capacity ratio
(Total capacity of indoor unit)/(Total capacity of outdoor unit)
= 93.5 / 72.0 = 129.8% (Within 50% to 150%)
• Selection of Separation tube
Branch kit no.
BP1
BP2
BP3
BP4
BP5
BP6
BP7
2-6. Piping design example
a
Total cooling capacity of indoor units connected downwards to the pipe
c d
69.5 kBtu/h 57.5 kBtu/h
BP3 BP4
b1 c1
2 3
12 kBtu/h 12 kBtu/h
Indoor Indoor
unit unit
Total capacity
Total capacity
e f
45.5 kBtu/h 33.5 kBtu/h
BP5 BP6
d1 e1
4 5
12 kBtu/h 12 kBtu/h
Indoor Indoor
unit unit
Model name
ARUL12TLAV2
ARUL12TLAV2
ARUL12TLAV2
ARUL12TLAV2
ARUL12TLAV2
ARUL12TLAV2
ARUL12TLAV2
ARUL9TLAV2
Model name
AOU72RLAVL
Model name
UTP-AX090A
- (06-28) -
g h
21.5 kBtu/h 9.5 kBtu/h
BP7
f1 g1
6
7
12 kBtu/h 12 kBtu/h 9.5 kBtu/h
Indoor Indoor
unit unit
Capacity (kBtu/h)
12.0
12.0
12.0
12.0
12.0
12.0
12.0
9.5
93.5
Capacity (kBtu/h)
72.0
72.0
Quantity
7
8
Indoor
unit
2. Piping design