Fujitsu Airstage J-II Series Design & Technical Manual page 586

2-6. EXAMPLE OF PIPING DESIGN
„ REFRIGERANT SYSTEM 1
„
Outdoor
unit
b
(62.0kBtu/h)(52.5kBtu/h) (45.0kBtu/h) (37.5kBtu/h)(30.0kBtu/h) (22.5kBtu/h) (15.0kBtu/h)
BP1 BP2
a1
1
(9.5kBtu/h)
Indoor
unit
z System configuration
„
1
Model name ARUL09
Capacity (Btu/h) 9,500
z System configuration
„
Outdoor unit
Model name AOU60
Capacity (Btu/h) 60,000
z Capacity ratio
„
(Total indoor unit capacity) / (Total outdoor unit capacity)
= (62,000) / (60,000) = 103.3% (Within 50% to 130%)
z Selection of branch kit
„
Branch
Model
point No.
BP1 UTP-AX090A
BP2 UTP-AX090A
BP3 UTP-AX090A
BP4 UTP-AX090A
BP5 UTP-AX090A
BP6 UTP-AX090A
BP7 UTP-AX090A
a
c d
BP3 BP4
b1 c1
2 3
(7.5kBtu/h) (7.5kBtu/h)
Indoor Indoor
unit unit
(Indoor units)
2 3
ARUL07 ARUL07 ARUL07
7,500 7,500 7,500
(Outdoor unit)
Total cooling capacity of indoor units
connected downwards to the pipe.
e f
BP5 BP6
d1 e1
4 5
(7.5kBtu/h) (7.5kBtu/h)
Indoor Indoor
unit unit
4 5 6
ARUL07 ARUL07
7,500 7,500
Model
UTP-AX090A
- (06 - 22) -
g h
(7.5kBtu/h)
BP7
f1 g1
6 7
(7.5kBtu/h) (7.5kBtu/h)
Indoor Indoor
unit unit
Total
7 8 Capacity
(Btu/h)
ARUL07 ARUL07
62,000
7,500 7,500
Q'ty
7
8
(7.5kBtu/h)
Indoor
unit