Fujitsu ASYG12LUCA

6. SYSTEM DESIGN
EXAMPLE 4

1 2 3
a b
d
f i l
e
c
Outdoor unit
Separation
tube
Branch box Branch box Branch box
Separation
tube
Indoor unit Indoor unit Indoor unit
(5.0kW) (5.0kW) (7.0 kW)
System conguration

(Indoor units)
1 2 3 4 5 6 7 8
Total
capacity
(kW)
Model name AS18 AS18 AS24
17.57
Capacity class (kW) 5.0kW 5.0kW 7.0 kW
Rated capacity of
cooling (kW)
5.27 5.27 7.03
Capacity ratio

(Total capacity of indoor units) / (Capacity of outdoor unit)
= (17.57) / (14.0) = 125.5% (Within 80% to 130%)
Selection of separation tube

Model Q'ty
UTP-SX248A 2
Selection of branch box

Model Q'ty
UTP-PY03A (3 branches) None
UTP-PY02A (2 branches) 3
Selection of pipe size

a b c d e f g
Liquid pipe size
mm (in.)
9.52
(3/8)
9.52
(3/8)
9.52
(3/8)
9.52
(3/8)
9.52
(3/8)
6.35
(1/4)
Gas pipe size
mm (in.)
15.88
(5/8)
15.88
(5/8)
15.88
(5/8)
15.88
(5/8)
15.88
(5/8)
12.70
(1/2)
Pipe length
m
7 18 18 5 5 12
h i j k l m
Liquid pipe size
mm (in.)
6.35
(1/4)
6.35
(1/4)
Gas pipe size
mm (in.)
12.70
(1/2)
15.88
(5/8)
Pipe length
m
12 12
- (06 - 25) -
SYSTEM DESIGN SYSTEM DESIGN