Fujitsu AUYG07LVLA Design & Technical Manual page 273

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