REFRIGERANT SYSTEM 2
b
a
b1
e1
e2
f1 f2
f3
d
c
1 2 3 4 5 6
BP1 BP2
HD1
BP3
Indoor
unit
Indoor
unit
(21.5Btu/h)
(12kBtu/h)
(9.5kBtu/h)
(22.5kBtu/h)(44.0kBtu/h)(58.0Btu/h)
(14kBtu/h)
(14kBtu/h) (12kBtu/h) (9.5kBtu/h)
(7.5kBtu/h)
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Total cooling capacity of indoor units
connected downwards to the pipe.
Outdoor
unit
z
System conguration
(Indoor units)
1 2 3 4 5 6
Total Capacity
(Btu/h)
Model name
ARU L14 ARU L12 ARUL09 ARUL07 ARUL07 ARUL07
58,000
Capacity (Btu/h)
14,000 12,000 9,500 7, 50 0 7,5 0 0 7,5 0 0
z
System conguration
(Outdoor unit)
Outdoor unit 1
Model name
AOU48
Capacity (Btu/h)
48,000
z
Capacity ratio
(Total indoor unit capacity) / (Total outdoor unit capacity)
= (58,000) / (48,000) = 120.8% (Within 50% to 130%)
z
Selection of branch kit
Branch
point No.
Model
BP1 UTP-AX090A
BP2 UTP-AX090A
BP3 UTP-AX090A
HD1 UTR-H0906L
Model Q'ty
UTP-AX090A 3
UTR-H0906L 1
(7.5kBtu/h) (7.5kBtu/h)
(7.5kBtu/h) (7.5kBtu/h) (7.5kBtu/h)
- (06 - 24) -
SYSTEM
DESIGN
SYSTEM
DESIGN