Fujitsu AIRSTAGE J-IIIL Design & Technical Manual page 31

 Example 2
Indoor temperature
82°FDB/68°FWB
(27.8°CDB/20°CWB)
• Selection of indoor unit
No Item
A-1 Cooling heat load
Indoor unit models
A-2
(Example: AU)
A-3 (TCin)r
A-4 (TCin)d
Compensation coefficient of
A-5
pipe length
A-6 (TCin)e
A-7 ∑(TCin)r
A-8 ∑(TCin)d
1-3. Capacity calculation method
Design conditions
Outdoor temperature
95°FDB
(35°CDB)
Outdoor
unit
Pipe length (L) = 246 ft (75 m)
Indoor Indoor
unit 1 unit 2
Room 1 Room 2
Room
1 2
kBtu/h 25.6 25.6
AUUB AUUB AUUB
30 30
kBtu/h 30.0 30.0
kBtu/h 31.4 31.4
kBtu/h 28.3 28.3
kBtu/h
kBtu/h 102.6
- (02-9) -
Pipe length
246 ft
(75 m)
Indoor Indoor
unit 3 unit 4
Room 3 Room 4
3 4 5
25.6 2.7 2.7
AUUA AUUA
30 4 4
Refer to "Indoor units" of
30.0 4.0 4.0
31.4 4.2 4.2
Refer to
0.9
28.3 3.8 3.8
98.0
Height difference
65 ft (20 m)
Outdoor unit higher side
Indoor
unit 5
Room 5
Remark
"Outdoor
unit and indoor unit lineup"
Chapter 1. GENERAL
INFORMATION on page 01-1.
Refer to "Cooling capacity table
(Indoor unit)" on page 02-14.
"Capacity compensation
coefficient" on page 02-13.
(A-4) × (A-5)
Sum of A-3
Sum of A-4
1. Model selection and capacity calculation
in