15
15
Performance Curves
(1) Calculation methed of refrigerating capacity----refrigerating capacity to be
known=refrigerating
capacity*(A*B*C*D*E)W
E. Fall of refrigerant pipe of indoor and outdoor unit, capacity compensation value of pipe length
C. Capacity modification value under airflow variation
rate of indoor unit group
(only fro duct unit)
A. Capacity compensation value of indoor
air wet-bulb temperature condition
B. Capacity compensation value of outdoor
air dry-bulb temperature condition
D. Capacity compensation suitable for
total capability of indoor unit group
6. Performance Curves
1.2
1.1
1.0
0.9
0.8
15
20
24
Indoor air dry-bulb temperature (°C
)
Capacity modification value
1.2
1.1
1.0
0.9
Outdoor air wet-bulb temperature (°C
)
Capacity modification value
-5
20
0
25
5
30
10
35
15
40 43
1.1
1.0
0.9
80
90
100
110
120
Airflow variation rate (%)
Capacity modification value
120
100
100 120 130
80
60
40
20
20 40 60 80
0
Total capacity of indoor unit group (%)
Standard
capacity
liquid pipe
: φ12.7
gasp ipe
:φ31.8
Single-way pipe length m
)
AV12NMSETA
)
Capacity modification value
1.00
0.95
0.90
0.85
0.80
100 120 140 160 180
20 40
60 80
0
Liquid pipe: φ12.7
Gas pipe : φ25.4
Liquid pipe: φ15.88
Gas pipe : φ28.58
Single-way pipe length (m)
AV12NMSETA
Capacity modification value
1.00
0.95
0.90
0.85
0.80
100 120 140 160 180
20 40
60 80
0
Liquid pipe: φ12.7
Gas pipe : φ22.22
Liquid pipe: φ9.52
Gas pipe : φ19.05
Single-way pipe length (m)
AV08NMSETA
Liquid pipe: φ12.7
Gas pipe : φ25.4
Liquid pipe: φ9.52
Gas pipe : φ22.22
Capacity modification value
1.00
0.95
0.90
0.85
0.80
100 120 140 160 180
20 40
60 80
0
Single-way pipe length (m)
AV10NMSETA
