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2. PERFORMANCE CURVE
NOTE : A point on the curve shows the reference point.
MS09NW MS12NN
MU09NW MU12NN
MS15NN MS17NN
MU15NN MU17NN
71
67
63
71
67
63
71
67
63
71
67
63
Total power consumption (kW) Total capacity ( o10 Bw/h)
Outdoor intake air DB temperature (
¡
F) Outdoor intake air DB temperature (
¡
F)
Indoor intake air WB temperature (
¡
F)
Indoor intake air WB temperature (¡
F)
Indoor intake air WB temperature (¡F)
Indoor intake air WB temperature (¡F)
Cooling capacity
SHF at rating condition = 0.7
= 279CFM
= 0.26
Airflow
Bypass Factor
Cooling capacity
SHF at rating condition = 0.71
= 392CFM
= 0.17
Airflow
Bypass Factor
12
10
8
6
1.2
65 75 85 95 105 115 67 75 85 95 105 115
0.8
0.6
Total power consumption (kW) Total capacity ( o10 Bw/h)
16
14
12
10
8
2
1
71
67
63
71
67
63
71
67
63
71
67
63
Indoor intake air WB temperature (
¡
F)
Indoor intake air WB temperature (
¡
F)
Cooling capacity
SHF at rating condition = 0.7
= 367CFM
= 0.22
Airflow
Bypass Factor
67 75 85 95 105 115
Total power consumption (kW) Total capacity ( o10 Bw/h)
18
16
14
12
2
1
Outdoor intake air DB temperature (¡F)
Indoor intake air WB temperature (
¡
F)
Indoor intake air WB temperature (
¡
F)
Cooling capacity
SHF at rating condition = 0.65
= 417CFM
= 0.24
Airflow
Bypass Factor
67 75 85 95 105 115
Total power consumption (kW) Total capacity ( o10 Bw/h)
20
18
16
14
2
1
Outdoor intake air DB temperature (¡F)
OB192--1.qxp 23/6/97 11:45 PM Page 10