9
ESP
FAN
SPEED
RANGE OF AVAILABLE AIRFLOW RATE IN
H-SPEED
Max Point
Mid Point
Min Point
Max
CFM
SP
(in.)
Mid
CFM
SP
(in.)
Min
CFM
SP
(in.)
0.10
H
1265
0.02
1070
0.10
935
0.16
0.20
H
1265
0.12
1070
0.19
935
0.24
0.30
H
1265
0.24
1070
0.30
935
0.34
0.40
H
1265
0.33
1070
0.38
935
0.42
0.50
H
1265
0.44
1070
0.49
935
0.53
0.60
H
1265
0.52
1070
0.59
935
0.64
LEGEND
ESP
—
External Static Pressure
SP
—
Static Pressure
0.00
0.04
0.08
0.12
0.16
0.20
0.24
0.28
0.32
0.36
0.40
0.44
0.48
0.52
0.56
0.60
0.64
0.68
600
800
1,000
1,200
External static
pressure
(in WG)
Fan Characteristics Curve
Air Flow (CFM)
H-Speed
M-Speed
L-Speed
H-
Speed
H-Speed
M-S
peed
L-Speed
M-Speed
L-S
peed
1070
Upper Limit of ESP (Max ESP)
Lower Limit of ESP
(Max ESP)
Upper Limit of ESP
(Rating ESP)
Upper Limit of ESP (Min ESP)
Lower Limit of ESP
(Rating ESP)
Lower Limit of ESP
(Min ESP)
Fig. 10 — Size 030A Fan Curves
ESP
FAN
SPEED
RANGE OF AVAILABLE AIRFLOW RATE IN
H-SPEED
Max Point
Mid Point
Min Point
Max
CFM
SP
(in.)
Mid
CFM
SP
(in.)
Min
CFM
SP
(in.)
0.10
H
1366
0.00
1200
0.09
1020
0.16
0.20
H
1380
0.11
1200
0.21
1020
0.26
0.30
H
1380
0.21
1200
0.28
1020
0.34
0.40
H
1380
0.34
1200
0.40
1020
0.46
0.50
H
1380
0.44
1200
0.48
1020
0.55
0.60
H
1380
0.50
1200
0.56
1020
0.62
LEGEND
ESP
—
External Static Pressure
SP
—
Static Pressure
0.00
0.04
0.08
0.12
0.16
0.20
0.24
0.28
0.32
0.36
0.40
0.44
0.48
0.52
0.56
0.60
0.64
650
850
1,050
1,250
1,450
External static
pressure
(in WG)
Fan Characteristics Curve
Air Flow (CFM)
H-S
peed
M-Speed
L-Speed
H-S
peed
H-Speed
M-Spe
ed
L-S
peed
M-Speed
L-S
peed
1200
Upper Limit of ESP (Max ESP)
Lower Limit of ESP
(Max ESP)
Upper Limit of ESP
(Rating ESP)
Upper Limit of ESP (Min ESP)
Lower Limit of ESP
(Rating ESP)
Lower Limit of ESP (Min ESP)
Fig. 11 — Size 036A Fan Curves
FAN CURVE
CHARACTERISTICS
(Cont.)