Carrier 40VMA Series, Installation And Maintenance Instructions Manual, Page: 6 / 25

6
FAN CURVE CHARACTERISTICS
Fig. 4 —Size 036
Fig. 5 —Size 048
ESP
Fan
Speed
Range of Available Airflow Rate in H-Speed
Max Point Rating Point Min Point
Max
CFM
SP
(in.)
Mid
CFM
SP
(in.)
Min
CFM
SP
(in.)
0.20
H 676
0.16
588
0.20
500
0.23
0.24
0.20 0.24 0.27
0.28
0.24 0.28 0.31
0.32
0.28 0.32 0.35
0.36
0.32 0.36 0.39
0.40
0.36 0.40 0.43
0.44
0.39 0.44 0.48
0.48
0.43 0.48 0.52
0.52
0.47 0.52 0.56
0.56
0.50 0.56 0.60
0.60
0.54 0.60 0.64
0.64
0.57 0.64 0.68
0.68
0.61 0.68 0.72
0.72
0.65 0.72 0.76
0.76
0.69 0.76 0.80
0.80
0.73 0.80 0.84
LEGEND
ESP
— External Static Pressure
SP — Static Pressure
0
0.08
0.16
0.24
0.32
0.4
0.48
0.56
0.64
0.72
0.8
0.88
350 400 450 500 550 600 650 700
Air
Ň
ow
˄
CFM
˅
Ex
te
rn
al s
ta
Ɵ
c p
re
ss
ur
e(i
n
W
G)
40VMA036---3
H-Speed
H-Speed
H-Speed
M-Spee
d
M-Speed
M-Speed
L-Speed
L-Speed
L-Speed
-
Upper Limit of ESP (0.8 in WG)
Lower Limit of ESP (0.8 in WG)
Upper Limit of ESP (0.44 in WG)
Upper Limit of ESP (0.2 in WG)
Lower Limit of ESP (0.44 in WG)
Lower Limit of ESP (0.2 in WG)
ESP
Fan
Speed
Range of Available Airflow Rate in H-Speed
Max Point Rating Point Min Point
Max
CFM
SP
(in.)
Mid
CFM
SP
(in.)
Min
CFM
SP
(in.)
0.20
H 744
0.15
647
0.20
550
0.22
0.24
0.19 0.24 0.26
0.28
0.23 0.28 0.30
0.32
0.27 0.32 0.34
0.36
0.31 0.36 0.38
0.40
0.34 0.40 0.43
0.44
0.37 0.44 0.48
0.48
0.41 0.48 0.52
0.52
0.45 0.52 0.56
0.56
0.49 0.56 0.60
0.60
0.53 0.60 0.64
0.64
0.57 0.64 0.68
0.68
0.60 0.68 0.73
0.72
0.64 0.72 0.77
0.76
0.68 0.76 0.81
0.80
0.72 0.80 0.85
LEGEND
ESP
— External Static Pressure
SP — Static Pressure
0
0.08
0.16
0.24
0.32
0.4
0.48
0.56
0.64
0.72
0.8
0.88
350 400 450 500 550 600 650 700 750 800
Air
Ň
ow
˄
CFM
˅
Ex
te
rn
al
st
a
Ɵ
c p
re
ssu
re
(in
W
G
)
40VMA048---3
Upper Limit of ESP (0.8 in WG)
Lower Limit of ESP (0.8 in WG)
Upper Limit of ESP (0.44 in WG)
Upper Limit of ESP (0.2 in WG)
Lower Limit of ESP (0.44 in WG)
Lower Limit of ESP (0.2 in WG)
H-Spee
d
M-S
peed
L-Speed
H-S
peed
M-S
peed
L-Speed
H-Spe
ed
M-Speed
L-Speed