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Performance certified is for installation type B: Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the
effects of appurtenances (accessories).
The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA International Standard 301. Values shown are
for installation type B: free inlet hemispherical sone levels.
BSQ 240 - Belt Drive
34
(864)
39
(991)
34
7
⁄8
(886)
39
(991)
1
1
⁄2 (38)
*19
(483)
*22
(559)
*32
7
⁄8
(835)
Damper size = 35 x 35 (889 x 889)
Unit weight** = 415 (188)
Housing thickness = 18 ga
Model
Number
Motor HP
Fan
RPM
CFM / Static Pressure in Inches wg
0.125 0.250 0.500 0.750 1.000 1.250 1.500 1.750 2.000 2.500
240
240-5 1/2
500
CFM 4518 4001
BHP 0.33 0.35
Sones 10.7 10.2
569
CFM 5269 4833 3685
BHP 0.48 0.51 0.51
Sones 12.3 11.8 10.8
240-7 3/4 651
CFM 6132 5768 4946
BHP 0.70 0.74 0.78
Sones 14.3 13.9 12.9
240-10 1
684
CFM 6475 6135 5368 4273
BHP 0.81 0.85 0.90 0.89
Sones 15.2 14.9 13.8 12.6
717
CFM 6816 6498 5782 4884
BHP 0.93 0.97 1.03 1.03
Sones 16.2 15.9 14.9 13.6
240-15 1
1
⁄2 826
CFM 7935 7680 7086 6425 5604
BHP 1.41 1.45 1.54 1.59 1.58
Sones 19.5 19.5 18.7 17.4 16.2
240-20 2 903
CFM 8720 8488 7960 7384 6756 5889
BHP 1.83 1.88 1.97 2.05 2.09 2.05
Sones 22 22 22 20 18.9 17.9
240-30 3
969
CFM 9390 9174 8695 8176 7612 6962 6075
BHP 2.25 2.31 2.41 2.50 2.56 2.57 2.52
Sones 25 24 24 23 21 20 19.4
1034
CFM 10048 9845 9409 8936 8421 7881 7219 6268
BHP 2.73 2.79 2.90 3.01 3.08 3.14 3.11 3.03
Sones 28 27 27 26 23 22 22 21
240-50 5
1098
CFM 10694 10503 10105 9660 9192 8695 8160 7510 6451
BHP 3.26 3.32 3.44 3.56 3.65 3.72 3.76 3.72 3.58
Sones 31 31 30 29 26 24 24 23 22
1225
CFM 11973 11802 11460 11070 10671 10245 9804 9345 8797 7124
BHP 4.50 4.58 4.72 4.84 4.97 5.07 5.16 5.22 5.20 4.95
Sones 41 40 38 37 34 31 28 28 28 26
MAX Bhp AT A GIVEN RPM = (rpm/706)
3
MAXIMUM RPM = 1225
TIP SPEED (ft/min) = rpm x 6.414
MAX NEMA MOTOR FRAME SIZE = 215T
OUTLET VELOCITY (ft/min) = 0.1192 x cfm
0 5 10 15 20
0
100
200
300
400
500
600
700
D
O
N
O
T
S
E
L
E
C
T
T
O
T
H
E
L
E
F
T
O
F
T
H
I
S
S
Y
S
T
E
M
C
U
R
V
E
0 2 4 6 8 10 12 14
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Static Pressure in. wg
cfm X 1000
m
3
/hr X 1000
Static Pressure Pa
5 hp
3 hp
2 hp
1 1/2 hp
1 hp
3/4 hp
1/2 hp
1225
1070
900
730
560
390
RPM
HP
Density 0.075 lb/ft
3
Dimensions shown in inches (millimeters) and weight is shown in pounds (kilograms).
*Motor cover is optional. Size may be greater depending on motor.
**Weight shown is largest cataloged Open Drip Proof motor.