Performance certified is for installation type A: Free inlet, Free outlet. Power rating (Bhp) does not include transmission losses. Performance ratings include the effects of a
birdscreen in the airstream. The sound ratings shown are loudness values in fan sones at 5 feet (1.5 m) in a hemispherical free field calculated per AMCA Standard 301. Values
shown are for installation type A: Free inlet hemispherical sones.
20
75
33
1
⁄
(1905)
2
(851)
11
1
52
(292)
(1321)
70
1
⁄
2
29
(1791)
(737)
52
(1321)
Fan
RPM
0
0.125
CFM
8328
6455
190
BHP
0.21
0.25
Sones
5.2
4.3
CFM
10827
9583
247
BHP
0.47
0.53
Sones
6.9
6.0
CFM
12405
11362
283
BHP
0.71
0.78
Sones
8.3
7.6
CFM
13632
12718
311
BHP
0.94
1.02
Sones
9.8
9.3
CFM
14640
13812
334
BHP
1.17
1.25
Sones
11.5
11.0
CFM
15605
14828
356
BHP
1.41
1.5
Sones
13.2
12.7
CFM
17183
16477
392
BHP
1.89
1.98
Sones
16.1
15.5
CFM
18410
17751
420
BHP
2.32
2.42
Sones
18.6
18.0
CFM
19637
19020
448
BHP
2.82
2.93
Sones
22
21
CFM
21128
20554
482
BHP
3.51
3.63
Sones
23
23
CFM
22574
22037
515
BHP
4.28
4.41
Sones
25
24
1.6
1.4
300
1.2
37
3
⁄
1.0
8
(949)
200
0.8
0.6
⁄
2
100
0.4
0.2
0
0.0
0
0
38
1
⁄
Hood Thickness
4
(972)
Cover Thickness
Louver Thickness
Curb Cap Thickness
Damper Size Square
Roof Opening Square
Weight*
All dimensions are in inches (millimeters). Weight in pounds
(kilograms). *Weight shown is the largest cataloged
Open Drip Proof motor. See page 8 for severe duty LBP