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Panel/Drive frame - Galvanized steel with one-piece
drawn venturi, bolted structural steel channels and
motor plate. (paint optional).
Propeller - Heavy duty, cast aluminum.
Motors - Heavy duty, permanently lubricated, ball
bearing type.
Material Gauges Max.
Motor
Frame
Size
Approx.
Weight
(lbs.)
Fan
Size
Fan
Panel
Drive
Frame
Prop Hub
Prop
Blade
20 18 12
Cast
Aluminum
Prop
Cast
Aluminum
Prop
145T 55
24 18 12 184T 80
30 16 12 184T 125
36 16 12 215T 220
42 14 10 254T 290
48 14 10 254T 386
54 14 10 256T 477
Approximate weight does not include accessories.
Fan
Size
A Panel** B* C* D E F*
Damper
Size**
20 26 (660) 17
1
⁄4 (438) 13
1
⁄2 (343) 1 (25) 20
1
⁄2 (521) 18 (457) 22 (559)
24 32 (813) 20 (508) 13
1
⁄2 (343) 1
1
⁄4 (32) 24
5
⁄8 (625) 21 (533) 26 (660)
30 38 (965) 20
1
⁄2 (521) 16
3
⁄8 (416) 1
1
⁄4 (32) 30
5
⁄8 (778) 21
3
⁄4 (552) 32 (813)
36 44 (1118) 20
1
⁄2 (521) 16
3
⁄8 (416) 2 (51) 36
5
⁄8 (930) 28 (711) 38 (965)
42 50 (1270) 26 (660) 18
1
⁄4 (464) 2 (51) 42
5
⁄8 (1083) 28 (711) 44 (1118)
48 56 (1422) 26
5
⁄8 (676) 20
5
⁄8 (524) 2 (51) 49
1
⁄4 (1251) 28
1
⁄2 (724) 50 (1270)
54 62 (1575) 28 (711) 22
7
⁄16 (570) 2 (51) 55
3
⁄8 (1407) 30
1
⁄8 (765) 56 (1422)
* Varies with motor selection. All dimensions given in inches (mm). **Square dimension.
Direct Drive - Level 3
Dimensional Data: Models SCE3/SCS3
All direct drive models are available in either exhaust (Model SCE3) or supply (Model SCS3) arrangements.
A sq.
F*
D
B*
C* D
E
Airflow
Exhaust
Airflow
Supply
Model SCE3 exhaust shown