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Panel/Drive frame - Galvanized steel with one-piece drawn venturi
Sizes 8-12; D, G, & E motor speeds - zinc plated heavy welded wire
guard/support structure (paint optional).
Sizes 12-24; A, B, & C motor speeds - bolted structural steel channels
and motor plate. (paint optional).
Propeller - Aluminum blades riveted to a steel hub.
Motors - Heavy duty, permanently lubricated, sleeve bearing type on
sizes 8-12 and ball bearing type on sizes 14-24.
All direct drive models are available in either exhaust (Model SE1) or supply (Model SS1) arrangements.
Material Gauges
Max.
Motor
Frame
Size
Approx.
Weight
(lbs.)
Fan
Size
Fan
Panel
Drive
Frame
8 18 - 48 15
10 18 - 48 16
12 18 14* 48 20
14 18 14 56 27
16 18 14 56 30
18 18 14 56 35
20 18 14 145T 39
24 18 14 145T 45
* A, B, and C motor speeds only. Approximate weight does
not include accessories.
Fan
Size
A Panel** B* C* D E F*
Damper
Size**
8 13 (330) 7 (178) 5 (127) 1 (25) 8
3
⁄8 (213) 8 (203) 10 (254)
10 15 (381) 8
3
⁄4 (222) 5 (127) 1 (25) 10
3
⁄8 (264) 8 (203) 12 (305)
12 18 (457) 10
3
⁄4 (273) 8
1
⁄4 (210) 1 (25) 12
3
⁄8 (314) 13
1
⁄8 (333) 14 (356)
14 20 (508) 11
1
⁄4 (286) 8
1
⁄2 (216) 1 (25) 14
3
⁄8 (365) 14
1
⁄4 (362) 16 (406)
16 22 (559) 11
3
⁄4 (298) 8
7
⁄8 (225) 1 (25) 16
3
⁄8 (416) 14 (356) 18 (457)
18 24 (610) 14 (356) 10
7
⁄8 (276) 1 (25) 18
3
⁄8 (467) 14
1
⁄4 (362) 20 (508)
20 26 (660) 17
1
⁄4 (438) 11 (279) 1 (25) 20
1
⁄2 (521) 18 (457) 22 (559)
24 32 (813) 20 (508) 12
5
⁄8 (321) 1
1
⁄4 (32) 24
3
⁄8 (619) 21 (533) 26 (660)
* Varies with motor selection. All dimensions given in inches (mm). **Square dimension.
Direct Drive - Level 1
Dimensional Data: Models SE1/SS1
A Sq.
F*
D
Airflow
Supply
B*
C*
D
E
Airflow
Exhaust
A Sq.
Airflow
Supply
D
F*
E
Airflow
Exhaust
D
B*
C*
Model SE1 exhaust shown
Sizes 8-12
D, G, & E
Motor Speeds
Model SS1 supply shown
Sizes 12-24
A, B, & C
Motor Speeds