Specification Sheet

323
MODELS GED/GSD, DFE/DFS, DDE/DDS
DIRECT DRIVE SIDEWALL PROPELLER FANS
WALL COLLAR: This heavy-gauge, all G-90 galvanized (aluminum optional) mounting collar provides a simple solution to
installing a fan in a rough wall opening when a rear safety guard is NOT required. A front wire guard or shutter and rainhood
can be attached to the front anges. The wall collar can be used in exhaust or supply applications for all fan sizes and
maintain the proper clearance between the fan and damper. The wall collar is mounted with the fan on the interior side of the
building. All collars ship fully assembled with the fan to lessen job site installation costs. We strongly recommend a rainhood
and motorized shutter for all supply applications and for additional weather protection.
WALL COLLAR
RAINHOOD
DAMPER
GUARD
Fan Size
WALL COLLAR
MINIMUM WALL
OPENING
FLAT
GUARD
DAMPER
RAINHOOD
Exhaust
45 Deg.
A C Square D (SQ.) E (O.D.) F G
10/12 17 16 17 1/2 16 14 1/2 12 16 3/4
14/16 21 16 21 1/2 20 18 1/2 16 20 1/4
18/20 25 16 25 1/2 24 22 1/2 20 24 1/4
24 31 21 31 1/2 30 28 1/2 26 28 1/2
30 37 21 37 1/2 36 34 1/2 32 34 1/2
36 43 21 43 1/2 42 40 1/2 38 40 1/2
42 49 21 49 1/2 48 46 1/2 44 44 1/2
48 55 21 55 1/2 54 52 1/2 50 49 1/2
54 61 21 61 1/2 60 58 1/2 56 55
60 67 21 67 1/2 66 64 1/2 62 69
WALL COLLAR MOUNTING OPTIONS
MODELS GED/GSD, DFE/DFS, DDE/DDS
DIRECT DRIVE SIDEWALL PROPELLER FANS