Specification Sheet

377
DIMENSIONS
Size
Dimensions (Inches) Metal Gauges
Avg.
Wt.
A B C
D
Sq.
E
Sq.
F
Sq.
G
Sq.
Wind-
band
Curb
Cap
Fan
Panel
24 30 33 16 32 24 31 28 18 16 16 310
30 36 36 17 38 30 37 34 18 16 16 340
36 42 38 17 44 36 43 40 18 16 16 430
42 48 41 18 50 42 49 46 18 16 16 490
48 54 44 22 56 48 55 52 18 14 16 640
54 60 47 22 62 54 61 58 18 14 14 840
60 66 50 22 68 60 67 64 18 14 14 1000
72 80 56 31 82 72 81 78 18 12 12 1550
A - Outside dimension of windband.
B - Height of unit above curb cap.
C - Maximum depth of unit below top of curb, actual depth varies with motor size.
D - Inside dimension of square curb cap.
E - Minimum inside dimension of curb opening required for adequate clearance of fan frame.
F - Outside dimension of factory built pre-fab curb.
G - Recommended roof opening (inside dimension of factory built prefab curb.)
Model UBB - Belt Drive
Model UBX - Direct Drive
2"
MODELS UBB & UBX
UPBLAST PROPELLER ROOF EXHAUSTERS