Greenheck Fan NYB Ventilation Hood User Manual


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4
Dimensional Data &
Model Number Code
Model Number Code
Themodelnumbercodeisdesignedtocompletelyidentifythefan.Thecorrectcodelettersmustbe
specifiedtodesignatethecorrectconstruction.Theremainderofthemodelnumberisdeterminedby
thesizeandperformance.
NYD - 120 - A
Motor HP for Belt Drive
4 = 1/4 7 = 3/4
3 = 1/3 10 = 1
5 = 1/2 15 = 1½
Model
NYD - Direct Drive
NYB - Belt Drive
Fan Size
75 through 240
4
Motor RPM for Direct Drive
A = 1725
B = 1140
Dimensional Data
Model A B C Damper Square
NYD-75 19
(483) 30
3
⁄4 (781) 20
1
⁄2 (521) 10 (254)
NYD-90 19 (483) 30
3
⁄4 (781) 20
1
⁄2 (521) 10 (254)
NYD/NYB-100 22 (559) 35
1
⁄2 (902) 25 (635) 12 (305)
NYD-120 24 (610) 37 (940) 23
1
⁄8 (587) 14 (356)
NYD-130 24 (610) 37 (940) 23
1
⁄8 (587) 14 (356)
NYD/NYB-140 26 (660) 41
1
⁄2 (1054) 26
7
⁄8 (683) 16 (406)
NYB-180 30 (762) 45 (1143) 32
5
⁄8 (829) 18 (457)
NYB-240 34 (864) 52
1
⁄2 (1334) 38
5
⁄8 (981) 24 (610)
Alldimensionsininches(millimeters).
B
C
A
2 1/2 in.
(64 mm)
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