Greenheck Fan NYB manual Dimensional Data, Model Number Code, NYD - 120 - A, Fan Size

Dimensional Data &

Model Number Code

B

C

A	2 1/2 in.
	(64 mm)

Dimensional Data

Model	A	B		C		Damper Square
NYD-75	19 (483)	303⁄4 (781)		201⁄2 (521)		10 (254)
NYD-90	19 (483)	303⁄4	(781)	201⁄2 (521)		10 (254)
NYD/NYB-100	22 (559)	351⁄2	(902)	25 (635)		12 (305)
NYD-120	24 (610)	37 (940)		231⁄8 (587)		14 (356)
NYD-130	24 (610)	37 (940)		231⁄8	(587)	14 (356)
NYD/NYB-140	26 (660)	411⁄2	(1054)	267⁄8	(683)	16 (406)
NYB-180	30 (762)	45 (1143)		325⁄8	(829)	18 (457)
NYB-240	34 (864)	521⁄2	(1334)	385⁄8	(981)	24 (610)

All dimensions in inches (millimeters).

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

Model
NYD - Direct Drive
NYB - Belt Drive	Fan Size
	75 through 240

Motor RPM for Direct Drive

A= 1725 B = 1140

Motor HP for Belt Drive

4 = 1/4	7 = 3/4
3 = 1/3	10	= 1
5 = 1/2	15	= 11/2

4