483464 • GRSI and GRSR, Rev. 1, January 2019 Copyright 2019 © Greenheck Fan Corporation2
As a result of our commitment to continuous improvement, Greenheck reserves the right to change specifications
without notice.
Product warranties can be found online at Greenheck.com, either on the specific product page or in the literature
section of the website at Greenheck.com/Resources/Library/Literature.
®
Phone: 715.359.6171 • Fax: 715.355.2399 • Parts : 800.355.5354 • E-mail: gfcinfo@greenheck.com • Website: www.greenheck.com
Our Commitment
Unit
Size
AB CD E F
Damper
Size
8
19
(483)
20
1
⁄2
(521)
7
1
⁄4
(184)
1
1
⁄2
(38)
20
1
⁄4
(514)
8
1
⁄4
(210)
8 x 8
(203 x 203)
10
19
(483)
20
1
⁄2
(521)
7
3
⁄4
(197)
2
(51)
20
1
⁄4
(514)
10
1
⁄4
(260)
10 x 10
(254 x 254)
12
22
(559)
29
(737)
10
(254)
3
1
⁄2
(89)
23
1
⁄4
(591)
12
1
⁄4
(311)
12 x 12
(305 x 305)
15
22
(559)
29
(737)
10
(254)
3
1
⁄2
(89)
23
1
⁄4
(591)
14
1
⁄4
(362)
16 x 16
(406 x 406)
16
26
(660)
29
(737)
11
(279)
4
1
⁄4
(108)
27
1
⁄4
(692)
16
1
⁄4
(413)
16 x 16
(406 x 406)
18
30
(762)
35
1
⁄2
(902)
9
3
⁄4
(248)
1
3
⁄4
(44)
31
1
⁄4
(794)
20
1
⁄4
(514)
18 x 18
(457 x 457)
20
30
(762)
35
1
⁄2
(902)
11
1
⁄4
(286)
3
3
⁄4
(95)
31
1
⁄4
(794)
20
1
⁄4
(514)
18 x 18
(457 x 457)
24
34
(864)
38
1
⁄4
(972)
11
(279)
4
(102)
35
1
⁄4
(895)
24
1
⁄2
(622)
24 x 24
(610 x 610)
30
40
(1016)
48
(1219)
18
3
⁄4
(476)
5
7
⁄16
(138)
-
30
1
⁄2
(775)
30 x 30
(762 x 762)
36
46
(1168)
56
3
⁄4
(1441)
21
1
⁄4
(540)
6
(152)
-
36
1
⁄2
(927)
36 x 36
(914 x 914)
42
52
(1321)
63
1
⁄4
(1607)
24
1
⁄4
(616)
6
1
⁄4
(159)
-
42
1
⁄2
(1089)
42 x 42
(1067 x 1067)
48
58
(1473)
72
(1829)
26
1
⁄4
(667)
6
1
⁄2
(165)
-
48
1
⁄2
(1232)
48 x 48
(1219 x 1219)
All dimensions in inches (millimeters) and the weight in pounds (kilograms).
NOTE: Sizes GRS-8 through 24 have a one-piece cover and shroud. Access is gained
through the removal of screws. Sizes GRS-30 through 48 have a removable cover,
separate from the shroud to facilitate maintenance and servicing of dampers.
Dimensional Data Parts List
GRSI/GRSR - Sizes 30 - 48
F
1¾
(44)
D
A
C
B
GRSF - Sizes 8 - 24
with Optional Flashing Flange
F
D
E
C
B
GRSI/GRSR Sizes 8 - 24
B
F
1¾
(44)
D
A
C
Hood
Birdscreen
Optional Flashing Flange
Birdscreen
Support Bracket (4)
HoodWindband
Curb Cap