Typical installation, Fan to curb mounting, Concrete deck anchoring – Greenheck Fan H-CUBE. User Manual
Page 4

®
Model H-CUE
or
H-CUBE
H-GPF or SD Curb
Model H-G
or
H-GB
Fastener
Fastener
Tie Down is
optional on
sizes 060 - 240
Fasteners on each side of the fan are to be installed with one fastener 4 inches (102 mm) from each edge and one
fastener centered. The remaining fasteners are to be equally spaced.
Typical Installation
Fan to Curb Mounting
Typical Installation
Concrete Deck Anchoring
H-CUE
Size
H-CUBE
Size
Fasteners
Per Side
Total
Fasteners
060 - 161
098 - 161
3
12
180 - 200
180 - 240
5
20
-
300
9
36
H-G
Size
H-GB
Size
Fasteners
Per Side
Total
Fasteners
060 - 141
098 - 161
3
12
150 - 180
180 - 300
5
20
Fan to curb tie down is not required to meet 150 MPH wind loads for size 240
and smaller.
Corner Detail
1¼
inch (32 mm)
1¼
inch
(32 mm)
Minimum Concrete
Strength of 2000 PSI
1 inch (25 mm) Insulation
Roof Opening
5 inch (127 mm) Mounting Flange
Outside Flange
Center fasteners
on fl ange
Use 3/8 inch (10 mm) expansion
anchor or equal into concrete.
Fasteners one on each corner
as detailed.
Each side at center of unit.
Maximum fastener spacing of 8
inches (203 mm), add additional
fasteners to satisfy.
Minimum 1¾
inch
(44 mm) edge distance
2½
inch (64 mm)
Embedment Recommended.
Minimum 1
5
/
8
inch (41 mm).
H-GPF Curb Height
8 to 18 inches
(203 to 457 mm)
(Optional 24 inch
(610 mm) SD Curb)
All dimensions in inches (millimeters).
H-G
Size
H-GB
Size
H-CUE
Size
H-CUBE
Size
Fan Curb Cap
Roof Opening
Fasteners
Per Side
Outside Flange
060 - 075
-
060 - 075
-
17 x 17 (432 x 432)
10½
x 10½
(267 x 267)
5
26 x 26 (660 x 660)
080 - 095
-
-
-
17 x 17 (432 x 432)
12½
x 12½
(318 x 318)
5
26 x 26 (660 x 660)
-
-
080 - 095
-
19 x 19 (483 x 483)
12½
x 12½
(318 x 318)
5
28 x 28 (711 x 711)
101 - 121
071 - 131
098 - 131
098 - 131
19 x 19 (483 x 483)
14½
x 14½
(368 x 368)
5
28 x 28 (711 x 711)
131 - 141
141 - 161
141 - 161
141 - 161
22 x 22 (559 x 559)
18½
x 18½
(470 x 470)
5
31 x 31 (787 x 787)
150
-
-
-
26 x 26 (660 x 660)
18½
x 18½
(470 x 470)
5
35 x 35 (889 x 889)
160 - 180
180 - 200
180 - 200
180 - 200
30 x 30 (762 x 762)
20½
x 20½
(521 x 521)
7
39 x 39 (991 x 991)
-
220 - 240
-
220 - 240
34 x 34 (864 x 864)
26½
x 26½
(673 x 673)
7
43 x 43 (1092 x 1092)
-
260 - 300
-
300
40 x 40 (1016 x 1016)
32½
x 32½
(826 x 826)
7
49 x 49 (1245 x 1245)
Outside of Roof Curb
(1 inch (25 mm) less than
Fan Curb Cap)
4