Greenheck USGF (462077) - Manual (Page 4)

4 Model USGF Ultimate Steel Grease Fan
®
Model Size Curb Cap Size Roof Opening
Number of Screws
(per side)
Outside Flange
USGF‑141 ‑ 160HP 26 x 26 (559 x 559) 18½ x 18½ (470 x 470) 5 35 x 35 (889 x 887)
USGF‑180 ‑ 200HP 30 x 30 (762 x 762) 20½ x 20½ (521 x 521) 7 39 x 39 (991 x 991)
All dimensions shown are in inches (millimeters).
CONCRETE DECK ANCHORING DETAIL
Typical Installation for Concrete Deck Anchoring
Figure 6
Corner Detail
11/4 in. (32 mm)
11/4 in.
(32 mm)
5 in. (127 mm) Mounting Flange
Outside Flange
Center fasteners on flange
Minimum Concrete
Strength of 2000 PSI
1 in. (25 mm) Insulation
Roof Opening
Use 3 ⁄ 8 in. (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 in. (203 mm),
add additional fasteners to satisfy.
Minimum 13/4 in.
(44 mm) edge distance
2 1 ⁄
2
in. (64 mm)
Embedment Recommended
minimum 1 5 ⁄ 8 in. (41 mm)
H-GPF Curb Height
8 to 18 in. (203 to 457 mm)
(Optional 24 in. (610 mm) SD Curb)
Outside of Roof Curb
1 in. (25 mm) less than Fan Curb Cap
Typical Installation for Wood Deck Anchoring
Figure 8
Roof Opening
Center fasteners
on flange
Outside Flange
Use #12 Wood Screws or equal into
minimum No. 1/No. 2 Southern Pine wood
support.
Fasteners one on each corner as detailed.
Each side at center of unit. Maximum
fastener spacing of 6 in. (152 mm), add
additional fasteners to satisfy.
Wood Support Member
Nominal 2 x 4, 6, 8
Wood Decking
2 in. (51 mm) Minimum Embedment
5 in. (127 mm) Mounting Flange
1 in. (25 mm) Insulation
H-GPF Curb Height
8 to 18 in. (203 to 457 mm)
(Optional 24 in. (610 mm) SD Curb)
Outside of Roof Curb
1 in. (25 mm) less than
Fan Curb Cap Corner Detail
11/4 in. (32 mm)
11/4 in.
(32 mm)
Typical Installation for Metal Building/Steel Deck Anchoring
Figure 7
Roof Opening
Minimum 12 ga Steel
Roof Truss
Outside Flange
Center fasteners
on flange
Use #12-14 self-drilling screws or equal.
Fasteners one on each corner as
detailed.
Each side at center of unit. Maximum
fastener spacing of 8 in. (203 mm), add
additional fasteners to satisfy.
Corrugated Roof Deck
5 in. (127 mm) Mounting Flange
1 in. (25 mm) Insulation
Outside of Roof Curb
1 in. (25 mm) less than
Fan Curb Cap
H-GPF Curb Height
8 to 18 in. (203 to 457 mm)
(Optional 24 in. (610 mm) SD Curb)
Corner Detail
11/4 in. (32 mm)
11/4 in.
(32 mm)