Greenheck Fan USGF - Manual (Page 7)

Kitchen Ventilation
Solutions
Typical Installation - Commercial Kitchen (Grease)
The USGF is specifically designed for heavy restaurant grease
and food service applications. These fans are UL and cUL Listed
for grease removal and have been tested under high temperature
(400° F) and abnormal flare-up (600° F) conditions.
Due to high temperatures and grease-laden airstreams in
commercial kitchen ventilation, system designers must be aware
of governing codes and guidelines. The National Fire Protection
Association (NFPA) is the primary source upon where many
codes for commercial kitchens ventilation are based. Selected
information from NFPA is shown below. Local code authorities
should be consulted before proceeding with any kitchen
ventilation project.
Exhaust fans used in kitchen ventilation applications must have
external wiring. (Wiring must not be installed in airstream.)
Installation must include a means for inspecting, cleaning and servicing the exhaust fan.
(e.g. Hinged Curb Cap)
No dampers are to be installed in the system.
W
all Opening
Damper Frame Size
Damper Size
Mounting Hole Bolt Cir
cl
e
Welded Duct
by Others
Recommended
Wall Opening
Mounting
Bolt Hole
Circle
Wall
Liquid Tight
Flexible Conduit
by Others
Welded Duct
by others
min. of 18 in.
above roof
deck per
NFPA
NEMA 3R
Disconnect
factory wired
from motor to
disconnect
through the
breather tube
(Optional)
Liquid Tight
Flexible Conduit
by Others
Recommended
Roof Opening
Roof Deck
Minimum 40"
Discharge
Height
8"min.
Grease
Trap
Vented Curb
Extension
External Wiring
External Wiring
Our Hoods and Filters.
Grease Grabber™
dual filtration system
works with the
Grease-X-Tractor™
filter to remove 80%
of the grease from
the kitchen exhaust.
Available in stainless
steel.
The Grease-X-
Tractor™ high
efficiency filter has
twice the grease
extraction capability
of a baffle filter.
Available in aluminum
or stainless steel.
Greenheck’s
Performance
Enhancing Lip
(PEL) helps direct
air to the filter and
improves capture and
performance
Full length, fully welded
integral grease trough
An integral 3-inch
airspace that meets
NFPA 96 clearance
requirements against
limited combustibles
Constructed of 304 /
430 18 ga. stainless
steel.
Standing seam
construction for added
strength
Redesigned flat light
panels allows for lights
to be installed vertically
and simplified field
installation
Fully welded joints - no
caulk
1
2
3
4
5
6
7
1
2
3
5
6
4
7
The high velocity
cartridge filters
offers dry cartridge
performance at
a lower cost.
Available in
aluminum or
stainless steel.
Baffle type filters
are the traditional
choice for
inexpensive grease
removal. Available
in aluminum,
stainless steel, or
non-stick coated.