Greenheck CUE - Commercial Kitchen Installation

Upblast Centrifugal Roof Exhaust 5
®
2. Mount the curb or wall bracket to the wall with a
minimum of eight 3/8 inch fasteners around the
flange. Caulk and flash the curb or wall bracket to
ensure a watertight seal.
3. Curb only: If unit is equipped with a backdraft
damper, it should be installed now.
4. Lift the fan into place. Do NOT support the unit by
the hoodband during installation.
5a. Curb: Orient fan so the grease trough is downward
and secure fan to curb using a minimum of eight lag
screws, metal screws or other suitable fasteners.
5b. Wall bracket: Orient fan so the grease trough is
downward and secure fan to bracket using the
fasteners provided.
6. Follow steps 6 through 12 of General Ventilation
Installation instructions on page 4.
NOTE: If using any type of hinging, your fan must be
a minimum of 8 inches away from the wall.
NOTE: Do not install your fan more than 12 inches
away from the wall.
Unit
Wall Opening
Standard
Roof Curb
Wall
Hoodband
Unit
Wall
Grease Trough
Standard Roof Curb
Secure standard
roof curb flange
to wall opening
Minimum of
(8) 3/8 inch
fasteners around
the flange
Grease Trough
Pointed Down
12
inches
max.
Unit
12 inches
max.
Standard Roof Curb
Secure
standard roof
curb flange
to wall
opening
Minimum of
(8) 3/8 inch
fasteners
around the
flange
Wall
X
Y
Grease Trough
Figure 7 - Typical Sidewall Mounting Installation (Through Wall)
Unit
12 inches
max.
Standard Roof Curb
Secure
standard roof
curb flange
to wall
opening
Minimum of
(8) 3/8 inch
fasteners
around the
flange
Wall
X
Y
Grease Trough
Unit
12 inches
max.
Standard Roof Curb
Secure
standard roof
curb flange
to wall
opening
Minimum of
(8) 3/8 inch
fasteners
around the
flange
Wall
X
Y
Grease Trough
Grease Pan Kit Dimensions
Fan Size X (in.) Y (in.)
99-130 21.5 13.5
140-160 23.5 13.3
180-200 29.5 17.5
220-240 32.5 18.5
300 33.0 19.5
Figure 8 Typical Roof Mounting Installation
Commercial kitchen installations must comply with
NFPA 96. Check local and national codes for these
installations and consult local code authorities for other
specific requirements.
1. On the roof surface, cut an appropriately sized
hole and follow manufacturer’s instructions on curb
installation. Caulk and flash the curb to ensure a
watertight seal.
2. If unit/curb is equipped with a backdraft damper. DO
NOT install it.
Perform steps 3 - 12 of General Ventilation Installation.
IMPORTANT
The size of the duct must be equal to or larger than
the inlet opening of the fan.
To comply with NFPA 96, the fan discharge must be a
minimum of 40 in. (1016 mm) above the roof surface
and a minimum of 10 ft. (3048 mm) from any building
air intake.
Per NFPA 96, ductwork to an upblast discharge
exhaust fan must be constructed of and supported
by carbon steel not less than No.6MSG (1.52mm) or
stainless steel not less than No. 18 MSG (1.21 mm) in
thickness. Duct must also extend a minimum of 18 in.
(457 mm) above the roof surface.
Ensure that a minimum of 500 ft/min of air velocity
through the duct is maintained per NFPA96, clause
8.2.1.1, 2014 edition and UL705 Supplement SC,
Issue #7, clause 6.2, October 14, 2013.
The following accessories may be required by
NFPA96 depending upon installation: Grease Trap,
Hinge Kit or Hinged Base, Clean-Out Port, and Vented
Curb.
Minimum duct velocities must be maintained in
kitchen exhaust applications. If a speed controller is
used, ensure compliance with all applicable codes.
R oof Dec k
R ec ommended
R oof Opening
Grease
Trap
(optional)
Minimum 40 in.
(1016 mm)
Dis charge Height
Welded Duc t
by Others
Minimum of
18 in. (457 mm)
above roof dec k
per NF PA
NE MA-3R
Dis connect
factory wired
from motor to
dis connect
through the
breather tube
(optional)
Vented Curb
Extension
(optional)
18 in. (457 mm)
Minimum Height
E xternal
Wiring L iquid
Tight Flexible
C onduit
by Others
Commercial Kitchen Installation