Grease Trap Installation; Hinge Installation; Ul Listed Emergency Smoke Control Installation; Mounting For Severe Duty Installation - Greenheck DFD Series Installation, Operation And Maintenance Manual

Grease Trap Installation

The polypropylene grease trap is designed to collect
grease residue and avoid drainage onto roof surface.
Follow all local codes, as well as the National Fire
Protection Agency (NFPA) where applicable.
NFPA 96: Upblast fans shall have a drain directed to a
readily accessible and visible grease receptacle not to
exceed 1 gal. (3.8L)
Refer to Document 476370 - Grease Trap Installation,
Operation and Maintenance Manual for parts list and
specific installation instructions.
Grease Trap Maintenance
Regular inspection of grease trap is recommended.
Depending on the amount of grease discharged through
the fan, the grease trap should be cleaned regularly to
ensure proper operation.
• Check grease absorber (if included) every month.
Replace grease absorber after every cleaning and/
or as needed between cleanings.
• Replacement grease absorbers (P/N 476084) can
be ordered from your local representative.

Hinge Installation

NFPA 96: Upblast exhaust fans shall be supplied with a
hinge.
Refer to listed Installation, Operation and
Maintenance Manuals for parts list and specific
installation instructions:
Document 481937 - Sidewall Mount Hinge Kit
Document 481366 - Bracket Hinge Kit
Document 462865/462866 - Hinge Kit
UL Listed Emergency
Smoke Control Installation
Factory installed
Heat Baffle
8 in. (203 mm)
minimum
Roof Deck
Recommended
Roof Opening
Figure 9 - Typical Roof Mounting Installation
Electrical Connection
For belt drive units in emergency smoke removal
installations, the motor's amperage and voltage rating
must be checked for compatibility to the supply voltage
prior to final electrical connection. Also, the motor itself
cannot have thermal overload protection.
6 Upblast Centrifugal Roof Exhaust
The electrical supply must enter the motor compartment
through the breather tube and the disconnect must
be mounted outside the fan's motor compartment.
Emergency smoke removal fans may also require an
isolated power supply so that if power is cut to the
building in the event
of a fire, the fan will
continue to operate.
Check the local and
national electrical
codes for emergency
smoke removal fans.
Consult local code
authorities for your
specific requirements.

Mounting for Severe Duty Installation

Only qualified installers should perform this work.
Manufacturer assumes no liability for damages
resulting from installation.
Installation instructions for seismic ratings are only
recommendations. Final design must be determined
by Structural Engineer of Record (SEOR) including
requirements for curb construction, mounting of unit
to curb and mounting of curb to structure.
Fan to Curb Mounting: 5/16-inch (7.9 mm) self-drilling
fasteners are to be installed on each side of fan with
one fastener 4-inches (102 mm)
from each edge and one
fastener in the center,
Figure 10. Fasteners are
to be equally spaced.
NEMA-3R
Disconnect
wired to motor
through the
breather tube
Fan Size
≤ 161
Liquid Tight
180 to 240
Flexible Conduit
by Others
≥ 300
Optional Hinged Base Mounting: For installations
that include the optional hinged base accessory, the
fan must be secured to the hinged base and curb using
the correct number of fasteners as shown in the "Fan to
Curb Mounting" section.
All fasteners must be
installed through the
curb cap of the fan, the
hinged base, and the
curb. All fasteners must
be reinstalled after each
time the fan is hinged
open, see Figure 11.
Power
Ventilator
For Smoke
Control
Systems
76Y9
Representation of UL Listed Power Ventilator
for Smoke Control Systems label
IMPORTANT
Roof Curb Models
GPF, GPFHL,
GPFHD or Equilvalent
18 ga. min.
High Wind Ratings
42 in. Tall Max
Seismic Ratings
24 in. Tall Max
Welded Steel Construction
Fasteners
per Side
3
5
9
Figure 10 - Fan to Curb Mounting
Figure 11 - Fasteners
–Important–
ELECTRICAL – If fan motor is NOT thermally protected, remote
overload protection must be installed having adequate rating as to
voltage, frequency, horsepower, and full load current per phase.
Where connected to a circuit protected by fuses, use time delay fuses.
For supply connection use wires rated for at least 90°C (194°F).
INSTALLATION – When connecting electrical power to this fan,
do not restrict motor movement for possible future belt or wheel
adjustment.
CAUTION – Mount with the lowest moving part at least 8 ft
ventilators or duct mounted ventilators provided with belt guards.
ATTENTION – Monter la pièce mobile la plus basse à au moins
2,5 m au-dessus du niveau du sol. Non requis pour les ventilateurs
montés sur un toit ou pour les ventilateurs montés sur gaine avec
protège-courroie.
454975
Unit
1¼ in.
1¼ in
Curb Corner
Anchor Detail
All fasteners
must penetrate
curb and must
be reinstalled
after each
service.
®