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The model ELPX is a low proximity hood
with optional rear discharge make-up plenum (ELPX-B). Hood shall
have size, shape and performance specified on drawings.
Construction shall be
type 430 stainless steel with a #3 or #4 polish where
exposed. Individual component construction shall be determined by
manufacturer, ETL, and NSF. Construction shall be dependent on the structural
application to minimize distortion and other defects. All seams,
joints and penetrations of the hood enclosure to its lower
outermost perimeter that directs and captures grease-laden vapor
and exhaust gases shall have a liquid-tight continuous external
weld in accordance with NFPA 96. Hood shall be wall type with a
minimum of four connections for hanger rods. Connectors shall
have 9/16" holes pre-punched in 1 ½" x 1 ½"
angle iron at the factory to allow for hanger rod connection by
others.
Ventilator shall be furnished with UL
classified aluminum baffle filters, supplied in size and quantity
as required by ventilator. The filters shall extend the full
length of the hood and the filler panels shall not be more than
6" in width.
The hood manufacturer shall supply
complete computer generated submittal drawings including hood
sections view(s) and hood plan view(s). These drawings must be
available to the engineer, architect and owner for their use in
construction, operation and maintenance.
Exhaust duct collar to be 4" high
with 1" flange. Duct sizes, CFM and static pressure
requirements shall be as shown on drawings. Static pressure
requirements shall be precise and accurate; air velocity and
volume information shall be accurate within 1-ft increments along
the length of the ventilator.
UL incandescent light fixtures and
globes shall be installed and pre-wired to a junction box. The
light fixtures shall be installed with a maximum of
4’0" spacing on center and allow up to a 100 watt
standard light bulb.
The hood shall have:
- A double wall insulated front to
eliminate condensation and increase rigidity. The
insulation shall be 1" thick, have a flexural
modulus of 475 EI, meet UL 181 requirements and be in
accordance with NFPA 90A and 90B.
- An integral baffle to direct
grease laden vapors toward the exhaust filter bank.
- A built-in wiring chase shall be
provided for outlets and electrical controls on hood face
and shall not penetrate capture the area or require an
external chaseway.
- The grease drain system shall be
an enclosed integral part of the hood back and have slope
with an exposed, removable ½ pint grease cup to
facilitate cleaning.
The hood shall be ETL Listed as
"Exhaust Hood Without Exhaust Damper", NSF Listed and
built in accordance with NFPA 96. The hood shall be listed for 450°
F cooking surfaces at 125 CFM/ft. with High Velocity Cartridge
Filters and at 150 CFM/ft. with baffle filters. The hood shall
also be listed for 600°F cooking surfaces at 180 CFM/ft. with High Velocity
Cartridge Filters and at 200 CFM/ft. with baffle filters.
Optional back supply plenum shall
provide make-up air discharged below the cooking equipment. All
seams shall be welded and have stainless steel on exposed
surfaces. Perforated diffuser plates shall be included in the
design, to provide even air distribution. Unexposed surfaces
shall be constructed of aluminized steel. Plenum shall be
insulated to prevent condensation.
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