Gaylord GX2-BDL-DS-MA Specifications

MODEL “GX2-BDL-DS-MA”

NON WATER-WASH VENTILATOR

GENERAL SPECIFICATIONS

Furnish Gaylord Ventilator Model “GX2-BDL-DS-MA____________” as
shown on plans and in accordance with the following specifications:
GENERAL: Each ventilator shall have one high-velocity centrifugal grease
extractor with two air inlet slots, one on each side of the extractor. One slot
shall have an adjustable baffle to regulate the ratio of exhaust volume between
the two slots. Each ventilator shall contain one or more removable “extractor
inserts” with a grease extraction efficiency of 90% when operated at design
specifications. Extractor inserts shall be constructed of stainless steel and
contain full-length, self-draining baffles. Extractors shall be easily remov­able, for periodic cleaning, from the floor area immediately in front of the
equipment by utilizing an extractor removal tool. The grease collecting gutter
at the bottom of the extractor housing shall slope to a drain at one end of the
ventilator to a removable stainless steel grease cup. The sloped gutter shall
be concealed by an apron which extends the full length of the hood.
Continuous brackets shall be provided to facilitate hanging from the overhead
structure. ❏ (Optional)The ventilator shall include “Custom Air” baffles to
reduce the exhaust volume over specific cooking equipment as indicated on
the plans (add suffix “CA” to model number). The ventilator shall operate at
air quantities and static pressure as indicated on plans.

❏ ❏

❏ Ventilator with a Fire Damper (standard equipment) - The ventilator

❏ ❏

shall be equipped with a full length fire damper located in the ventilator
extractor plenum between the extractor inserts and the ventilator duct collar.
❏ Thermostatically Operated Fire Damper (standard) - The damper shall
be controlled by an electrically driven actuator, specifically listed for such use
and shall be activated by fail safe thermostat(s) located at the duct collar.
Upon activation, the exhaust and supply fan shall shut off and the damper
shall close, in the direction of air flow, sealing against the front of the plenum
and act as a fire barrier to prevent flame from entering the plenum and duct
system. The damper shall also close each time the exhaust fan is turned
off, to prevent conditioned air from escaping the occupied space via thermal
drafts, and then re-open when the exhaust fan is started. Fire dampers
located at the exhaust duct collar are not acceptable. The ventilator shall be
UL Listed under the category “Exhaust Hood with Exhaust Damper”. Access
doors to reach duct fire protection nozzles shall not be permitted.

❏ ❏

❏ Fuse Link Activated Fire Damper (optional) - (series prefix “GX2-

❏ ❏

FLD”) The damper shall be spring loaded and activated by fuse link(s)
located at the duct collar. Upon activation, the exhaust and supply fan shall
shut off and the damper shall close, in the direction of air flow, sealing against
the front of the plenum and act as a fire barrier to prevent flame from entering
the plenum and duct system. The damper shall be manually reset without
the use of tools and without opening or removing access panels. Dampers
located at the exhaust duct collar are not acceptable. The ventilator shall be
listed under the category “Exhaust Hood with Exhaust Damper”

❏ Ventilator without Fire Damper (optional) - (series prefix “GX2-ND”)

The ventilator shall be UL listed under the category “Exhaust Hood without
Exhaust Damper”.

MAKE-UP AIR OPTIONS: The ventilator shall have an air supply plenum,
with duct collar(s) and:
❏ Incorporate registers for front face discharge make-up air. (Add suffix
“MAR” to the model number.)
❏ Incorporate stainless steel perforated panels for front face discharge
make-up air. (Add suffix “MAW” to the model number.)

CONSTRUCTION: The ventilator shall be of all stainless steel construction,
not less than 18 gauge, type 304. All exposed surfaces shall be a number
4 finish. The use of aluminized steel, galvanized steel, or 430 stainless steel
is not acceptable in any part of the ventilator.

ELECTRICAL: The ventilator shall be factory pre-wired to a single connec­tion point. Ventilators built in multiple sections shall be furnished with coiled
flex conduit for interconnecting sections by applicable trades.

LIGHT FIXTURES: The ventilator shall be equipped with ❏ 100 watt surface
mounted incandescent, ❏ 150 watt recessed incandescent, ❏ recessed
fluorescent, light fixtures. Light fixtures shall be factory pre-wired to a single
connection point. Ventilators built in multiple sections shall be furnished with
coiled flex conduit for interconnecting sections.

ACCEPTANCE & APPROVALS: The ventilator shall be UL and NSF listed.
The ventilator shall comply with all requirements of NFPA-96, IMC, UMC,
BOCA and SBCCI model codes.

ITEM NO. _______________

APPLICATION

Used for typical island style cooking arrangements where light and medium
duty equipment is used on one side and light-duty equipment is used on
the other, and the distance between the equipment does not exceed 30".
Consult factory for exceptions. Refer to the Master Engineering Data
Sheet in the Engineering Data section of the Gaylord catalog for
determining light and medium duty equipment. Includes built-in make-up
front face air discharge.

FEATURES

• Fire Damper Within Ventilator Plenum

• All Type 304 Stainless Steel

• 90% Grease Extraction Efficiency

• CUL and NSF Listed

• Complies With The IMC, UMC, BOCA and
SBCCI Mechanical Codes

• Fail Safe Damper Control Switch

DESCRIPTION

The Gaylord Model “GX2” Series Ventilator has been tested to UL
Standard 710 and is UL listed under the category “Exhaust Hood with
Exhaust Damper”. The ventilator extracts up to 90% of the grease by
centrifugal force when operated and maintained in accordance with
design specifications. Centrifugal grease extraction is accomplished by
unique, removable stainless steel "extractor inserts" that incorporate a
series of horizontal baffles. At the end of the cooking day or at periodic
intervals, the inserts are removed and can be washed either in a
dishwasher or soaked and rinsed off. An extractor removal tool is available
which makes removal of the extractors extremely easy. The extractor
inserts come in two sizes: 15½" (5¼ lbs.) and 19½" (6¾ lbs.). The GX2
series is equipped with a thermostatically activated, or optional fuse link
activated, internally mounted fire damper. The ventilator is also avilable
without a fire damper, identified by the prefix “GX2-ND”. The GX2 series
can be totally integrated with the “CG3” water-wash series.

OPTIONAL EQUIPMENT

1. Decorative Facings and Trim

2. Exhaust Fans, Supply Fans, & Roof Top Units

3. Fire Extinguishing Systems

4. Custom Air (low air volume ventilators)

5. Air Monitoring Systems

6. Utility Distribution Systems

7. Heat Reclaim Units

Patent Pending

GA YLORD INDUSTRIES, INC.

P.O. BOX 1149 • TUALATIN, OREGON 97062-1149 U.S.A.

PHONE: [phone] • FAX: [phone] • email: [e-mail]

MODEL “GX2 - BDL - DS - ____-____”

MA OPTION

DEPTH OF
VENTILATOR

For supply air option add one of the following
suffixes to the model number: o MAW o MAR
Add the overall width of the ventilator after the
make-up air designation.
Example: “GX2-BDL-DS-MAW-108”

ITEM NO. ______________________ EST. WT. _________________________

LENGTH _____________ WIDTH ______________ HEIGHT ______________

EXHAUST - CFM ________________ DUCT SIZE ____________ S.P. ______

SUPPLY - CFM _________________ DUCT SIZE ____________ S.P. ______

(MEDIUM SIDE)

SUPPLY - CFM _________________ DUCT SIZE ____________ S.P. ______

(LIGHT SIDE)

Mechanical Requirements

The manufacturer reserves the right to
modify the materials and specifications
resulting from a continuing program of
product improvement or the availability of
new materials

ENGINEERING DATA

Exhaust volume depends upon the type of cooking equipment and the type
and volume of cooking. Refer to the Master Engineering Data Sheet in the
Engineering Data section of the Gaylord catalog for the charts to determine
exhaust volume, duct sizes, and static pressure. The standard “GX2-BDL­DS” ventilator operates at 250 CFM/Lin.ft. on the medium side and 150
CFM.Lin. ft. on the light side for a total of 400 CFM/Lin.ft. If the cooking
equipment requires more exhaust, as determined by the Master Engineering
Data Sheet, it may be necessary to use back-to-back ventilators, model
“GX2-BDL-BB” series (consult factory).

Electrical

A Gaylord stop/start switch, Model C-250, is provided for each exhaust fan.

Ventilator Lengths

Maximum unit length 16'-0" . For greater lengths, join two or more sections
together. Check to ensure that there is adequate access into building and kitchen
area.

Note: Ventilators manufactured outside North America; maximum unit length

*

10'-0".

Hanging Weight

Ventilator Width 9'-0" 9'-6" 10'-0" 10'-6"

Wt. / lineal ft. Lbs. 194 200 210 217

TYPICAL SECTION VIEW

Refer to Model C-250 specification sheet in the Control Cabinet section of
the Engineering Catalog for specifications and electrical details. Lights to be
on separate circuit, 120 volt standard, 220/240 volt optional.

Form No. GX2-BDL-DS-MA 100 © Copyright 2000, Gaylord Industries, Inc. Litho USA