Gaylord CG3-BDL-DS-MA Specifications

MODEL “CG3-BDL-DS-MA”

WATER-WASH VENTILATOR

ITEM NO. _______________

Furnish Gaylord Ventilator Model “CG3-BDL-DS-MA___” as shown on plans and

GENERAL SPECIFICATIONS

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 utilize three full-length horizontal self draining
baffles for centrifugal grease extraction providing a grease extraction rate of up
to 95% of the mechanically extractable particulate when operated at design
specifications. The use of filters, cartridges or constant running water to extract
grease is not acceptable. The baffle at the air inlet shall be a three position damper
controlled by an electrically driven actuator. In position number one, the fan on
mode, the damper shall be a grease extracting baffle, position two the damper
shall be in the wash mode and position number three in the fire mode. The main
grease gutter shall have a 1" slope to the drain opening and the drain shall be
equipped with a pre-flush line to purge the drain during a wash cycle. Continuous
brackets shall be provided to facilitate hanging from the overhead structure.
o (Optional)The ventilator shall include “Custom Air” baffles to reduce the exhaust
air volume over specific cooking equipment as indicated on the plans (add suffix
“CA” to model number). The ventilator shall operate at air quantities as shown
on plans.

AUTOMATIC WASHDOWN SYSTEM: The ventilator shall include a full length
wash manifold equipped with two rows of brass spray nozzles. When the wash
cycle is initiated the exhaust fan is shut off, the damper shall close forward to seal
off the air inlet slot exposing the entire grease gutter to the wash sprays. At the
conclusion of the wash cycle the damper shall remain closed, in the “System Off”
position, preventing conditioned air from escaping the occupied space via thermal
drafts, and then re-open when the exhaust fan is started. All controls and
components for operation of the wash system shall be housed in the Ventilator
Control Cabinet.

INTERNAL FIRE PROTECTION: The ventilator shall be equipped with an internal
fire protection system activated by thermostat(s) located at the duct collar. When
the temperature of the exhaust air reaches the set point, the fire damper shall
automatically close in the direction of the exhaust air flow, sealing against the back
wall of the ventilator, and act as a barrier to prevent flame from entering the
extraction chamber and duct system. The exhaust and make up air fans shall shut
off, and the internal wash system shall be initiated, acting as a deterrent to fire
in the plenum and exhaust ductwork. In addition, the internal water sprays shall
continuously bathe the fire damper to eliminate warping of the damper during a
severe fire condition. The water sprays shall remain on until the thermostat
temperature drops below it’s set point, then stay on for a two minute cool down
cycle. During the cool down cycle the damper shall open and upon completion
the water sprays shall shut off and the exhaust fan re-start.o (Optional) A remote
fire switch shall be provided and shall be located at an exit. Pulling the fire switch
shall turn on the water sprays, open the fire damper to the fan on position and
turn on the exhaust fan.

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

o (Optional Fuse Link Fire Dampers) Provide fuse link activated fire damper
located at the duct collar. Specifier note: This arrangement eliminates the three

position inlet damper and is replaced by a fixed baffle. This option is identified
by the model number prefix CG3-FDD.

o (Optional No Fire Damper) This option is identified by the model number prefix
CG3-ND.

ACCESSIBILITY AND INSPECTION: The ventilator shall be equipped with full­length non-gasketed hinged inspection doors so that service can be performed on
fire suppression system nozzles, fusible links, wash system manifolds and nozzles,
drains and other interior components without removing any panels, dampers or baffles.
No tools shall be required to access the interior of the extraction chamber or plenum.

CONSTRUCTION: The ventilator shall be of all stainless steel construction, not

less than 18 gauge, type 300 series. All exposed surfaces shall be a number
4 finish. The use of aluminized steel, galvanized steel, or 430 stainless steel
is not acceptable.

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 o100 watt surface
mounted incandescent, o 150 watt recessed incandescent, o recessed fluores­cent, light fixtures. Light fixtures shall be factory interwired. Ventilators built in
multiple sections shall be furnished with coiled flex conduit for interconnecting
sections.

ACCEPTANCE & APPROVALS: The ventilator shall be UL Listed under the
category “Exhaust Hood with Exhaust Damper” and listed by NSF. The ventilator
shall comply with all requirements of NFPA-96, IMC, UMC, BOCA and SBCCI model
codes.

Patent Pending

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 built­in make-up front face air discharge.

FEATURES

• Three Position, Inlet Slot, Damper

• 95% Grease Extraction Efficiency

• CUL and NSF Listed

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

• Complies with all Requirements of NFPA-96

• Fail Safe Damper Control Switch

DESCRIPTION

The Gaylord Model “CG3” 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 95% of the mechanically

extractable grease by centrifugal force when operated and maintained

in accordance with design specifications. The extracted grease
remains out of the airstream until washed away by the hot water,
detergent injected wash cycle, which is manually activated by pushing
the “Start Wash” button on the control cabinet or automatically activated
by the control cabinet if equipped with optional time clock. The 24 hour
fire protection is accomplished by the action of the thermostat(s) located
at the duct collar. Whenever temperatures reach the set point, the fire
cycle is activated which closes the damper at the air inlet of the ventilator,
releases fire extinguishing water spray into the interior of the ventilator,
and shuts off the exhaust and supply fan.

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. Continuous Cold Water Mist

6. Utility Distribution Systems

7. Pollution Control Systems

GAYLORD INDUSTRIES

10900 SW AVERY ST. • TUALATIN, OREGON 97062 U.S.A.

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

www.gaylordusa.com

MODEL “CG3-___-BDL-DS-____-_____”

**

Leave blank = Standard 3 position inlet damper

DAMPER

**

OPTION

MA OPTION

DEPTH OF

VENTILATOR

FDD = Fuse link damper at the duct collar
ND = No damper

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 make­up air designation.
Example: “CG3-BDL-DS-MAW-108”

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.

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)

H.W. SIZE _____________________ DRAIN SIZE ______________________

___________ GPM @ 40 PSI WATER TEMP 140° F - 180° F

Mechanical Requirements

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 and supply volume, S.P.,
duct, hot water, and drain sizes. The standard “CG3-BDL-DS-MA” 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
ventilator model “CG3-BDL-BB” series (consult factory).

ENGINEERING DATA

TYPICAL SECTION VIEW

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 8'-6" 9'-0" 9'-6" 10'-0"

Wt. / lineal ft. Lbs. 165 170 175 180

Note:
All Gaylord Ventilators are pro­vided with a Gaylord Ventilator
Control Cabinet. Refer to Control
Cabinet specification sheet.

Electrical

o Provide 120 volt 20 amp, o 220/240 volt, 50-60 Hz., 24 hour service to Gaylord

Ventilator Control Cabinet (refer to Control Cabinet specification sheet). To be fused
separately. Lights to be on separate circuit, 120 volt standard, 220/240 volt optional.

Form No. CG3-BDL-DS-MA 806-30712 © Copyright 2006, Gaylord Industries Litho USA