Gaylord GX2-FDD-BDL Service Manual

EFFECTIVE DATE 5-14-03

THE

GAYLORD VENTILATOR

TECHNICAL MANUAL

FOR THE GRAND “GX2-FDD” SERIES

NON WATER-WASH VENTILATORS

GAYLORD INDUSTRIES

10900 S.W. AVERY STREET • P.O. BOX 1149 • TUALATIN, OREGON 97062-1149 U.S.A.

800-547-9696 • 503-691-2010 • FAX: [phone] • email: [e-mail]

“Undisputed World Leader in

Engineered Systems for

Commercial Kitchens”

tm

GAYLORD INDUSTRIES

World Headquarters: P.O . Bo x 1149 • T ualatin, Oregon 97062-1149 U .S .A.

To Our Customers. . .
Congratulations on your recent purchase of a Gaylord

kitchen exhaust hood system. W e are proud to be ab le
to provide you with a quality product that incorporates
the latest engineering concepts and is a result of over
50 years of experience in the foodservice kitchen
exhaust industry.

If you have other Gaylord equipment such as a Gaylord
Utility Distribution System, Quencher Fire Protection Sys-
tem, or Roof Top Air Handling Equipment, etc., please
refer to the corresponding supplementary equipment
manuals.

If you have further questions, please call us toll free at
1-800-547-9696 or email:[e-mail]. We are
more than happy to help.

Sincerely,

Gaylord Industries

PHONE: [phone] • 800-547-9696 • FAX: [phone] • email: [e-mail] • www.gaylordusa.com

COMMERCIAL KITCHEN EXHAUST SYSTEMS • FIRE PROTECTION • UTILITY DISTRIBUTION • ROOF TOP UNITS • POLLUTION CONTROL

STREET ADDRESS: 10900 S.W. Avery Street, Tualatin, Oregon 97062-8549 U.S.A.

TABLE OF CONTENTS

“GX2-FDD” SERIES PRINCIPLE OF OPERATION ............................................... 3

STANDARD MODELS ............................................................................................ 6

MAINTENANCE AND CLEANING INSTRUCTIONS.............................................. 7

TROUBLESHOOTING ........................................................................................... 8

MEASURING INLET SLOT VELOCITY ................................................................. 10

WIRING DIAGRAM ................................................................................................ 13

PARTS LIST ........................................................................................................... 14

START-UP INSPECTION REPORT ....................................................................... 15

WARRANTY................................................................................. Inside back cover

PATENT NUMBERS

U.S.A.: 4,266,529

4,281,635
4,356,870

CANADA: 1,139,151

1,155,366

GERMANY: 8,034,240

ALL RIGHTS RESERVED. NO PART OF THIS BOOK MAY BE REPRODUCED, STORED
IN A RETRIEVAL SYSTEM, OR TRANSMITTED IN ANY FORM BY AN ELECTRIC, ME­CHANICAL, PHOTOCOPYING, RECORDING MEANS OR O THERWISE WITHOUT PRIOR
WRITTEN PERMISSION OF GAYLORD INDUSTRIES, INC. COPYRIGHT 2003.

© Copyright 2003, Gaylord Industries

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.

ADDITIONAL COPIES $10.00

“GX2-FDD” SERIES PRINCIPLE OF OPERATION

The Gaylord “GX2-FDD” Series Non Water-Wash Ventilator
offers simplicity, economy and performance that no other
ventilator can offer. The unique “extractor insert” gives a
grease extraction efficiency far superior to that of a typical
baffle filter. The Gaylord “GX2-FDD” Series Ventilators are
UL Listed and meet all the requirements of NFPA #96 and the
International Mechanical Code.

EXHAUST FAN OPERATION

The exhaust fan is controlled by the Gaylord C-150 “Exhaust
Fan Start/Stop Switch”, an optional switch, or a standard wall
switch. The switch is usually located on a wall near the
ventilator. When the switch is flipped up to the on position,
the exhaust fan will come on.

GREASE EXTRACTION

The Gaylord “GX2-FDD” Series Ventilator extracts 90% of
the grease, dust, and lint particles from the airstream pass­ing through it. Grease extraction is accomplished by unique,
removable stainless steel “extractor inserts” which incorpo­rate a series of horizontal baffles. As the air moves through
the extractor at high speed, it is forced to make a series of
turns around these baffles, forcing the heavier-than-air par­ticles of grease, dust, and lint to be thrown out of the
airstream by centrifugal force. The sticky grease collects in
the extractor and the liquified grease drains down into the
main grease gutter which slopes to the grease cup. Note:
Some ventilators may be equipped with optional “Custom
Air” baffles (shown dotted) to reduce the exhaust volume
over specific light duty cooking appliances. The extractor
inserts come in two sizes15½" (5.6 lbs.) and 19½" (6.75 lbs.).
IMPORTANT NOTE: Never operate ventilator without ex-
tractor inserts in place.

GREASE EXTRACTION

FIG. 1

3

“GX2-FDD” SERIES PRINCIPLE OF OPERATION

CLEANING

At the end of the cooking day the exhaust fan is turned off by
the “Exhaust Fan Start/ Stop Switch.” After the fan has been
turned off, the extractor inserts are removed and can be
washed either in a dishwasher or soaked and rinsed off. The
grease cup is also removed and emptied at this time. To ease
in the removal of the extractor inserts, an “Extractor Removal
Tool” is available which eliminates the need for kitchen
personnel to climb up on the cooking equipment, or up a
ladder.

FIG. 2

4

“GX2-FDD” SERIES PRINCIPLE OF OPERATION

FIRE PROTECTION

NFPA #96 requires the use of surface, duct and plenum
protection on all hoods. It is these systems that are the first
line of defense against equipment fires.

The “GX2-FDD” Series ventilator incorporates a fuse link
damper at the duct collar. In the event of a fire, should the
fuse link at the duct collar reach 280°F, the fuse link melts
allowing the damper to close. (See Fig. 3) This prevents the

flames from entering the ductwork and spreading to other
parts of the building. The fire is contained in the kitchen area
where it can be properly fought. After the fire is extinguished
the fuse link in the duct collar needs to be replaced and the
damper reset.

Surface, duct collar and plenum fire protection utilizing The
Gaylord Quencher System or other fire protection systems
currently on the market can be factory installed as an option.

FIG. 3

5