GAYLORD ELX SERIES User manual

i
10900 S.W. AVERY STREET - TUALATIN, OREGON 97062 U.S.A.
email: [email protected] - 800-547-9696 - FAX: [phone]
www.gaylordvenlaon.com
Rev 05
OPERATION, MAINTENANCE
& INSTALLATION MANUAL
For
“ELX” And “ELX-UVi” SERIES
VENTILATORS
GAYLORD INDUSTRIES

ii
All rights reserved. No part of this book may be reproduced, stored in a retriev-
al system, or transmied in any form by an electronic, mechanical, photocopy-
ing, recording means or otherwise without prior wrien permission of Gaylord
Industries.
©Copyright 2012, Gaylord Industries
The manufacturer reserves the right to modify the materials and
specicaons resulng from a connuing program of product
improvement or the availability of new materials
Addional Copies $25.00 Each

iii
Gaylord Industries
10900 SW Avery St.
Tualatin, OR 97062
Office: 503.691.2010
Toll Free: 800.547.9696
www.gaylordventilation.com
Gaylord Industries 10900 SW Avery Street Tualatin, OR 97062 www.gaylordventilation.com
To Our Customers:
Congratulations on your recent purchase of a Gaylord Model ELX Series Ventilator. We are
proud to be able to provide you with a quality product that exemplifies our long standing
dedication to quality engineering and manufacturing.
Your Gaylord Ventilator is assembled from some to the very finest components available and
is designed for years of efficient, effective, and trouble-free operation. In addition, the product
has undergone rigorous quality control inspections and testing prior to shipment.
If you have any questions, please contact us at [e-mail] or by calling us
toll free 800-547-9696. We are more than happy to help.
Sincerely,
Gaylord Industries

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Page iv
This Page Intenonally Le Blank

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Page v
Table of Contents
Chapter 1 – Introducon
Introducon ..……………………………………………………………………………………………………………………. 1-1
Model Descripon …………………………………………………………………………………………………………….. 1-2
Model Number Explanaon ………………………………………………………………………………………………. 1-3
Chapter 2 – Principles of Operaon
EL and ELX Series
Turning on the Exhaust Fan ………....................................................................................... 2-1
Turning o the Exhaust Fan ………………….…….…………………………………………………………………… 2-2
Cleaning the Venlator ……………………………………………………………………………………………………… 2-3
Fire Protecon …………………………………………………………………………………………………………………… 2-3
ELX-UVi Series
Turning on the Exhaust Fan and UV System ……...................................................................... 2-5
Turning o the Exhaust Fan and UV System ..…………………………………………………………………….. 2-9
Cleaning the Venlator ……………………………………………………………………………………………………… 2-9
Fire Protecon …………………………………………………………………………………………………………………… 2-10
Oponal Balancer Dampers ………………………………………………………………………………………………. 2-12
Chapter 3 - Maintenance
Operator Cleaning and Maintenance Instrucons ……………................................................... 3-1
UV System - Scheduled Prevenve Maintenance ……………………………………………………………… 3-4
Recommended Detergent for Cleaning ................................................................................. 3-7
Chapter 4 - Troubleshoong
Trouble Shoong ……………………………………………………………………………………………………………… 4-1
Chapter 5 – Tesng and Repair
Measuring Airow .................................................................................................................. 5-1
Make-Up Air Guidelines ……………………………………………………………………………………………………. 5-11
Replacing UV Lamps ............................................................................................................... 5-13
Replacing UV Lamp Sockets .................................................................................................. 5-16
UV Ballast Box – Replacing Ballast ........................................................................................ 5-20
UV Ballast Box – Replacing Ballast Boards .............................................................................. 5-21
UV Ballast Box – Replacing UV Venlaon Control Board ...................................................... 5-21
UV Ballast Box – Replacing Venlaon Fan ............................................................................ 5-22
UV Ballast Box – Pressure Switches - Overview e.................................................................... 5-22
UV Ballast Box – Seng Pressure Switches ............................................................................ 5-23
UV Ballast Box – High Temperature Shutdown Controller ..................................................... 5-26

vi
Page vi
Table of Contents – Cont.
Chapter 6 - Parts
Parts - Venlator ..................................................................................................................... 6-1
Parts – UV Venlator …………………………………………………………………………………………………………. 6-4
Parts – UV Lamp Module …………………………………………………………………………………………………… 6-5
Parts – UV Ballast Box ……………………………………………………………………………………………………….. 6-7
Chapter 7 – Wiring Diagrams
Wiring Diagrams ……………………………………………………………………………………………………………….. 7-1
Appendices
Installaon Requirements …………………………………………………………………………………………………. A-1
Venlator Start-Up Inspecon and Tests ………………………………………………………………………...... B-1

1-1
Chapter 1 - Introducon, Page 1-1
Introducon
About this Technical Manual
The purpose of this manual is to provide the Operator, Maintenance and Service personnel instrucons for
operang, maintaining and troubleshoong the Gaylord Venlator. Venlators incorporang UV Systems,
maintenance and repair must be performed by a trained and cered service company. This manual also
includes informaon and guidance to contractors for the inial installaon of the Venlator.
The manual is divided into chapters for easy reference to a parcular subject. The pages in the chapters
are numbered with the chapter number then a dash and then the page number. So for example pages
in Chapter 2 are numbered 2-1, 2-2, 2-3 etc. Figures and Tables are numbered in a similar manor. For
example Figure 5-3-2 is on page 5-3 and is the second gure. Please keep your manual in a convenient
locaon for so it can be accessed easily.
If you have any quesons or concerns with the installaon, operaon, maintenance or service of your
Gaylord Venlator, please contact Gaylord Industries;
Web: www.gaylordvenlaon.com
E-mail: info@gaylordvenlaon.com
Main Phone: [phone] Toll Free: 800-547-9696
Safety
It is important that the operator read Chapter 2, Principle of Operaon, and Chapter 3, Maintenance,
before operang the Venlator for the rst me. Parcular aenon should be given to all the Cauon
and Warning statements.
Related Technical Manuals
1. ELX-UVi Series Venlators are controlled by a Gaylord Command Center. The specic manual for
this control is tled Operaon, Maintenance and Installaon Manual for the Gaylord Command
Center and Wash Control Cabinet.
2. ELX and ELX-UVi Series Venlators installed in the United States all include a Gaylord Autostart
Control. In some instances Venlators installed outside the United States will include an Autostart
Control. To determine if the Venlator includes an Autostart Control refer to page 1-3 and the
Nameplate mounted on the Venlator. The specic manual for this control is tled Operaon and
Maintenance Manual for the Gaylord Autostart Control.
3. ELX and ELX-UVi Venlators may include a Gaylord “Capture Wall” opon. The specic manual for
installaon of this is tled Installaon Manual – ELX Venlators with Capture Wall.
Operaon and Maintenance Manuals may be downloaded from the Gaylord website at
www.gaylordvenlaon.com or may be obtained by calling Gaylord Industries.

1-2
Figure 1-2-2
Model ELX-AB Series
Wall Mounted
Backshelf Style
Figure 1-2-4
Model ELX-CL Series
Single Extractor Design
for Single Island Arrangement
Chapter 1 – Introducon, Page 1-2
Model Descripon
OVERVIEW
The Gaylord Model EL Series Venlator uses a Listed bae lter and the ELX uses a Gaylord Model XGS high
grease Extractor. The Model ELX-UVi Series includes the addional feature of an Ultraviolet Light System
that removes up to 99% of the grease parculate.
The EL, ELX and ELX-UVi Venlators come in many dierent models, some of which are illustrated below.
Your Venlator may appear slightly dierent as they may have been custom designed to t the space and
applicaon.
Figure 1-2-1
Model ELX-BDL Series
Wall Mounted Canopy Shown With
Oponal Capture Wall
Figure 1-2-3
Model ELX-BB Series
Island Style for all
Double Island Arrangements

1-3
Chapter 1 – Introducon, Page 1-3
Model Number Explanaon
Model Number Sequence
Gaylord Venlator model numbers are made up of an alphabec prex followed by a series of alphabec
and/or numeric suxes to designate the style of venlator and various opons. Sequence of model
numbers is as follows.
1._______ 2._______ 3._______ 4._______ 5._______ 6._______ 7._______ 8.________ 9.________
Series Damper
Type
Style Front Lip
Design
(Opon)
Apron
Design (If
Applicable)
Canopy
Front Height
(Opon)
Solid fuel AutoStart Hood Depth
Denion of Prexes and Suxes
1. Series
EL ....................... Non water-wash venlator with UL 1046 lters.
ELX …………………. Non water wash ventilator incorporating XGS Extractors.
ELX-UVi ............. Non water wash ventilator incorporating XGS Extractors and UV filtration.
ELX-ENL …………. Non water wash ventilator incorporating XGS Extractors and UV filtration.
2. Damper Type
GBD ………………… Gaylord Balancing Damper. Has a mechanical balancing damper located at the duct
collar. (Standard)
GFBD.................. Gaylord Fire Balancing Damper. Has an electric, thermostatically activated Fire/
Balancing damper located at the duct collar with back draft feature. 325°F
thermostat standard.
GEBD ………………. Gaylord Electric Balancing Damper. Has an electric balancing damper located at the
duct collar with back draft feature.
FDD .................... Weighted fuse link acvated damper located at the duct collar. 280°F fuse link
standard.
ND …………………… No Damper.
3. Style
Blank ……………… Wall mounted canopy style.
CL …………………… Island style for single line of cooking equipment using one extraction chamber
(Light to Medium Duty only).
BBC-CL …………… Island style for single line of equipment using one extraction chamber with one
common exhaust duct.
BBC ………………… Island style for double line of cooking equipment using on one extracon chamber
and one common exhaust duct.
BB …………………… Island style for double line of equipment using two extraction chambers and two
separate exhaust ducts

1-4
Chapter 1 – Introducon, Page 1-4
Model Number Explanaon – Cont.
Denion of Prexes and Suxes – Cont.
4. Front Lip Design (Front lower edge of the hood)
Blank ……………… Facetted front design with 6 inch return flange. (3 Break or greater at front lip)
(CL models to have a maximum of 9”)
S ......................... Square front with 6 inch “Super Capture” lip
5. Apron Design Designation
Blank ………………. Capture wall to be added below hood.
A …………………….. Hood to have an apron, which will terminate at the bottom lower edge of the
canopy. (No interconnecting drains).
UW …………………. Gaylord UDS to be incorporated into capture wall. (Mixed Intertek and UL listing
required).
6. Front Canopy Profile Option
Blank ……………… Standard Profile - 30”or greater canopy height.
MP …………………. Medium Prole - 24” to 30” front height.
LP …………………… Low Profile - 12” to 23”front height. (Considerations for proper capture and contain need
to be considered with this opon).
7. Solid Fuel Equipment (If Applicable – 700°F Applications only)
Blank………………. Cooking equipment powered by sources other than the burning of wood.
SPA………………… Hood use “XGS-SPA” Spark Arrestor Extractors – Intended applications that utilize
the burning of wood as a heat source.
8. AutoStart Opon
Blank ................. Indicates the hood section does not have Autostart system as required by IMC.
AS .................... Indicates the hood section has Autostart conforming with the IMC requirement.
ASM ……………….. Indicates the hood is equipped with the second generation AutoStart system
conforming with the IMC requirement or the Demand Control Ventilation System
complying with IMC IECC, Calif. Title 24, IGCC, and ASHRAE Std. 90.1 / 189.
ASM1………………. Indicates the hood is equipped with a DCV system for a single fan mul-hood
applicaon.
9. Hood Depth (Outside of Structural wall to front of hood canopy)
(##) …………………. Value in inches to indicate the hood depth.

2-1
Chapter 2 – Principles of Operaon, Page 2-1
EL and ELX Series
Turning on the Exhaust Fan
Cauon: Always turn on the exhaust fan before turning on the cooking equipment.
Cauon: The chemical re exnguishing system may discharge if the exhaust fan is not on while the
cooking equipment is on or sll hot.
Cauon: Never operate your Venlator without the XGS Extractors or Grease Filters in place. Refer to
Figure 2-1-1.
To operate the exhaust fan ip the fan switch to the ON posion. The switch is typically mounted on a wall
near the Venlator or it may be mounted on the face of the Venlator.
Note 1: The EL and ELX Series Venlator may be equipped with a Gaylord Electric Balancing Damper,
designated “GEBD” in the Venlator model number, or a Gaylord combinaon Fire Damper/Balancing
Damper, designated “GFBD” in the model number. The Venlator model number can be found on the
Venlator Nameplate (Refer to Figure 5-5-2 for a sample of the nameplate and to Page 2-12 for informaon
on Balancing Dampers). If the Venlator includes one of these dampers when the fan is started the damper
moves from the closed to open posion and it will take approximately 45 seconds for the exhaust to come
up to 100%.
Note 2: Typically EL, ELX and ELX-UVi Series Venlators installed in the United States are equipped with a
Gaylord Autostart Controller that automacally turns on the exhaust fan if the temperature at the sensors
mounted in the canopy exceeds 90°F. (Refer to Figure 2-8-1). In some instances Venlators installed
outside the United States will include an Autostart Control. Inclusion of an Autostart Control is designated
by the sux “AS” in the model number. The Venlator model number can be found on the Venlator
Nameplate (Refer page 5-5-2 for a sample of the Nameplate). Refer to the Operaon, Maintenance and
Installaon Manual for the Gaylord Command Center for complete informaon on the Autostart Control.
Grease Extracon
Grease is extracted by either Listed Grease Filters or by the use of Gaylord Model XGS Extractors. Venlators
with Listed Grease Filters are designated EL Series and with Gaylord XGS Extractors they are designated
ELX Series. The Gaylord Industries Patent Pending Model XGS Extractor is designed to deliver the absolute
opmum in collecon eciency at the lowest possible pressure drop. The Extractors are ETL Recognized
as part of the ELX Venlator. They are constructed of corrosion resistant stainless steel.

2-2
Chapter 2 – Principles of Operaon, Page 2-2
EL and ELX Series – Cont.
Turning on the Exhaust Fan – Cont.
Figure 2-2-1
Grease Extracon
Turning O the Exhaust Fan
Cauon: Always turn o the cooking equipment and allow to cool before turning o the exhaust fan.
The chemical re exnguishing system may discharge if the cooking equipment is on or hot when the
exhaust fan is o.
At the end of the cooking day, turn o the cooking equipment and allow to cool before turning o the
exhaust fan. To turn o the exhaust fan ip the fan switch to the o posion
Note 1: If the Venlator includes a Gaylord Autostart Controller the exhaust fan will stay on if the temperature
at the duct collar is above 90°F. Once the temperature drops below 90°F., the fan will connue to run for
60 minutes and then shut o.
Note 2: If the Venlator is equipped with a Gaylord Electric Balancing Damper, designated “GEBD” or a
combinaon Gaylord Fire/Balancing Damper, designated “GFBD”, when the fan is turned o the damper
will move from the open to the closed posion, and remain closed unl the exhaust fan is re-started.
Closing the damper saves building energy by not allowing condioned air from draing up the exhaust
duct, or in cold climates prevents cold air from coming down the duct and into the kitchen.
Autostart Sensor
Grease Laden Air
Balancing Damper
Gaylord Model
XGS Extractor
Grease Gutter
Grease Drawer
Light Fixture

2-3
Chapter 2 – Principles of Operaon Page 2-3
EL and ELX Series – Cont.
Cleaning the Venlator
At the end of the cooking day, or at periodic intervals, depending upon the type of cooking, the XGS
Extractors must be removed and cleaned. They may be removed by hand or by use of an Extractor Removal
Tool (refer to Figure 2-3-1). In addion the Grease Drawer must be removed and cleaned and the Grease
Guer wiped out. Refer to page 3-1 for detailed instrucons on cleaning.
Figure 2-3-1
Cleaning
Fire Protecon
Fire Damper
The EL and ELX Series Venlator may be equipped with a combinaon Gaylord Fire Damper/Balancing
Damper, designated “GFBD” in the Venlator model number. If equipped, a 250°F. thermostat will be
mounted at the entrance of the exhaust duct collar (refer to Figure 2-3-1). In the event or a re and the
thermostat reaches 250°F., the following will occur:
1. The re damper will close prevenng re from extending into the exhaust duct and fan.
2. The exhaust and supply fans will also shut o.
3. If the Venlator is wired to the building re alarm system the alarm will acvate.
4. Once the thermostat cools below 250°F., the re damper will open, and the exhaust and supply
fans re-start.
Plenum Area
Grease Drawer
Gaylord Model XGS
Extractor

2-4
Chapter 2 – Principles of Operaon Page 2-4
EL and ELX Series – Cont.
Fire Protecon – Cont.
Fire Exnguishing Systems
The Naonal Fire Protecon Associaon Standard 96 (NFPA-96) and the Internaonal Fire Code (IFC)
requires the use of a Fire Exnguishing System to cover the cooking surfaces, Venlator exhaust plenums
(the area behind the grease extractors), and the exhaust duct (Refer to Figure 2-4-1). Upon acvaon of
the Fire Exnguishing System the follow will occur:
1. Fire exnguishing agent will discharge through the cooking equipment nozzles, the plenum nozzles
and the duct nozzle(s).
2. The protected cooking equipment and possibly other cooking equipment will shut o. Refer to the
above referenced codes for specic equipment that must shut o.
3. If the Fire Exnguishing System is wired to a building re alarm system the alarm will acvate.
4. If the Fire Exnguishing System is wired to a building management system it will nofy of a re
condion.
5. The Fire Exnguishing System should be wired to the Gaylord fan control. If is the following will
occur:
a) If the exhaust and supply fan were on the exhaust fan would stay on and the supply fan would
shut o. It the exhaust and supply fans were o, the exhaust fan would come on and the
supply fan would stay o.
b) If the Venlator is equipped with a Gaylord Electric Balancing Damper (model GEBD) or a
Gaylord Fire/Balancing Damper (model GFBD) the damper will open.
6. Aer discharge, the Fire Exnguishing System must be recharged and cered by a re system
contractor before the cooking equipment can be turned back on.
For Operaon and Maintenance of the Fire Exnguishing System, refer to the system manufacture’s
Owner’s Manual.
Important: NFPA-96 requires inspecon and cercaon of re systems every 6 months.
Figure 2-4-1
Fire Exnguishing System Discharge
When a Fire Exnguishing System
Discharges, the Balancing Damper
remains open. If equipped with an
Electric Balancing Damper, Model
GED, the damper remains open or
opens if it was closed. If equipped
with a Model GFBD Fire Damper,
and the thermostat acvates, the
damper closes.
Fire Extinguishing System
Detector
Fire Extinguishing System
Plenum Nozzle
Fire Extinguishing System
Cooking Equipment Nozzles
Balancing Damper
Fire Extinguishing System
Duct Nozzle

2-5
Chapter 2 – Principles of Operaon Page 2-5
ELX-UVi Series
Ultraviolet Systems (UV)
Overview
Venlators incorporang UV Lamps are designated Model ELX-UVi Series Venlators. UV Systems are used
to remove a high percentage of grease that the Extractors cannot remove, oering many benets to the
owner/operator. The UV Lamps are mounted in a UV Module which slide into a track downstream (aer)
the XGS Extractors (refer to Figure 2-8-1). The electronics and ballasts for UV System are mounted in a UV
Ballast Box which is located on the top of the Venlator (refer to Figure 2-8-1). The ELX-UVi Venlator is
equipped with UV Status Lights to monitor the status of the UV System, and Safety Interlocks to protect
operators from exposure to UV light (refer to Figure 2-7-1).
For proper UV operaon, the Venlators must be maintained in good working order. The UV system must
be inspected periodically and the lamps replaced as necessary. The Venlator, ductwork and exhaust fan
must be inspected in accordance with NFPA-96 or local guidelines, though frequency of duct cleanings
should be signicantly reduced.
UV Safety
Cauon: Exposure to UV light is harmful to skin and eyes.
The ELX-UVi Venlator is equipped with panels and Safety Interlocks to protect operators from direct
exposure to UV light. All safety precauons called for is this manual must be followed to avoid the potenal
for harm to service personnel or operators. Refer to Page 3-3 for complete descripon of safety precauons.
Turning On the Exhaust Fan and UV System
Cauon: Always turn on the exhaust fan before turning on the cooking equipment
Cauon: The chemical re exnguishing system may discharge if the exhaust fan is not on while the
cooking equipment is on or sll hot.
Cauon: Never operate the Venlator without the XGS extractors in place. Refer to Figure 2-5-2.
Operaon of the exhaust fan and UV Lamps is controlled by the Gaylord Command Center (refer to Figure
2-6-1). To start the exhaust fan and turn on the UV Lamps push START FAN on the Command Center. The
Command Center may be programmed to automacally start the exhaust fan at a specic me. Refer
to the Operaon, Maintenance and Installaon Manual for the Gaylord Command Center for complete
operang instrucons.
Note 1: The UV Lamps will not come on unless all the XGS Extractors are in place as shown in Figure 2-5-2.
Note 2: The UV Lamps will not come on unless all the UV Module Access Panels are closed and latched as
shown in Figure 2-5-2.

2-6
Chapter 2 – Principles of Operaon Page 2-6
ELX-UVi Series – Cont.
Turning On the Exhaust Fan and UV System – cont.
Note 3: ELX-UVi Series Venlator may be equipped with a Gaylord Electric Balancing Damper, designated
“GEBD” in the Venlator model number, or a Gaylord combinaon Fire/Balancing Damper, designated
“GFBD” in the model number. The Venlator Model number can be found on the Venlator Nameplate
(Refer to page 2-12 informaon on Balancing Dampers and page 5-5-2 for a sample of the nameplate). If
the Venlator includes one of these dampers, when the fan is started the damper moves from the closed
to the open posion and it will take approximately 45 seconds for the exhaust air to come up to 100%.
Note 4: The ELX-UVi Series Venlator may be equipped with a Gaylord Autostart Controller that automacally
turns on the exhaust fan if the temperature at the exhaust duct collar exceeds 90° F. If the Venlator does
include Autostart, the Venlator will include one or more sensors mounted in the canopy (Refer to Figure
2-5-2). Refer to the Gaylord AutoStart Technical Manual for Operaon and Maintenance.
Figure 2-6-1
Gaylord Command Center

2-7
Chapter 2 – Principles of Operaon Page 2-7
ELX-UVi Series – Cont.
Turning On the Exhaust Fan and UV System – cont.
UV Status Lights
Each Venlator secon contains a bank of UV Status Lights to monitor the UV System (refer to Figure
2-7-1). There are three colored lights, Green, Yellow and Blue. They indicate the system status as follows:
1. Green On: The UV system is operang properly.
2. Yellow On: One or more UV Lamps are not operang.
3. Blue On: One or more XGS Extractors are not in place and/or one or more UV Module Access Panels
are not latched properly, or the internal temperature of the Ballast Box has exceeded 118° F. and the
High Temperature Shutdown Controller acvated. During this mode the UV System is not operang,
and is in a Uvi System Standby mode unl the cause has been corrected.
Note: If either the Yellow or Blue light are on refer the Troubleshoong secon of this manual beginning
on page 4-1 for correcve acon.
Figure 2-7-1
UV Status Lights
Grease Extracon
Grease is removed from the exhaust air by combinaon of the Gaylord Model XGS Extractors and the UV
Lamps (Refer to Figure 2-8-1). The hot contaminate-laden air rising from the cooking surface is drawn
through the Extractors where a high percentage of the grease and other parculate are extracted from
the airstream. As the air enters the Plenum chamber, the grease parcles are exposed to the ultraviolet
light which oxidizes the parcles into a light gray powder which are deposited on the Lamps, the Plenum
chamber and in the exhaust duct. Some powder may exhaust out the exhaust fan. The extracted liquid
grease will drain down the Extractors and into the Grease Guer which then drains to the Grease Collecon
Drawer. The scky grease will remain in the Extractors unl cleaned.
The Gaylord Industries Model XGS Extractor is designed to deliver the absolute opmum in collecon
eciency at the lowest possible pressure drop. The Extractors are ETL Recognized as part of the ELXC-UVi
Venlator. They are constructed of corrosion resistant stainless steel.
UVi
SYSTEM
ON
UVi
LAMP
FAILURE
UVi
SYSTEM
STANDBY
20385
SYSTEM STATUS
UVi Ventilator
Integrated DCV

2-8
Chapter 2 – Principles of Operaon Page 2-8
ELX-UVi Series – Cont.
Turning On the Exhaust Fan and UV System – cont.
Figure 2-8-1
Grease Extracon
Figure 2-8-2
Model ELX-UVi Series Cutaway
Grease Drawer
Optional
Rear Capture Wall
UV Lamp Module
Static Tap Cover
UV Module Access Doors
Access to Ballast Box
UV Status Lights
Autostart Sensor
Grease Laden Air
Balancing Damper
Gaylord Model
XGS Extractor
Grease Gutter
Grease Drawer
Ballast Box Accessible
from Underside UV Lamps
UV Lamp Module

2-9
Chapter 2 – Principles of Operaon Page 2-9
ELX-UVi Series – Cont.
Turning O the Exhaust Fan and UV System
Cauon: Always turn o the cooking equipment and allow to cool before turning o the exhaust fan.
The chemical re exnguishing system may discharge if the cooking equipment is on or hot when the
exhaust fan is o.
At the end of the cooking day, turn o the cooking equipment and allow to cool before turning o the
exhaust fan. To stop the exhaust fan and turn o the UV Lamps push STOP FAN on the Gaylord Command
Center. The Command Center may be programmed to automacally turn o the exhaust fan at a specic
me. Refer to the Operaon, Maintenance and Installaon Manual for the Gaylord Command Center for
complete operang instrucons.
Note 1: If the Venlator includes a Gaylord Autostart Controller the exhaust fan will stay on if the
temperature at the duct collar is above 90° F. Once the temperature drops below 90° F., the fan will
connue to run for 60 minutes and then shut o.
Note 2: If the Venlator is equipped with a Gaylord Electric Balancing Damper, designated “GEBD” or a
Gaylord combinaon Gaylord Fire/Balancing Damper, designated “GFBD”, when the fan is turned o the
damper will move from the open to closed posion and remain closed unl the exhaust fan is re-started.
Closing the damper saves building energy by not allowing condioned air from draing up the exhaust
duct, or in cold climates prevenng cold air from coming down the duct and into the kitchen.
Cleaning the Venlator
At the end of the cooking day, or at periodic intervals, depending upon the type of cooking, the XGS
Extractors must be removed and cleaned. They may be removed by hand or by use of an Extractor Removal
Tool (Refer to Figure 2-9-1). In addion the Grease Drawer must be removed and cleaned and the Grease
Guer wiped out. The UV Lamps should be inspected weekly and cleaned if necessary. Refer to Page 3-1
for detailed instrucons.
Figure 2-9-1
Cleaning
Plenum Area
Grease Drawer
Gaylord Model XGS
Extractor
Grease Gutter
UV Lamps
UV Lamp Module

2-10
Chapter 2 – Principles of Operaon Page 2-10
ELX-UVi Series – Cont.
Fire Protecon
Fire Damper
The ELX-UVi Series Venlator may be equipped with a combinaon Gaylord Fire/Balancing Damper,
designated “GFBD” in the Venlator model number. If equipped, a 250°F. thermostat will be mounted at
the entrance of the exhaust duct collar (Refer to Figure 2-11-1). In the event of a re and if the thermostat
reaches 250°F., the following will occur:
1. The re damper will close prevenng re from extending into the exhaust duct and fan.
2. The exhaust and supply fans will shut o.
3. The UV Lamps will shut o.
4. If the Command Center is wired to a building re alarm system the alarm will acvate.
5. If the Command Center is wired to a building management system it will nofy of a re condion.
6. Once the thermostat cools below 250°F., plus a 5 minute cool down, the exhaust and supply fans
can be re-started by pushing the START FAN on the Command Center.
Fire Exnguishing Systems
The Naonal Fire Protecon Associaon Standard 96 (NFPA-96) and the Internaonal Fire Code (IFC)
requires the use of a Fire Exnguishing System to cover the cooking surfaces, Venlator exhaust plenums
(the area behind the grease extractors), and the exhaust duct (Refer to Figure 2-11-1). Upon acvaon of
the Fire Exnguishing System the follow will occur:
1. Fire exnguishing agent will discharge through the cooking equipment nozzles, the plenum nozzle(s)
and the duct nozzle(s).
2. The protected cooking equipment and possibly other cooking equipment will shut o. Refer to the
above referenced codes for specic equipment that must shut o.
3. If the Fire Exnguishing System is wired to a building re alarm system the alarm will acvate.
4. If the Fire Exnguishing System is wired to a building management system it will nofy of a re
condion.
5. The Fire Exnguishing System should be wired to the Gaylord Command Center. If it is the following
will occur:
a) If the exhaust and supply fan were on the exhaust fan would stay on and the supply fan
would shut o. If the exhaust and supply fans were o, the exhaust fan would come on and
the supply fan would stay o.
b) If the Venlator is equipped with a Gaylord Electric Balancing Damper (model GEBD) or a
Gaylord Fire/Balancing Damper (model GFBD) the damper will open.
6. Aer discharge, the Fire Exnguishing System must be recharged and cered by a re system
contractor before the cooking equipment can be turned back on.