GAYLORD CG Series User manual

THE
GAYLORD VENTILATOR
TECHNICAL MANUAL
FOR THE “CG” & “RG” SERIES
WATER-WASH VENTILATORS
WITH
MODEL C-5000 COMMAND CENTER
ANILLINOISTOOLWORKS COMPANY
10900 S.W. AVERY STREET • TUALATIN, OREGON 97062 U.S.A.
1-800-547-9696 • 503-691-2010 • FAX: [phone] • email: [e-mail]
GAYLORD INDUSTRIES
EFFECTIVE DATE 4-05

To Our Customers. . .
Congratulations on your recent purchase of a Gaylord
Ventilator. We are proud to be able 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 indus-
try.
If you have other Gaylord equipment such as a Gay-
lord Heat Reclaim Unit, Quencher Fire Protection Sys-
tem, or RoofTop 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. We are more than happy to help.
Sincerely,
Edson C. Gaylord
President/CEO
GAYLORD INDUSTRIES
10900S.W.AVERY STREET•TUALATIN,OREGON 97062U.S.A.
1-800-547-9696• 503-691-2010• FAX:[phone]
COMMERCIAL KITCHEN EXHAUST SYSTEMS • FIRE PROTECTION • HEAT RECLAIM • UTILITY DISTRIBUTION • ROOF TOP UNITS • POLLUTION CONTROL

1
"CG"SERIESPRINCIPLEOFOPERATION............................................................................................. 3-5
"RG"SERIESPRINCIPLEOFOPERATION............................................................................................. 6-8
INTERNALFIREPROTECTION ................................................................................................................ 7-8
DAILYOPERATION .................................................................................................................................... 9
PREVENTIVEMAINTENANCE ................................................................................................................. 10
DETERGENTPUMPOPERATION ............................................................................................................ 11
DETERGENTFORTHEWASHSYSTEM ................................................................................................. 12
MODELC-5000SERIESCOMMANDCENTER-INSTRUCTIONS.........................................................13-15
ENGINEERINGDATA ...........................................................................................................................16-17
TROUBLE-SHOOTING:
EXHAUST..................................................................................................................................... 18
GREASEEXTRACTION ............................................................................................................... 18
EXHAUSTFAN............................................................................................................................. 18
C-5000COMMANDCENTER ....................................................................................................... 19
FIRECYCLE ................................................................................................................................ 19
WASH SYSTEM .......................................................................................................................... 19
BACKFLOWPREVENTOR .......................................................................................................... 20
VACUUMBREAKER ................................................................................................................... 20
RPDEVICE.................................................................................................................................. 20
DRAINS........................................................................................................................................ 21
C-5000STATUSLIGHTCHART.................................................................................................... 21
MEASURINGINLETSLOTVELOCITY ..................................................................................................22-24
OPTIONALCONTINUOUSCOLDWATERMIST ....................................................................................... 25
PARTSLISTS:
MODELGPC-5000SERIESCONTROLCABINET........................................................................ 26
MODELGPC-5000-RPSERIESCONTROLCABINET .................................................................. 27
MODELGPC-5000-RP-SSERIESCONTROLCABINET .............................................................. 28
OPTIONALCONTINUOUSCOLDWATERMIST .......................................................................... 29
MODELGPC-5000SERIESCONTROL........................................................................................ 30
DAMPERCONTROLSWITCH...................................................................................................... 31
DETERGENTPUMP .................................................................................................................... 32
MISCELLANEOUSVENTILATORPARTS .................................................................................... 33
WIRINGDIAGRAMS .............................................................................................................................34-41
STANDARDVENTILATORMODELS ........................................................................................................ 42
METRICCONVERSIONCHART................................................................................................................ 43
START-UPINSPECTIONREPORT ........................................................................................................... 44
LIMITEDWARRANTY .....................................................................................................Insidebackcover `1
TABLE OF CONTENTS

U.S. PATENT NUMBERS
3,247,776; 3,611,909; 3,785,124; 3,788,041;
4,072,143; 4,266,529; 4,281,635; 4,356,870
Other U.S. Patent applications pending.
U.S. Trademark Registration 800,820.
AUSTRALIA PATENT NUMBERS
481,510; 465,037
BRAZIL PATENT APPLICATION PENDING
CANADA PATENT NUMBERS
744,166; 759,710; 926,689; 940,761;
1,004,155; 1,086,126; 1,139,151; 968,559
Canada Patent application pending.
FRANCE PATENT NUMBERS
7,227,217; 7,332,718; 2,351,362
France Patent applications pending.
France Trademark: 740,296
GERMANY PATENT NUMBERS
2,346,196; 1,604,173; 3,152,501
German Patent application pending.
GREAT BRITAIN PATENT NUMBERS
1,350,857; 1,396,065; 1,558,537
JAPAN PATENT NUMBERS
650,269; 797,637; 917,077; 1,045,507;
726,884; 1,580,556
Japan Patent application pending.
Japan Trademark registration 874,453
NEW ZEALAND PATENT NUMBERS
162,024; 167,964
New Zealand Trademark #B 95557
SWEDEN TRADEMARK
120,229
SWITZERLAND PATENT NUMBERS
560,358
2
PATENTS
© Copyright 2005, Gaylord Industries
ALL RIGHT RESERVED. NO PART OF THIS BOOK MAY BE REPRO-
DUCED, STORED IN A RETRIEVAL SYSTEM, OR TRANSMITTED IN ANY
FORM BY AN ELECTRONIC, MECHANICAL, PHOTOCOPYING, RECORD-
ING MEANS OR OTHERWISE WITHOUT THE WRITTEN PERMISSION
OF GAYLORD INTERNATIONAL COPYRIGHT 2005.
Themanufacturerreservestherighttomodifythematerialsandspecificationsresultingfromacontinuing
programofproductimprovementor the availability ofnewmaterials.
AdditionalCopies$15.00

GREASEEXTRACTION
TheGaylord“CG”SeriesVentilatorextractsupto95%ofthe
grease, dust and lint particles from the airstream passing
throughit,whenoperatedandmaintainedinaccordancewith
designspecifications.
The hot, contaminant-laden air rising from the cooking
surfacemergeswiththehighervelocityairthatwipesthefront
ofthecookingequipmentandextends,likeanairblanket,from
the front edge of the cooking equipment to the air inlet of the
ventilator. As the air moves through the ventilator at a high
speed,itisforcedtomakeaseriesofturnsaroundfourbaffles.
Asthehighvelocityairturnsaroundeachbaffle,theheavier-
than-airparticlesofgrease,dustandlintarethrownoutofthe
airstreambycentrifugalforce. Theextractedgrease,dustand
lintarecollectedintheinterioroftheventilator,remainingout
of the airstream until removed daily by the wash cycle.
Baffle #1
This baffle, located at the air entrance of the ventilator, is of
airplane wing type construction, and in its normally open
position,actsastheprimaryextractingbaffle. (RefertoFigure
1) This baffle is hinged at each end and, in case of fire, is
automaticallyclosedbythermostaticaction. Thereisasmall
slopedgreasecollectinggutteronthebacksideofthedamper
whichdrainsoffliquefiedgrease,preventingitfromre-entrain-
ing into the airstream.
3
"CG" SERIES VENTILATOR PRINCIPLE OF OPERATION
Baffle #2
Thisbaffleislocatedontheinteriorbackwalloftheventilator
and is a stainless steel pipe, equipped with brass spray
nozzles on 8" to 10" centers. (Refer to Figure 1) During the
wash cycle, hot detergent water is released through the
nozzles. If the ventilator’s automatic fire control system is
activated,firesmotheringwatersprayisalsoreleasedthrough
the spray nozzles.
Baffle #3
Thisbaffleislocatedonthebackoftheinspectiondoors. This
baffleisalsoagreasecollectinggutter,collectinggrease,dust
and lint extracted by the ventilator - preventing the contami-
nantsfromdropping back intothehighvelocity airstream.
Baffle #4
Thisbaffleislocatedontheinteriorbackwalloftheventilator
and is a stainless steel pipe equipped with brass spray
nozzleson8"to10"centers. Baffle#4isinter-connectedwith
baffle#2,andperformswashingandfireprotectionfunctions
simultaneouslywithbaffle#2.
NOTE: Some ventilators may be equipped with optional
“Custom Air” baffles (shown dotted) which reduces the
exhaustvolumewherethebaffleoccurs.
NOTE: Some ventilators may be equipped with optional
continuous cold water mist. Refer to Page 25 for details.
FIG. 1
GREASE EXTRACTION

FIG. 2
VENTILATOR CONTROL CABINET
MODEL GPC-5000 SERIES
4
"CG" SERIES VENTILATOR PRINCIPLE OF OPERATION
WASHCYCLE
Thewashcycleisactivatedeachtimetheexhaustfanisshut
off by pushing the “Start Wash” button on the Command
Centeror,ifequippedwithoptionaltimeclock(“TC”Series),as
programmedontheclock. The“WashOn”lightisilluminated
each time the wash cycle comes on, and hot, detergent
injectedwaterisreleasedinto theinterioroftheventilator for
the time set on the wash timer.
This hot detergent water washes the day’s grease, dust and
lint accumulation from the interior of the ventilator flushing it
down to the main gutter which slopes to a pre-flushed drain
which leads to the building drain system. Spray nozzles are
locatedon8"to10"centersonthetwowashpipes(BAFFLES)
mounted on the interior back wall of the ventilator. (Refer to
Figure 3) At the end of the wash cycle, the water is
automaticallyshutoff,andtheinterioroftheventilatorisclean
- ready for the next day’s operations.
There are three standard wash cycle times that are set
dependinguponthetypeofcookingequipmentbeingused.
Thesettingsare3minutesforlight-dutyequipment,5minutes
for medium-duty equipment, and 9 minutes for heavy-duty
equipment. However,adequatecleaningisdependentupon
water pressure, water temperature, daily grease accumula-
tion,thelengthofthewashcycle,frequencyofwashcycleand
the type of detergent being used. It may be necessary to
increase the wash time to the next higher setting to achieve
propercleaning.
FIG. 3
WASH CYCLE
SPRAY NOZZLES
PRE-FLUSH LINE
HOT DETERGENT
WATER SPRAY
MAIN GUTTER
DRAIN LINE
FULL LENGTH
HINGED INSPECTION
DOORS
COMMANDCENTER
MODELC-5000
SERIES

5
INTERNALFIREMODE
Automatic internal fire protection is accomplished by the
actionofthethermostats,whicharelocatedatthepointwhere
theductworkjoinstheventilator. Whenthetemperatureofthe
conveyingairstream,whichmustpassoverthethermostats,
reaches 350°F (177°C), the system is activated, and the
followingoccurs:
1. Thehinged,grease-extractingfiredamperbaffleattheair
inletoftheventilatorcloses—stopping thecombustion-
supporting,naturaldraftthroughthe ventilator.(Referto
Figure6)
2. Theexhaustfanservingtheventilatorisshutoff,stopping
thecombustion-supporting,mechanicallyinduceddraft.
The supply fan is also shut off.
3. Fire-smotheringwatersprayisreleasedintotheinteriorof
theventilatorthroughthecleaningsystem.
4. The “Fire” light on the Command Center illuminates.
Waterwillrununtilthethermostatcoolsbelow350°F(177°C),
andthen continuefor a5 minutecool downcycle. Thewater
maybeshutoffpriortotheendofthe5minutecooldowncycle
by pushing the “Cancel” button located inside the electrical
compartmentofthecontrolcabinet. Afterthewaterhasshut
off,thedamperscanberesetbypushingtheresethandleon
thedampercontrolswitch(RefertoFigure5),andtheexhaust
fan(s) re-started by pushing the “Start Fan” button on the
CommandCenter.
EXTERNALFIREMODE
A break glass fire switch is optional (see Figure 4) and if
provided,wouldnormallybelocatedattheexitofthekitchen.
Pulling the fire switch shuts off the supply fan and starts the
exhaustfanifitwasoff,releasesfiresmotheringwaterspray
into the interior of the ventilator and the “Fire” light on the
Command Center flashes. During this time, the fire damper
remainsopen,andtheexhaustfanremainsontohelpremove
smoke, heat, etc. If the fire intensified and the thermostat
reached 350°F, the fire damper would then close and the
exhaustfan wouldshut off.
Toresumenormaloperations,openthefireswitchandflipthe
toggle switch to the position marked “normal”. Replace the
glass rod and close the cover.
"CG" SERIES VENTILATOR PRINCIPLE OF OPERATION
TESTINGINTERNALFIREMODE
Theinternalfireprotectionsystemmaybetestedperiodically
bypushingthe“FireTestSwitch”whichislocatedinsidethe
electrical compartment of the control cabinet. Pushing this
switch duplicates thermostatic action. CAUTION: Before
pushing the “Fire Test Switch”, check to see if the internal
fire protection system is tied to the building alarm system.
TORESUMENORMALOPERATION
1. Todiscontinuethe5minutecooldowncycleatanypoint
duringthecycle,pushthe“Cancel”buttonlocatedinside
theelectricalcompartment.
2. Reset all damper control switches.
3. Push the “Start Fan” button on the Command Center.
SURFACEFIREPROTECTION
The Gaylord Ventilator may be equipped with surface fire
protectioneitherdryorwetchemical,ortheGaylordQuencher
System. In the event of a fire, the surface fire protection
system would normally be activated and discharged prior to
theventilator’sinternalfireprotection. Thesesystemsmaybe
intertied with the ventilator control cabinet to activate the
ExternalFireMode. Ifthefireisunusuallysevereorthesurface
fire protection system malfunctions, the ventilator’s internal
fireprotectionsystemwouldactivate,thusprovidingasecond
levelofdefense.
FIG. 6
FIRE CYCLE
FIG. 4
BREAK GLASS FIRE SWITCH
C-1357A SERIES
FIRE QUENCHING
WATER SPRAY
WATER BARRIER
FIRE DAMPER
BAFFLE IN CLOSED
POSITION
DRAIN LINE
DAMPER CONTROL SWITCH
IS ACTIVATED CLOSING
FIRE DAMPER BAFFLE
AND SHUTTING OFF
EXHAUST FAN
RESET HANDLE
SURFACE FIRE
PROTECTION NOZZLE
(OPTIONAL)
350°F THERMOSTAT
CAUTION:
Incaseofseverefireandthethermo-
stats located in the duct collar are
activated, and as a precautionary
measure, it is recommended that
the thermostats be replaced.
FIG. 5
DAMPER CONTROL SWITCH
C-61 SERIES

FIG. 7
GREASE EXTRACTION
6
"RG" SERIES VENTILATOR PRINCIPLE OF OPERATION
GREASEEXTRACTION
TheGaylordRoyal“RG”SeriesVentilatorextractsupto95%
ofthegrease,dustandlintparticlesfromtheairstreampassing
throughit,whenoperatedandmaintainedinaccordancewith
designspecifications.
Thehot,contaminant-ladenairrisingfromthecookingsurface
merges with the higher velocity air that wipes the front of the
cookingequipmentandextends,likeanair blanket,fromthe
front edge of the cooking equipment to the air inlet of the
ventilator. As the air moves through the ventilator at a high
speed, it is forced to make a series of turns around three
baffles. Asthehigh velocityairturnsaroundeachbaffle,the
heavier-than-airparticlesofgrease,dustandlintarethrownout
of the airstream by centrifugal force. The extracted grease,
dust and lint are collected in the interior of the ventilator,
remainingoutoftheairstreamuntilremoveddailybythewash
cycle.
Baffle #1
This baffle is located at the air inlet of the ventilator and is
formedaspartoftheinspectiondoor. Thereisasmallgrease
collectinggutteronthebacksideofthebafflewhichdrainsoff
liquefied grease, preventing it from re-entraining into the
airstream.
Baffle #2
This baffle is on the interior back wall of the ventilator and
includes a square stainless steel pipe, equipped with brass
spraynozzleson8"to10"centers. Duringthewashcycle,hot
detergent water is released through the nozzles. If the
ventilator’s automatic fire control system is activated, fire
smothering water spray is also released through the spray
nozzles.
Baffle #3
This baffle is located on the back of the inspection door.
NOTE: Some ventilators may be equipped with optional
“Custom Air” baffles (shown dotted) which reduces the ex-
haustvolumewherethebafflesoccur.
NOTE: Some ventilators may be equipped with optional
continuous cold water mist. Refer to Page 25 for details.

On fuse link activated ventilators, water will continue to run
until it is shut off by the hand valve located inside the
ventilator control cabinet. The fire damper must then be
reset by replacing the fuse links. IMPORTANT NOTE: All
replacementfuselinksmustbeULListedandratedfor280°F
(138°C).
The hand valve may then be reopened and the exhaust fan
maythenbere-startedbypushingthe“StartFan”buttonon
the Command Center.
WASHCYCLE
Thewashcycleisactivatedeachtimetheexhaustfanisshut
off by pushing the “Start Wash” button on the Command
Centeror,ifequippedwithoptionaltimeclock(“TC”Series),as
programmedontheclock. The“WashOn”lightisilluminated
each time the wash cycle comes on, and hot, detergent
injectedwaterisreleasedinto theinterioroftheventilator for
the time set on the wash timer.
This hot detergent water washes the day’s grease, dust and
lint accumulation from the interior of the ventilator flushing it
downtothemaingutterwhichslopestothepre-flusheddrain
which leads to the building drain system. Spray nozzles are
locatedon8"to10"centersonthewashpipemountedonthe
interior back wall of the ventilator. (Refer to Figure 9) At the
endofthewashcycle,thewaterisautomaticallyshutoff,and
theinterioroftheventilatorisclean - readyforthenextday’s
operations.
There are three standard wash cycle times that are set
dependinguponthetypeofcookingequipmentbeingused.
Thesettingsare3minutesforlight-dutyequipment,5minutes
for medium-duty equipment, and 9 minutes for heavy-duty
equipment. However,adequatecleaningisdependentupon
water pressure, water temperature, daily grease accumula-
tion,thelengthofthewashcycle,frequencyofwashcycleand
the type of detergent being used. It may be necessary to
increase the wash time to the next higher setting to achieve
propercleaning.
FIG. 10
DAMPER CONTROL SWITCH
MODEL C-61-GXB-RG
USED WITH FUSE LINK
ACTIVATED SYSTEMS
7
"RG" SERIES VENTILATOR PRINCIPLE OF OPERATION
FIG. 8
VENTILATOR CONTROL CABINET
MODEL GPC-5000 SERIES
FIG. 9
AUTOMATIC WASH CYCLE
INTERNAL FIRE MODE
The ventilator is equipped with a spring loaded fire damper
locatedattheductcollar. The internalfireprotectionsystem
is automatically activated whenever the fuse link or optional
electrical thermostat reaches 280°F (138°C). Upon activa-
tion the following occurs:
1. The fire damper closes — stopping the combustion-
supporting, natural draft through the ventilator. (Refer
to Figure 13)
2. The exhaust fan serving the ventilator is shut off,
stopping the combustion-supporting, mechanically in-
duced draft. The supply fan is also shut off.
3. Fire-smotheringwatersprayisreleasedintotheinterior
of the ventilator through the cleaning system.
4. The “Fire” light on the Command Center illuminates.
FIRE DAMPER
HINGED INSPECTION
DOOR
HOT DETERGENT
WATER SPRAY
SPRAY
NOZZLES
DRAIN LINE
COMMANDCENTER
MODELC-5000
SERIES

INTERNALFIREMODE(CONTINUED)
Onthermostaticallyactivatedsystems,thewaterwillrununtil
thethermostatcoolsbelow280°F(138°C),andthencontinue
fora5minutecooldowncycle. Thewatermaybeshutoffprior
to the end of the 5 minute cool down cycle by pushing the
“Cancel”buttonlocatedinsidetheelectricalcompartmentof
thecontrolcabinet. Afterthewaterhasshutoff,thedampers
canberesetbypullingtheresethandleonthedampercontrol
switch(RefertoFigure11),andtheexhaustfan(s)restartedby
pushing the “Start Fan” button on the Command Center.
EXTERNALFIREMODE
Abreakglasstypefireswitchisoptionalandifprovided,would
normally be located at the exit of the kitchen. Pulling the fire
switchshutsoff supplyfanandstartstheexhaustfanifitwas
off,releasesfiresmotheringwatersprayintotheinteriorofthe
ventilator, and the “Fire” light on the Command Center
flashes. Duringthis time,thefiredamperremainsopen,and
theexhaustfanremainsontohelpremovesmoke,heat,etc.
If the fire intensified and the fuse link or thermostat reach
280°F(138°C), the fire damper would then close and the
exhaustfan wouldshut off.
Toresumenormaloperations,openthefireswitchandflipthe
toggleswitchtothepositionmarked“normal”. (RefertoFigure
12) Replace the glass rod and close the cover.
FIG. 13
FIRE CYCLE
8
"RG" SERIES VENTILATOR PRINCIPLE OF OPERATION
FIG. 11
DAMPER CONTROL SWITCH
MODEL C-61-GXSH-RG
USED WITH THERMOSTATICALLY
ACTIVATED SYSTEMS
TESTINGINTERNALFIREMODE
Theinternalfireprotectionsystemmaybetestedperiodically
bypushingthe“FireTestSwitch”whichislocatedinsidethe
electrical compartment of the control cabinet. Pushing this
switch will cause the following:
ThermostaticallyActivated FuseLinkActivated
1. Water turns on and 1. Water turns on and
will run for 5 minutes. will run for 5 minutes.
2. Exhaust fan shuts off. 2. Exhaust fan shuts off.
3. Dampercloses. 3. Fire light illuminates.
4. Fire light illuminates.
CAUTION: Beforepushingthe“FireTestSwitch”,checkto
seeifthe internalfireprotection systemistied tothebuilding
alarm system.
TORESUMENORMALOPERATION
1. Todiscontinuethe5minutecooldowncycleatanypoint
duringthecycle,pushthe“Cancel”buttonlocatedinside
theelectricalcompartment.
2. Reset all damper control switches, if thermostatically
operated.
3. Push the “Start Fan” button on the Command Center.
SURFACEFIREPROTECTION
The Gaylord Ventilator may be equipped with surface fire
protectioneitherdryorwetchemical,ortheGaylordQuencher
System. In the event of a fire, the surface fire protection
system would normally be activated and discharged prior to
theventilator’sinternalfireprotection.Thesesystemsmaybe
intertied with the ventilator control cabinet to activate the
ExternalFireMode. Ifthefireisunusuallysevereorthesurface
fire protection system malfunctions, the ventilator’s internal
fireprotectionsystemwouldactivate,thusprovidingasecond
levelofdefense.
FIG. 12
BREAK GLASS FIRE SWITCH
C-1357A SERIES
FIRE DAMPER IN CLOSED POSITION
MELTED 280°F FUSE LINK
HINGED INSPECTION
DOOR
FIRE
QUENCHING
WATER SPRAY
DRAIN LINE
(OPTIONAL) SURFACE
FIRE PROTECTION
NOZZLE

DAILYOPERATION
Allfunctionsoftheventilator,suchasstartingtheexhaustfan,
startingthewashcycle,etc.,arecontrolledbytheCommand
Center located on the control cabinet. Refer to Pages 13
through 15 for detailed instructions on the operation of the
CommandCenter.
Starting the Exhaust Fan
To start the exhaust fan push the “Start Fan” button on the
CommandCenter. IftheCommandCenterisequippedwitha
timeclock(“TC”Seriescontrol),itmaybeprogrammedtostart
automatically at any desired time. (Refer to programming
instructionsonPage15forautomaticoperations.) The“Fan
On”lightwillilluminatewhentheexhaustfanisrunning. Itis
importanttostarttheexhaustfanbeforeturningonthecooking
equipment.
Stopping the Exhaust Fan and
Starting the Wash Cycle
CAUTION: The cooking equipment must be shut off prior to
shutting off the exhaust fan. Failure to do this will cause
excessive heat buildup and could cause the surface fire
protection system to discharge.
1. To start the wash cycle push the “Start Wash” button
on the Command Center. If the Command Center is
equippedwithatimeclock(“TC”Seriescontrol),itmaybe
programmed to start automatically at any desired time.
Refer to programming instructions on Page 15 for auto-
matic operations. When the wash cycle is activated the
“Wash On” light illuminates and the following occurs:
A. Theexhaustfanshutsoff.
B. Hotdetergentwaterisautomaticallyreleasedintothe
interioroftheventilatorforthelengthoftimesetonthe
washtimer. Thelengthofthewashcyclemaybeset
for 3 different wash times, 3 minutes for light-duty
equipment, 5 minutes for medium-duty equipment,
and9minutesforheavy-dutyequipment.
FIG. 14
VENTILATOR CONTROL CABINET
MODEL GPC-5000 SERIES
9
DAILY OPERATION
However,adequatecleaningisdependentuponwater
pressure,watertemperature,dailygreaseaccumula-
tion,thelengthandfrequencyofthewashcycle,and
thetypeofdetergentbeingused. Refertowashtiming
instructions on Page 14 for setting the length of the
wash cycle.
NOTE: Some control cabinets are equipped with a
lowdetergentswitch. Ifsoequipped,the“WashOn”
light will flash if the detergent tank is empty or if the
detergentpumpismalfunctioninganddetergentisnot
pumping.
2. Afterthewashcycleis completed, wipetheexposedfront
surfaceofthebaffleattheairinletoftheventilator,aswell
asother exposedexterior surfaces. (Referto Figure15)
3. The ventilator is now clean. The exhaust fan may be
restarted by pushing the “Start Fan” button on the
CommandCenter.
Inveryheavycookingoperationsitmaybenecessarytowash
theventilator(s)morethanonceaday. Ifequippedwithatime
clock (Model C-5000-TC Series) the Command Center is
capableofbeingprogrammedtostartthewashcycleseveral
timeswithina24-hourperiod. Refertoprogramminginstruc-
tions on Page 15.
NOTE: Forproperoperation of thewashsystem:
WaterPressure 40 psi min. - 80 psi max.
(2.8Kg/cm2- 5.6Kg/cm2)
Watertemperature 140°F min. - 180°F max.
(60°Cmin.-82°C max.)
NOTE: Theventilatorwashsystemisdesignedtoremovedaily
accumulations of grease within the extraction
chamber. If the ventilator is not washed a minimum of once
during a cooking day, a grease buildup could accumulate
which the wash system cannot remove. If this occurs, it is
recommendedthattheventilatorbeputthroughseveralwash
cyclesbypushingthe“StartWash”buttonontheCommand
Center. Ifthisdoesnotremovethegrease,itwillbenecessary
toremovethegreasemanuallybyusingascrapingtool,such
as a putty knife, or retain the services of a commercial hood
cleaningservicetosteamcleanorpressurewashthesystem.
WARNING: Somecommercialhoodcleaningservicesblow
a fire retardant chemical into hood and duct systems. Fire
retardantchemicalsshouldneverbeappliedtoanyportionof
TheGaylordVentilator. Ifretardantisappliedtotheventilator,
it must be removed.
COMMANDCENTER
MODELC-5000
SERIES

FIG. 15
10
PREVENTIVEMAINTENANCE
PREVENTIVEMAINTENANCE
Thefollowingshouldbecheckedperiodicallyinordertokeep
TheGaylordVentilatoroperatingatdesignefficiency:
Weekly
1. Thedetergenttankshouldbecheckedatleastweeklyand
keptfullwitharecommendeddetergent. (RefertoPage12)
Monthly
1. Thedetergent system fittings should be checkedatleast
monthly. This is an airtight system and fittings should be
tight. (For complete details refer to the Detergent Pump
section on Page 12.)
2. At least monthly, at the conclusion of a wash cycle, open
theinspectiondoorsoftheventilatorandchecktoensure
thattheinteriorhasbeencleanedofgrease,dust,andlint.
(Refer to Figure 15) If overall cleaning appears to be
inadequate, refer to “Trouble-Shooting of the Wash Sys-
tem”, Page 19.
3. The maingrease gutter oftheventilatorshouldbechecked
at least monthly to remove any foreign material such as
paper towels, order chits, etc.
Every Six Months
1. Exhaustfan(s)shouldbecheckedeverysixmonthsforbelt
tightness, belt alignment, and lubrication of necessary
movingparts.
NOTE: Abluelithiumbasedgreaseisbestsuitedforhigh
heatandspeedbearinglubrication.
2. Checkforpropervelocityatairinletslot. RefertoPages22
through24formethodofcheckingvelocity.
3. Test the "Internal Fire Mode" (electrically activated
dampersonly)tocheckforproperdamperclosure. Refer
to page 5. Reset damper when test is complete.
4. Detergenttankandfootvalveshouldbecleanedeverysix
months.
NOTE: Annual and semi-annual inspections are
recommended by the NFPA, Standard No. 96, Chapter 8.
Factory trained service agencies are certified by Gaylord
Industries, Inc. to perform these inspections. For the name
andphonenumberofyournearestagentcall1-800-547-9696.
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INSPECTIONAND CLEANINGREQUIREMENTS
The1998 editionofNFPA-96(Standard forVentilationControl
and Fire Protection of Commercial Cooking Operations)
requirethathoods, ductsandexhaust fansbeinspectedby a
properlytrained,qualified andcertifiedcompanyorperson(s)
inaccordancewiththe following table.
Upon inspection, if found to be contaminated with deposits
fromgrease-ladenvapors,theentire exhaustsystemshall be
cleaned by a properly trained, qualified, and certified com-
panyorperson(s) acceptable totheauthority havingjurisdic-
tioninaccordance.
When a vent cleaning service is used, a certificate showing
date of inspection or cleaning shall be maintained on the
premises. Aftercleaningiscompleted,the ventcleaningcon-
tractor shall place or display within the kitchen area a label
indicating the date cleaned and the name of the servicing
company. It shall also indicate areas not cleaned.

FIG. 16
11
DETERGENT PUMP OPERATION
PREVENTIVEMAINTENANCE
Aswith anypiece offine equipment,a reasonableamountof
care must be taken to keep it in good working order:
1. Caution should be taken not to spill detergent on the
exteriorofthepump.
2. A periodic check should be made of all fittings
toguaranteetheirtightness.
NOTE: Thedetergentpump motorhassealed bearingsand
willnotrequirelubrication.
DESCRIPTION
TheGaylordVentilatordetergentpumpisanintegralpartofthe
wash-down system of The Gaylord Ventilator. The pump is
locatedwithinthecontrolcabinetunlessotherwisespecified.
(Refertoschematicon Pages 26through29.)
OPERATION
The detergent pump is started when the wash cycle begins.
Thepumpdrawsdetergentupfromthedetergenttank,pushing
itthroughthecoppertubingandintothehotwaterlineserving
theventilator.
NOTE: Some control cabinets are equipped with a low
detergent switch. If so equipped, the “Wash On” light will
flashifthedetergenttankisemptyorifthedetergentpumpis
malfunctioninganddetergentisnotpumping.
Initial Operation
To prime and operate the pump for the first time, it is
recommended that water be used instead of detergent to
preventdetergentfromspillingincaseofleaksatthesystem’s
fittings.
Priming The Pump
The detergent pump is self-priming. Push the pump test
switch,locatedonthejunctionboxofthemotor,andholddown
untilliquidclimbs upthevinyl tubingandfillsthe pumphead.
Thepumpwillbeoperatingproperlywhenbothupperandlower
poppetcheckscanbeseenmovingupanddownslightly. Ifthe
pump does not self-prime, an air lock may have developed
withinthepumpheadandthefollowingactionshouldbetaken:
1. Holddownpumptestswitchandloosentopcapslightlyto
allowairtobepushedout. Repeatasnecessaryuntilliquid
climbs up tube and fills pump head.
2. Ifthepumpstilldoesnotworkproperly,checkthefollowing:
A. Footvalveshouldbecleanandimmersedintheliquid.
B. Check all fittings to ensure an airtight system.
C. Poppet checks within the foot valve, pump head and
brasscheckvalveshouldbecleanandoperatingfreely.
D. Detergentlines shouldbefreeandclear.
DETERGENTFLOW
Detergentflowisinitiallyfactorysetaccordingtothepipesize
of the control cabinet (refer to chart). Generally, the factory
setting will be sufficient to provide adequate cleaning of the
ventilator. However,adequatecleaningisdependentupona
numberoffactors:
1. Temperatureofhotwater 5. Frequencyofwash
2. Waterpressure cycle
3. Dailygreaseaccumulation 6. Typeofdetergent
4. Wash cycle time
Dependinguponthesefactors,itmaybenecessarytoadjust
the detergent flow. Adjustment may be accomplished by
changing the cam to a different size. To change the cam:
1. Loosen Allen set screw on brass cam.
2. Removecamand replace with nextsizeasrequired.
3. Cam #1 minimum setting. Cam #4 maximum setting.
NOTE: Cams are available from Gaylord Industries or your
GaylordCertifiedServiceAgency.
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511#590.582.55.8574.52.41566.59.91
022#051.164.38.31277.61.32970.173.23
523#771.625.87.51678.82.62522.157.63
23 04& 4#681.655.86.61629.87.72692.183.83

12
FORMULAG-510istheonlycleanerrecommendedbyGay-
lordIndustriesforuseinthewashdownsystemofTheGaylord
Ventilator. FORMULAG-510isaconcentratedcolloidcleaner
specially formulated to remove the daily accumulation of
grease inside The Gaylord Ventilator without damaging the
rubberandsyntheticpartsofthedetergentpumpingsystem.
FORMULA G-510isbiodegradable,safeforkitchenperson-
nel, and has a variety of uses.
DILUTIONOFFORMULAG-510FOR
VENTILATORCLEANING
Normal Cleaning
Forventilatorscoveringcookingequipmentsuchasbroilers,
griddles,fryers,oranyotherheavygreaseproducingequip-
ment, fill the detergent tank with full strength FORMULA
G-510.
Light-DutyCleaning
Forventilatorscoveringlightgreaseproducingequipmentsuch
asovens,kettles,steamersandranges,fillthedetergenttank
withamixtureofonepartFORMULAG-510toonepartwater.
Cleaning the Ventilator Exterior
Mixone partFORMULA G-510to twentyparts waterinhand
spraybottle. Sprayonandwipeoff. NOTE: Onceaday,this
same solution should be used to clean the front of the fire
damperandmaingreaseextractingbaffle.
FOROTHERCLEANINGJOBS
The colloidal action of FORMULA G-510 makes it a cleaner
especiallywell-suitedforusein kitchens. Thecolloidsbreak
updirtandgreaseintomillionsoftinyparticlesthatconstantly
repel each other. These particles cannot recombine or
redepositonasurfaceandare,therefore,easilywashedaway.
FORMULA G-510 is biodegradable and contains no harsh
chemicals,yetoffersoutstandingperformanceonthetough-
est cleaning jobs.
Use a mixture of one part FORMULA G-510 to twenty parts
waterfor:
VINYL/PLASTIC/WALLS...Removesdirt,grease,
fooddepositsandfingerprints.
REFRIGERATORS...Removesdirt,spilled
milk,blood,mildewandobjectionable odors.
RESTROOMS...Add a disinfectant to clean all
fixtures, walls, floors, etc.
UseamixtureofonepartFORMULAG-510tofivepartswater
forextremelyheavygreasebuild-up,suchasonthefloorand
onequipmentarounddeep-fryers. Sprayonandrinseorwipe
off. Forextremelysoiled areas,gentleagitation, followedby
asoakingperiod,willresult in more thorough cleaning.
DON’TbeafraidtoexperimentwithFORMULAG-510because
it contains no phosphates, nitrates, enzymes, sulfates, sul-
fonates or silicates.
DETERGENT FOR THE WASH SYSTEM
LIMITEDWARRANTY
G-510 CHEMICAL DIVISION warrants that FOR-
MULAG-510willnotcausecleansingagent dam-
agetotherubberandsyntheticpartsoftheinjection
pump(“O”rings,diaphragms,washers,tubing,and
othersuchparts)usedwithTheGaylordVentilator,
HeatReclaimUnit,orPollutionControlEquipment.
G-510CHEMICALDIVISION’Sobligationunderthis
warrantyandanywarrantiesimpliedbylawshallbe
limitedtorepairingorreplacing,atitsoption,anyof
said parts which
G-510 CHEMICAL DIVISION’S examination shall
disclosetoitssatisfactiontohavebeendamagedby
the use of FORMULA G-510 for the life of the
detergentpumpingsystem. Thiswarrantyshallnot
coverdamagescausedbyanyotherdetergent. The
useofanyotherdetergentshallvoidthiswarranty.
All repairs and replacement parts under this war-
rantyshallbeF.O.B.G-510CHEMICALDIVISION’S
factory. Theownershallpaythenecessaryfreight
anddeliverycharges;also removalandinstallation
costs. Any federal, state or local taxes are also
extra. Requests for repairs or replacement parts
should be made to G-510 CHEMICAL DIVISION,
P.O.Box1149,Tualatin,Oregon97062-1149.
ThisisthesolewarrantywithrespecttoFORMULA
G-510. G-510 CHEMICAL DIVISION MAKES NO
OTHER WARRANTY OF ANY KIND WHATSO-
EVER, EXPRESSED OR IMPLIED, AND ALL IM-
PLIEDWARRANTIESOFMERCHANTABILITYAND
FITNESS FOR A PARTICULAR PURPOSE
WHICHEXCEEDTHEAFORESAIDOBLIGATION
ARE HEREBY DISCLAIMED AND EXCLUDED
FROMTHISAGREEMENT.G-510CHEMICALDI-
VISIONSHALLNOTBERESPONSIBLEFORINCI-
DENTAL OR CONSEQUENTIAL DAMAGES RE-
SULTINGFROMABREACHOFTHISWARRANTY.
IMPORTANT
IfacleansingagentotherthanFORMULAG-510isusedwith
TheGaylordVentilatorinjectionpump,itisrecommendedthat
awarrantysimilartotheabovebeobtainedfromthemanufac-
turerofsaidproduct.
Formoreinformationcontact:
20/10Products
P.O. Box 7609
Salem,Oregon97303
1-800-286-2010
FAX:[phone]
email:[email protected]

A Subsidiary of Gaylord International, Inc.
TUALATIN, OR 97062-8549
FAN ON FIRE WASH ON
START
WASH
START
FAN
OPERATINGINSTRUCTIONS
1. Push Start Fan before turning on cooking equipment.
2. At the end of the day, or whenever cooking is com-
pleted, push Start Wash. This will turn off the exhaust fan
and begin a timed wash cycle. NOTE: 24 hour kitchens
must push Start Wash at least once a day or as needed
for proper cleaning.
3. To set the length of time for the wash cycle, open this
cabinet door and set the toggle switches for either Light-
duty, Medium or Heavy-duty cooking equipment.
Extreme cooking loads may require more than one wash
cycle per day.
NOTE:If the Command Center is a S, TC or RSPC Series,
refer to additional operating instructions inside this panel.
COMMAND CENTER
C-5000-S-TC
MODEL
LOW DETERGENT
1. If Wash On light flashes detergent is low.
FIRE CONDITION
1. A flashing fire light indicates the control is in an External Fire
Mode - exhaust fan on, fire damper open, and water wash
nozzles on.
2. A solid fire light indicates the control is in an Internal Fire
Mode - exhaust fan off, fire damper closed, and water wash
nozzles on.
GAYLORD INDUSTRIES, INC.
WASH TIMES SWITCH POSITION
3MIN. LIGHT-DUTY COOKING EQUIPMENT UP
5MIN. MEDIUM-DUTY COOKINGEQUIPMENT CENTER
9MIN. HEAVY-DUTY COOKING EQUIPMENT DOWN
START
FAN
START
WASH
FAN ON FIRE WASH ON
CANCEL
SWITCH
FIRE
TEST
SWITCH
WASH 1 WASH 2 WASH 3 WASH 4 WASH 5 WASH
DELAY
MFG.BY:
GAYLORD INDUSTRIES, INC.
P.O.BOX1149
TUALATIN,OR97062
MODELNO. ______________
VOLTAGE ________________
FORM NO. C5CA
FORM NO. C5CB
DELAY TIMES
1 MIN. SHORT
15 MIN. MEDIUM
30 MIN. LONG
IFLIGHTFLASHESDETERGENT
IS LOW
C-5000-S-TC
120vac
13
MODEL C-5000 SERIES COMMAND CENTER - INSTRUCTIONS
MODEL C-5000 SERIES COMMAND CENTER -
GENERAL
The Model C-5000 Series Command Center controls all of
the functions of the Gaylord Water-Wash Ventilator.
The C-5000 Series Command Center is available in four
basic models. They are:
Model Description of Operation
C-5000 ......................Manual start fan and start wash
C-5000-TC ................ Programmabletimeclock opera-
tionofthestartfanandstartwash
functions
C-5000-S ..................Manual start fan and start wash
functions with sequence wash
feature
C-5000-TC-S ............ Programmabletime clock opera-
tionofthestartfanandstartwash
functions with sequence wash
feature
The model number of your control is indicated on the
Command Center label. Refer to Figure 17.
STARTING THE FAN AND WASH CYCLE
The Model C-5000 and C-5000-S Command Centers start
fan and start wash functions are the same. To start the
exhaust fan push the “Start Fan” button and to start the
wash cycle push the “Start Wash” button. The exhaust fan
automatically shuts off when the “Start Wash” button is
pushed.
Models C-5000-TC and C-5000-TC-S include a time clock
whichcanbeprogrammedto start the fan andwashcycleat
any desired time. (Refer to programming instructions on
Page 15.) However both of these Command Centers may
also be operated manually by pushing the “Start Fan” or
“Start Wash” buttons.
SETTING WASH CYCLE TIME FOR MODELS C-5000
AND C-5000-TC COMMAND CENTERS
To set the length of the wash cycle, open the electrical
compartment. Atthebottomofthe control chassisisathree
position toggle switch labeled Wash 1 (refer to Fig.17). Set
thetoggleswitchforeither3,5or9minutesforlight,medium
or heavy duty equipment as required (refer to “Recom-
mended Wash Time” chart on page 14 . Upon activation of
thewashcycle,thedetergentinjectedhotwaterwillwashthe
interior of the extraction chamber for the length of time
selected and then shut off.
FIG.17 FIG.18

TRAHCEMITHSAWDEDNEMMOCER
14
MODEL C-5000 SERIES COMMAND CENTER - INSTRUCTIONS
SETTING WASH CYCLE TIMES FOR MODELS
C-5000-S AND C-5000-TC-S COMMAND CENTERS
The C-5000-S and C-5000-TC-S Command Center
incorporates timers for sequence washing of groups of
ventilators with time delays between each wash group. The
length of the wash time for each group may be individually
set as dictated by the type of cooking equipment. The delay
time between each wash group allows the hot water heater
toregainif necessaryandmaybe setfor1, 15or30minutes
as required The number of wash groups on this control is
indicatedbythemodelnumber. Example: ModelC-5000-S-
3 would have three wash groups, as indicated by the suffix
“3” immediately following the “S” suffix.
TO SET TIMES:
Thereareuptofive threepositiontoggleswitchesfor setting
thewashtimeofeachgroup. Seteach toggle switch on one
of the three positions, 3, 5 or 9 minutes, as required by the
typeofcookingequipmentundertheventilators. Refertothe
recommendedwashtimechartbelow. Setthedelaytimefor
1, 15 or 30 minutes using the toggle switch labeled “Wash
Delay.”
Upon activation of the wash cycle, each group, beginning
with“Wash1,” will washforthe settimewitha delaytime,as
set on the “Wash Delay” switch, between them.
FIG. 19
TYPE OF COOKING RECOMMENDEDWASH
EQUIPMENT TIMES (MINUTES)
LIGHT DUTY ............................................ 3
Ovens, steamers,
andkettles
MEDIUM DUTY ........................................ 5
Braisingpans/Tiltingskillets,
fryers,griddles,groovedgriddles,
openburnerranges,hottopranges,
and conveyor ovens
HEAVY DUTY .......................................... 9
Gas and electric char broilers,
uprightbroilers,woksand
conveyor broilers, Solid fuel broilers

15
MODEL C-5000-TC SERIES TIME CLOCK - INSTRUCTIONS
Programming Start Fan and Start Wash Times
1. Press Prog. key 1234567 will appear in display.
(Pressing Prog. key again, display will show the number
of free programs; Fr 20). Press again to return to 1st
program.
2. PressEkey,¤ONsymbolwillappear. Pressingthekey
againwilltoggletoOFF¡. SelectONforstartfanorOFF
for start wash.
3. Press hto select hour for switching time.
4. Press mto select minute for switching time.
5. If the program is to occur every day of the week, (24 hour
time control) ignore Day key and press Prog. key to
advance to the next program.
6. If 7 day time control is desired, press Day key. 1 2 3 4 5
6 (Mon thru Sat) block of days appears in display.
Pressing Day key again, 1 2 3 4 5 (Mon thru Fri) appears
in display. Pressing Day key again, 6 7 (Sat and Sun)
appears in display. Pressing Day key again, 1 (Mon)
appears in display. Repeated presses will cycle through
all days of the week, and back to 1 thru 7 (Mon thru Sun).
Select day or block of days desired with the Day key.
7. Press Prog. key and repeat steps 2 thru 6 to enter
additional programs of ON (start fan) and/or OFF (start
wash) times.
8. Press ¹key to enter run mode.
IMPORTANT: The output relays will switch ON (or OFF)
only at the programmed times. After programming is
completed, if a channel should be ON, it must be
manually turned ON with the Ekey. For example,
programming is completed at 2PM and CH1 was pro-
grammed to be ON at 8AM and OFF at 5PM. After
pressing the ¹key, CH1 will be OFF; press Eto turn it
ON. It will assume automatic operation at the 5PM OFF
time.
Review and Change of Programs
1. To review a program at any time, press Prog. key.
Programs will be displayed in the sequence they were
entered with repeated presses of Prog. key.
2. To change a program, select the program to be changed
with the Prog. key, and enter the new time of day, and/or
days of week just as in the programming steps shown
above. The old program is overwritten with the new
selections. Press Prog. to store the new program.
3. To delete an individual program, select the program as in
Step 1 and press the mkey and then the hkey until “-:-
”appearsinthedisplay. PresseitherProg.or¹keyuntil
“-:-”flashes. Theprogramisdeletedafterafewseconds.
Manual Override
WhileintheRunmod,(¹symbolisdisplayed),pressingthe
key will reverse the load status (switch load OFF if it is ON,
or switch ON if it is OFF). A hand symbol appears in display
to indicate the override is active. At the next scheduled
switching time, automatic time control will resume, eliminat-
ing the override.
Pressing the Ekey a second time [¤] appears in the
display indicating the load is switched permanently ON.
Pressing the Ekey a third time, [¡] appears in the
displayindicatingtheloadisswitchedpermanentlyOFF.
Pressing the Ekey a fourth time returns to automatic,
¹appears in the display.
General Information
The circular keypads are positioned to provide a sequential
path for programming. Starting with Prog. to select a
program, clockwise to Eto select ON or OFF, then h for
hour, mfor minute, and finally Day to select day or days of
the week. If an input is missing or incomplete, the missing
segmentswillflashwhenthe¹orprogramkeyisdepressed.
(Forexample,ifnoONorOFFisselected,theONsymbolwill
flash). The missing entry must be completed before pro-
grammingcanresume. Whileprogramming,pressingthe h,
m, or Day key longer than 2 seconds will cause a rapid roll
of the parameter.
•A program consists of:
1. ON or OFF command,
2. Hour and minute, and
3. Day or multiple days on which it is to occur.
•Res. is the resetwhichclearsthetime of day anddeletes
all program information.
•The ±1h key sets clock time up or down one hour for
daylight savings time adjustment in the spring and fall.
•Military (24:00 hr.) or AM/PM (12:00 hr.) time may be
selectedbypressingandholdingthehkeywhiledepress-
ing the ±1h key.
Note: A flashing display indicates either incomplete data
entry or the battery is low. Check to see if days and ON or
OFF times are entered and check the power supply to the
time control.
IMPORTANT: Depressresetkeybeforebeginningtoset
time and program
Setting Time and Day of Clock
1. Selectmilitary(24:00hr.)orAM/PM(12:00hr.)timemode
by depressing and holding h key while pressing ±1h key
to toggle between military and AM/PM. (AM appears in
display when in AM/PM mode.)
2. Press and hold down ¹key, and proceed as follows:
A. If setting the time when daylight savings time is in
effect,press±1h keyonce (+1hwillappearin display).
B. Set hour with hkey. Scroll the clock until either AM or
PMappearsasrequired. If AM orPMdoesnot appear
in display, the unit is in military time. GO back to
Number 1 to change AM/PM mode.
C.Set minutes with the mkey.
D.Press Day key repeatedly to the day of the week. (1 is
Monday, 7 is Sunday)
E.Release ¹key, colon will begin flashing. If the days are
flashing,theday oftheweek wasnotentered (seeStepD).
AM - - : - -

FIG. 20A
TYPICAL ARRANGEMENT WITH VACUUM BREAKER/CHECK
VALVE BACKFLOW PREVENTION
FIG. 20B
TYPICAL ARRANGEMENT WITH BUILT-IN “RP” DEVICE
FOR BACKFLOW PREVENTION
16
ENGINEERINGDATA
2 WIRES TO OPTIONAL
FIRE SW.
2 WIRES TO OPTIONAL
FIRE SW.
DRAIN

EachGaylordVentilatorisengineeredtoproperlyventilatethe
specific cooking operation. The exhaust air volume is engi-
neered as a specific volume per lineal ft. of ventilator and is
determinedbythetypeofcookingequipmentbeingventilated.
ThefollowingAirVolumeChartliststhevariousvolumesper
lineal ft. designs.
A ventilator may be designed to operate at two different air
volumes. Forexample,halftheventilatormayoperateat150
CFM/Lin. Ft. by utilizing “Custom Air” Baffles, and the other
half at 250 CFM/Lin. Ft.
Refer to “Measuring Inlet Slot Velocity” on Page 22 for
instructionsonhowtodeterminethedesignedAirVolume/Lin.
Ft.
Thetotalexhaustvolumeforeachventilatorisstampedonthe
ventilatornameplate. (RefertoFigure26onPage24.)
DUCT VELOCITY
Based on 1800 FPM (9.14 M/S)
WATER TEMPERATURE REQUIREMENTS
WATER PRESSURE REQUIREMENTS
WATER CONSUMPTION
Thelength ofthewashcyclemaybesetfor3differenttimes,
3minutesforlight-dutyequipment,5minutesformedium-duty
equipment,and9minutesforheavy-dutyequipment.
ELECTRICALREQUIREMENTS
Standard voltage 120 volt, 60 Hz. Provide 24 hour, 20 amp
service.
Optional voltage 220 volt, 50 Hz. 220 volt. All controls are
markedwiththeiroperatingvoltage.Seepages34through41.
MAKE-UPAIR
Make-upairmustbesuppliedforreplacementofairexhausted
throughallkitchenexhaust systems. Make-up air shouldbe
delivered through registers at ceiling height and distributed
throughoutthekitchen. Ageneral"ruleofthumb"isthat75%
to 80% of the replacement air should be fresh, conditioned
(heatedorcooled)airbroughtintothekitchenarea--withthe
remaining 20% to 25% allowed to flow into the kitchen from
adjacentareas.
NOTE: RECOMMENDEDPERCENTOFMAKE-UPAIRFOR
"MA"SERIESVENTILATORSINCORPORATINGINTEGRAL
MAKE-UP AIR WILL VARY. REFER TO THE GAYLORD
MASTER ENGINEERING DATA SHEET FOR SPECIFIC
REQUIREMENTS.
NOTE: AIRVOLUMEANDSTATICPRESSUREREQUIRE-
MENTS ARE BASED UPON OPERATION AT MEAN SEA
LEVELUNLESSOTHERWISE INDICATED. AIR VOLUME
AND STATIC PRESSURE MUST BE CORRECTED FOR
HIGHALTITUDES.
17
ENGINEERINGDATA
ModelAB,BD, BDLSeries, and C & E up to 300 CFM/FT.only.
Model BDL-DS Series
ModelAB,BD, BDLSeries, and C & E up to 300 CFM/FT.only.
Model BDL-DS Series
(Imperial)
250 Extractor 400 Extractor
& DS Series
CG Series 1.0
GPM/FT 1.60 GPM/FT
RG Series .50
GPM/FT .80 GPM/FT
(Metric)
250 Extractor 400 Extractor
& DS Series
CG Series .208
L/S/METER .331 L/S/METER
RG Series .104
L/S/METER .166 L/S/METER
IMPERIAL METRIC
40 PSI Min. - 80 PSI Max. 2.8 kg/cm - 5.6 kg/cm
IMPERIAL METRIC
140°F Min. - 180°F Max. 60°C Min. - 82°C Max.
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2. If the “Fan On” light on the Command Center is
illuminated, but the exhaust fan is not on, check the
following:
A. Check exhaust fan for loose or broken belts.
B. If“CG” Series ventilator or “RG” Series ventilator with
electricallyoperateddamper, checktheplunger arms
onthedampercontrol switchestoensurethe damper
is open. The plunger arms must all be in the reset
position. If the plunger arms will not reset and lock in
place, remove the lid, and check for mechanical mal-
functionin theinterior.(RefertoFigure21).
C. If“RG”Seriesventilatorwithfuselinkoperateddamper,
checkthefiredamperattheexhaustductcollartomake
sure that the damper is in the open position.
D. Magnetic starter for exhaustfan—It is possiblethat
the overload protectors within the magnetic starter
switchmayhave actuatedandstopped thefan. Push
the “reset” button on the magnetic starter, and then
pushthe“StartFan”buttonontheCommandCenter.
E. Intheevent thatan H.O.A. (HandsOn/Automatic)type
magnetic starter switch is used, check the selector
switch to make sure it is in the automatic position.
F. Check exhaust fan motor circuit breaker and check
fusesindisconnectswitchnormallylocatednexttothe
fan.
18
TROUBLE-SHOOTING
Thefollowingsectionwillenable you tocorrectminoropera-
tionaldifficultiesandkeepyourGaylordVentilatoroperatingat
thehighperformancelevelsforwhichitwasdesigned.
SMOKELOSS
1. IftheGaylordVentilatorisnotexhaustingproperly,check
thefollowing:
A. Air Velocity — Average air velocity through the air
entry slot should be in accordance with the Air
Velocity chart on Page 22. For proper method of
measuring the air velocity, refer to Page 23. If the
velocity is low, check for the following:
(1) Fire damperisopen.
(2) Broken or slipping belt in exhaust fan.
(3) Properrotationofexhaustfanwheel.
(4) Proper sizeof exhaustfan(fanmustdeliver
nameplaterating).
(5) Ductworkinspectionpanelleftopen.
B. The Gaylord Ventilator must have its own exhaust
system and no other exhaust, such as dishwasher
hoods, should be tied into it.
C. ExhaustFanDischarge
(1)Thereshouldbenoscreenoverthedischarge. If
oneisfound,itshould beremoved.
(2) The direction of discharge should not be into the
prevailingwindsnordownwardontotheroof. A
verticaldischargeishighlyrecommended.
D. Make-Up Air — Smoke loss may be experienced if
thereisinadequatemake-upair. Make-upairmustbe
suppliedforreplacementofairexhaustedthroughall
kitchen exhaust systems. Make-up air should be
delivered through registers at ceiling height, and
distributedthroughoutthekitchenarea. Make-upair
registerslocatedneartheventilator,thelouversshould
beadjustedtodirecttheairawayfromtheventilator.
Directing, or forcing make-up air at the ventilator
typicallycreatescrossdraftsresultinginsmokeloss.
A general “rule of thumb” is that 75% to 80% of the
replacementairshouldbefresh,conditioned,(heated
or cooled) air brought into the kitchen area, with the
remaining20%to25%allowedtoflowintothekitchen
fromadjacentareas.
GREASEEXTRACTION
The Gaylord “CG” and “RG” Series Ventilators extract up to
95%ofthegrease,dust,andlintparticlesfromtheairstream
passing through it, when operated and maintained in accor-
dance with design specifications. If it appears that the
ventilator is not extracting properly, typically the exhaust
volume is low. Check the inlet slot velocity as described on
Pages22 through24.
EXHAUSTFANOPERATION
1. Iftheexhaustfandoesnotcomeonwhenthe“StartFan”
buttonispushedorasprogrammed,ifequippedwithatime
clock(“TC”Series),andthe“FanOn”lightdoesnotcome
on, check the following:
A. The main power supply should be checked to make
sure it is turned on and is functioning.
B. Check fuse inside the control cabinet.
FIG. 21
DAMPER CONTROL SWITCH