APW Wyott Champion GGM-18H User manual

R
APW WYOTT Foodservice Equipment Company
P.O. Box 1829
Cheyenne, WY 82003
[phone] Phone [phone] TollFree
[phone] Fax www.apwwyott.com
INSTALLATION
AND
OPERATING
INSTRUCTIONS
P/N 8838800 6-06
IMPORTANT FOR FUTURE REFERENCE
Please complete this information and retain this manual for the life of the equipment. For
WarrantyServiceand/orParts,thisinformationisrequired.
ModelNumber SerialNumber DatePurchased
Gas Griddles
MODELS: GGT-18H, -24H, -36H, -48H
&
MODELS: GGM-18H, -24H, -36H, 48H
WARNING: Improper installation, operation, service or maintenance can cause property
damage, injury or death. Read and understand these instructions thoroughly before
positioning,installing,maintainingorservicingthisequipment.
!!
FOR YOUR SAFETY: Do not store or use gasoline or other flammable vapors and
liquidsinthevicinityofthisoranyotherappliance. !!
1
(US & Canadian units are convertible and are assembled for Natural Gas)
(European units are not convertible and assembled for the appropriate gas)

CAUTION: These models are designed, built, and sold for commercial use. If these
models are positioned so the general public can use the equipment, make sure that
cautions, warnings, and operating instructions are clearly posted near each unit so that
anyone using the equipment will use it correctly and not injure themselves or harm the
equipment.
!
!
WARNING: Install per the spacing requirements listed in the installation section of this
manual.Westronglyrecommendhavingacompetentprofessionalinstalltheequipment.
!
!
!
!WARNING: Improper installation, adjustment, alteration, service or maintenance can
cause property damage, injury or death. Read the installation, operating and
maintenanceinstructionsthoroughlybeforeinstallingorservicingthisequipment.
WARNING: For your safety do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance. Keep the area free and clear of
combustibles.(SeeANZIZ83.14B,1991). !!
!
!NOTICE:Instructionstobefollowedifanyonesmellsgasshouldbepostedinaprominent
place.Thesemaybeobtainedfromthegassupplier.
GAS PRESSURE
The appliance and it’s individual shutoff valve (to be supplied by user) must be disconnected from the gas
supply piping system during any pressure testing of that system at test pressures in excess of ½ psi (3.45
kPa).
Theappliancemustbeisolatedfromthegassupplypipingsystembyclosingit’sindividualmanualshut-off
valve during any pressure testing of the gas supply piping system at test pressures equal to or less than ½
!
!
WARNING:Afactory authorized agent should handle all maintenance and repair. Before
doinganymaintenanceorrepair,contactAPWWyott.
Congratulations on your purchase of APW Wyott commercial cooking or refrigeration equipment. APW
Wyott takes pride in the design and quality of our products. When used as intended and with proper care
and maintenance, you will experience years of reliable operation from this equipment. To ensure best
results,itisimportantthatyoureadandfollowtheinstructionsinthismanualcarefully.
TABLE OF CONTENTS:
ITEM PAGE ITEM PAGE
Safety Precautions 3 Service/Repair 7
Specifications & Dimensions 4 GGT Calibration Procedure/Probe Location 8
General Installation Instructions Troubleshooting
Lighting Instructions 5 Replacement Parts Lists & Exploded Views 12
Operating Instructions 6 Warranty 16
Cleaning/Maintenance 7
LOCATION OF DATA PLATE
The data plate is located on the right side panel.
4 10
2

IMMEDIATELY INSPECT FOR SHIPPING DAMAGE
All containers should be examined for damage before and during unloading. The freight carrier has
assumed responsibility for its safe transit and delivery. If equipment is received damaged, either apparent
orconcealed,aclaimmustbemadewiththedeliveringcarrier.
A) Apparent damage or loss must be noted on the freight bill at the time of delivery. It must then be signed
by the carrier representative (Driver). If this is not done, the carrier may refuse the claim. The carrier can
supplythenecessaryforms.
B) Concealed damage or loss if not apparent until after equipment is uncrated, a request for inspection
must be made to the carrier within 15 days. The carrier should arrange an inspection. Be certain to hold all
contentsandpackagingmaterial.
Installationandstart-upshouldbeperformedbyaqualifiedinstallerwhothoroughlyread,understandsand
followstheseinstruction.
If you have questions concerning the installation, operation, maintenance or service of this product, write
Technical Service DepartmentAPW Wyott Foodservice Equipment Company, P.O. Box 1829, Cheyenne,
WY82003.
SAFETY PRECAUTIONS
!
!WARNING:Thissymbolreferstoapotentialhazardorunsafepractice,whichcouldresult
inseriousinjuryordeath.
!
!DANGER: This symbol warns of imminent hazard which will result in serious injury or
death.
!
!CAUTION:Thissymbolreferstoapotentialhazardorunsafepractice,whichmayresultin
minorormoderateinjuryorproductorpropertydamage.
!
!NOTICE: This symbol refers to information that needs special attention or must be fully
understoodeventhoughnotdangerous.
Before installing and operating this equipment be sure everyone involved in its operation is fully trained
and is aware of all precautions. Accidents & problems can result by a failure to follow fundamental rules
and precautions.
The following words and symbols, found in this manual, alert you to hazards to the operator, service
personnel or the equipment. The words are defined as follows:
!
!NOTICE:Thisproductisintendedforcommercialuseonly.Notforhouseholduse.
!
CAUTION: These models are designed, built, and sold for commercial use. If these
models are positioned so the general public can use the equipment make sure that
cautions, warnings, and operating instructions are clearly posted near each unit so that
anyone using the equipment will use it correctly and not injure themselves or harm the
equipment.
!
WARNING: Improper installation, operation, service or maintenance can cause property
damage, injury or death. Read and understand these instructions thoroughly before
positioning,installing,maintainingorservicingthisequipment.
!!
3

!
!NOTICE: Local codes regarding installation vary greatly from one area to another. The
National Fire Protection Association, Inc., states in its NFPA96 latest edition that local
codes are “Authority Having Jurisdiction” when it comes to requirement for installation of
equipment.Therefore,installationshouldcomplywithalllocalcodes.
4
! !
WARNING: Keep the appliance free & clear of all combustible substances. If gas odor is
detectedatanytime,immediatelyshut unit down at the main shutoff valve.Donotpermit
any open flames in the area of the appliance. Immediately contact an authorized Service
AgencyoryourlocalGasSupplierforservice.
SPECIFICATIONS AND DIMENSIONS
GGT-18 18 (457) 26 (661) 17-3/4(451) 1 37,500/11 37,500/11 6/10(15/25)
GGT-24 24 (610) 26 (661) 17-3/4(451) 2 25,000/7.3 50,000/14.6 6/10(15/25)
GGT-36 36 (915) 26 (661) 17-3/4(451) 3 25,000/7.3 75,000/22 6/10(15/25)
GGT-48 48 (1220) 26 (661) 17-3/4(451) 4 25,000/7.3 100,000/29.3 6/10(15/25)
GGM-18 18 (457) 26 (661) 17-3/4(451) 1 37,500/11 37,500/11 6/10(15/25)
GGM-24 24 (610) 26 (661) 16-3/4(426) 2 25,000/7.3 50,000/14.6 6/10(15/25)
GGM-36 36 (915) 26 (661) 16-3/4(426) 3 25,000/7.3 75,000/22 6/10(15/25)
GGM-48 48 (1220) 26 (661) 16-3/4(426) 4 25,000/7.3 100,000/29.3 6/10(15/25)
MODEL WIDTH
IN. (MM) DEPTH
IN. (MM) HEIGHT
IN. (MM) # OF
BURNERS BTU/kW PER
BURNER TOTAL
BTU/kW HOUR W.C.
IN. (’Mbar’)
Griddle Surface Dimensions
MODEL WIDTH
IN. (MM) DEPTH IN. (MM)
GGT-18 and GGM-18 17 13/16”/452 19 ½”/ 496
GGT-24 and GGM-24 23 13/16”/ 605 19 ½”/ 496
GGT-36 and GGM-36 35 13/16”/ 910 19 ½”/ 496
GGT-48 and GGM-48 47 13/16”/ 1215 19 ½”/ 496
GENERAL INSTALLATION INSTRUCTIONS
Ensuregassupplyandgastype,asshownonunitnameplateagree.
Unit installation must conform with the National Fuel Gas Code, ANSI Z223.1-1996, the National Gas
Installation Code, CAN/CGA-B149.1, or the Propane Installation Code, CAN/CGA-B149.2 as applicable
andinaccordancewithlocalcodes.
Screwlegsintothepermanentlyfastenednutsonthefourcornersoftheunitandtightenbyhand.Levelthe
unit by turning the adjustment screw at the bottom of each leg. Do not slide unit with legs mounted, lift if
necessarytomoveunit.
Pipethreadingcompoundmustberesistanttotheactionofliquefiedpetroleumgases.
WARNING:Donotobstructeithertheairinlet(underneathunit)ortheventilationair(back
ofunit).Provisionsmustbeprovidedtoprovideanadequateairsupplytothegriddle.
!!

Caution: DO NOT use an open flame to check for leaks. Check all gas piping for leaks with a soap and
watersolutionbeforeoperatingunit.
THESEUNITSARESUITABLEFORINSTALLATIONONNON-COMBUSTIBLESURFACESONLY.
Noncombustibleclearances:
0"sides(0mm) 0"rear(0mm) 4”floor(102mm)
Donotobstructtheflowofcombustionandventilationair,undertheunitbythelegsorbehindtheunitbythe
flue.
Adequate clearance for air openings into the combustion chamber is required. Do not place objects
betweenthebottomoftheunitandthecountertop.
There must be adequate clearance for removal of the front panel. All major parts except the burners are
removablethruthefrontifthegaslineisdisconnected.
EuropeanCommunityInstallationInstructions:
“THISAPPLIANCE MUST BE FITTED BYACOMPETENT PERSON. IN THE UK, CORGI REGISTERED
INSTALLERS (INCLUDING THE REGIONS OF BRITISH GAS) UNDERTAKE TO WORK TO SAFE AND
SATISFACTORYSTANDARDS. THISAPPLIANCE MUST BE INSTALLED INACCORDANCE WITH THE
GAS SAFETY (INSTALLATION AND USE) REGULATIONS AND THE RELEVANT BUILDING
REGULATIONS / IEE. REGULATIONS. DETAILED RECOMMENDATIONS ARE CONTAINED IN THE
FOLLOWINGBRITISHSTANDARDCODESOFPRACTICE-BS6172,BS5440PART2,BS6891"
"THISAPPLIANCEMUSTBEINSTALLEDINACCORDANCEWITHTHERULESINFORCE”
"MUSTBEINSTALLEDINAWELLVENTILATEDAREA.Ventilationrequirementsie.B.S.5440."
LIGHTING INSTRUCTIONS
GGTand GGMGriddles are furnished witheither a pilotsafety valve or astanding pilot (notavailablein the
EuropeanCommunity).Pleasefollowtheinstructionsforyourunit.
PilotSafetyValveLightingInstructions
1. Turnonmaingassupplytounit,on-off valvelocatedbehindtheunit(notsuppliedwithunit).
2. Turn theburner control knobs to"OFF" position. Wait atleast5 minutes toallow any gaswhich may
haveaccumulatedinthefireboxcompartmenttoescape.
3. Through the hole in the front panel, press red button on the pilot safety valve and light through
observationholeinfirebox.Keepred buttononpilotsafetydepressedforatleast1minuteafterpilot
haslit.Ifpilotdoesnotlight,repeatthisstep.
StandingPilotLightingInstructions(NotAvailableintheEuropeanCommunity)
Thepilotlightsonthegriddleshavebeensetatthefactory.Ascrewdrivermayberequiredforthefirstlighting
toadjusttheflameforyourelevation.
1. Turnoffthemanualshutoffvalveandwait5minutestoclearthegas.
2. Turnallknobstothe"OFF"position.
3. Turnthemanualshutoffvalveon.
4. Hold an ignition source (match) at the pilot. When the flame is established, remove the ignition
source.
5

6
5. Turntheburnerknobsto"HI".Iftheburnerdoesnotignite,promptlyopenthepilot valvemore.Ifthe
pilot flame appears larger than necessary, turn it down and reset burner ignition. The pilot flame
should be as small as possible but large enough to guarantee reliable ignition of the burners when
theknobsareturnedto"HI".
Lightingmainburner
To light burner, turn knob to “max.” Then back off to the desired flame level. The range of adjustment is
virtuallyinfinitebetweenhighandoff.(Atsmallflame,thereisapresetlow).
Mainburnerairsupply:
1. For efficient burner operation, a proper balance of gas volume and primary air supply must be
maintained which will result in complete combustion. Insufficient air supply results in a yellow
streamingflame. Primaryairsupplyiscontrolledbyanairshutteronthefrontoftheburner.
2. Loosenthescrewsonthefrontoftheburnerandadjusttheairshuttertojusteliminatetheyellowtips
oftheburnerflame. Locktheairshutterinplacebytighteningthescrews.
EuropeanCommunity
If adjustment becomes necessary in the field, it should be done by a factory authorized and trained
technicianwhoshouldseal thescrewaftertheadjustmentto safeguardagainstunauthorizedtamperingby
theenduser.
All burners are lit from constantly burning pilots. Turning the thermostat to the desired temperature is all
thatisrequiredtoputtheunitinservice.
Do not permit fans to blow directly at the unit. Wherever possible, avoid open windows next to the units'
sidesorback. Avoidwalltypefanswhichcreateaircross-currentswithinaroom.
It is also necessary that sufficient air should be allowed to enter the room to compensate for the amount of
airremoved byanyventilatingsystem. Otherwise,asubnormalatmosphericpressurewilloccur,whichwill
effectoperationandcauseundesirableworkingconditions.
Aproperly designed and installed hood will act as the heart of the ventilating system for the room or area in
whichtheunitisinstalledandwillleavetheunitindependentofchangingdraftconditions.
All valves must be checked and lubricated periodically. This must be done by an authorized service
representativeinyourarea.
OPERATING INSTRUCTIONS
SeasonGriddle:
Heat to low temperature (300 - 350 F/150-180C) and pour on a small amount of cooking oil, about one
ounce(30cc)persquarefootofsurface.Spreadtheoilovertheentiregriddlesurfacewithaclothtocreatea
thinfilm.Wipeoffany excess oil with a cloth. Repeat thisprocedure2to3timesuntilthegriddlehasaslick,
mirror-likesurface.
Operation:
Turn the burnersonabout 15-20 minutes beforecooking for preheating. Set theknobsto the desired flame
height or temperature. Each valve will control the gas flow to the burner to bring that area of the plate up to
the set temperature. If different temperature settings are to be used, adjoining areas should be set at
progressively higher temperatures using the lowest temperatures on the outside burners. A uniform and
systematicapproachtotheloadingofthegriddlewillproducethemostconsistentproductresults.

7
CLEANING / MAINTENANCE
InitialCleaning:
Prior to operating your new griddle, thoroughly wash the griddle surface and the exterior with a mild
detergent or soap solution. Do not use abrasive cleaners since this might damage the cabinet finish. If the
stainlesssteelsurfacesbecomediscolored,scrubbyrubbingonlyinthedirectionofthefinishedgrain.
Cleaning:
1. Alwaysturnunitoffandallowittocoolcompletelybeforecleaning.Cleanthoroughlybeforefirstuse.
2. Aftereachuse,cleanthegriddlewithwirebrushorflexiblespatula.
3. Onceaday,thoroughlycleansplashback,sidesandfront.Removethegreasedrawer,emptyitand
washitout.
4. Once a week, clean the griddle surface thoroughly. If necessary, use a griddle stone, wire brush or
steel wool on the surface. Rub with the grain of the metal while the griddle is still warm.Adetergent
maybeusedontheplatesurfacetohelp clean it; but, care must be takentobesurethedetergentis
thoroughlyremoved.Afterremovalofthe detergent,thesurfaceoftheplateshouldthenbe covered
with a thin film of oil to prevent rusting. Clean stainless surfaces with a damp cloth and polish with a
softdrycloth.Toremovediscoloration,useanonabrasivecleaner.Aftereach"weekly"cleaning,the
griddlemustbe seasoned again. Ifthegriddle usage is veryhigh,the "weekly" cleaning procedures
maybedonemoreoftenthanonceaweek.
Extended Shutdown:
Turn the manual shutoff valve to "OFF"; (field installed valve not supplied by the manufacturer); turn all
controlknobstothe"OFF"position;andshutoffthepilotflamebyturningtheadjustmentonthepilotvalve.
Ifthegriddleistobeshutdownforanextendedperiod,putaheavycoatofgreaseoverthegriddleplate.
SERVICE / REPAIR
NOTE:THISAPPLIANCEMUSTONLYBESERVICEDBYANAUTHORIZEDAGENT.
NOTE: Parts protected by the manufacturer or his agent are not to be adjusted by the installer
unlesstheinstallerisanauthorizedserviceagent.
If you have any questions or problems contact your nearest APW/Wyott Service Representative.
!
!CAUTION:Useonly non-abrasivecleaners.Abrasivecleanerscouldscratchthe finishofyour unit,
marringit’sappearanceandmakingitsusceptibletodirtaccumulation.DoNotusesteelwool,other
abrasive cleaners or cleaners/sanitizers containing chlorine, iodine, ammonia or bromine
chemicals as these will deteriorate the stainless steel and glass material and shorten the life of the
unit.
!
!CAUTION: Clean the regulator at least once a month. Make sure the vent opening is open and not
blocked in any way. Failure to do so will cause variations in pressure. Your unit will not function as
wellanditcouldshortenthelifeoftheproduct.

8
CONVERSION GGT
InstructionsareforconversionfromNaturalGastoPropane(L.P.)onallGGTmodels.
Theconversionshouldbedonebeforeconnectingtheunittothegassupply.
1. Removetheknobsandfrontpanel.
2. Removethesupplytubesthatgobetweenthethermostatsandtheorificebracket.
3. Change the orifices to the size recommended for propane (L.P.). For units with a pilot safety valve
youmustalsochangethepilotorificetotheotherpilotorificesupplied.
4. Replacethesupplytubesbetweenthethermostatandtheorificebracket.
5. Replacethefrontpanelandknobs.
6. Before installing the regulator, remove the cap. With the brass portion of the cap up, you can read
(NAT)ontheplasticinsert.Snaptheinsertoutofthecap,flipitoverandsnapbackinplace.Youcan
nowread(L.P.).
7. Continuewiththeinstallation.
CONVERSION GGM
InstructionsareforconversionfromNaturalGastoPropane(L.P.)onallGGMmodels.
Theconversionshouldbedonebeforeconnectingtheunittothegassupply.
1. Removetheknobsandfrontpanel.
2. Removetheorificefittingsfromthevalve.Changetheorificestothesizerecommendedforpropane
(L.P.).Forunitswithapilotsafetyvalveyoumustalsochangethepilotorificetotheotherpilotorifice
supplied.
3. Replacetheorificefittingsintothevalve.
4. Removecap,inverttheinsertandreplacecap.NOTE:Markingsoninsert
5. Continuewiththeinstallation.
GGT CALIBRATION PROBE LOCATION
6.422
10.645
GGT-18
GGT-24
10.645
6.925 10.000
GGT-36
10.645
7.925 10.000 10.000
GGT-48
10.645
7.844 10.000 12.000 10.000

CALIBRATIONPROCEDUREFORGGTGRIDDLES
Locatethereadingpositions
Make sure the griddle surface is clean. Grease or food particles on the griddle will result in inaccurate
thermostatcalibration.
Markthelocationswherethetemperatureprobewillbeplacedfortesting.Seethesketchprovided.Starting
fromtheleft side of thegriddle measure 8” totheright and 10-5/8” fromtherear splash guard.Witha felt tip
penmarkthislocation.Thisisthelocationdirectlyoverthecenteroftheleftthermostatbulb.Fromthispoint
measure right 10” remaining 10-5/8” from the rear splash guard. Mark this location with a felt tip pin. This is
the location over the next thermostat bulb. For a 36” GGT repeat this one more time 10” to the right and for
the48”GGTrepeatthistwicemore10”totherightalwaysremaining10-5/8”fromthesplashguard.Afterall
locations are marked center the temperature probe on each marked location, and then trace a circle
aroundtheprobe.
Thisprocedurewillplacethetemperatureprobeoverthecenterofeachthermostatbulb,andthisistheonly
placetemperaturereadingsshouldbetaken.
Setallthermostatsto350ºFand allow them to cyclethreetofourtimes,orallowthegriddletopreheatfor½
hourbeforeproceeding.Thismakessurethegriddletemperatureshavesaturatedthesurface.
Determinethedifferential
Notethetemperatureforeachsectionofthegriddleastheburnersignite.
Notethetemperatureforeachsectionofthegriddleastheflameextinguishes.
Theflameextinguishtemperatureminustheignitiontemperatureequalsthedifferential.
EXAMPLE: Flameextinguished367ºF
Flameignition341ºF
Difference26ºF=Differential
Ifthetemperaturedifferentialislargethan75ºF,thereisprobablyaproblem with yoursystem.Itmaynotbe
the thermostat. First make sure you thermostat probe is flat against the griddle plate and is making good
contact. Dirt under the probe will cause inaccurate readings. Next make sure the thermostat bulb is held
tightlyinitsholder.Ifyoucanpullthecapillarytubeandthebulbmovesitisnotheldtightenoughagainstthe
griddleplate.This will cause variations in thetemperatureofthegriddlesurface.Ifbothoftheseitemshave
beencheckedandyoustillhaveadifferentialover75ºFthenthethermostatisbadreplaceit.
Determinetheaveragetemperature
Notethetemperatureforeachsectionofthegriddleastheburnersignite.
Notethetemperatureforeachsectionofthegriddleastheflameextinguishes.
The flame extinguish temperature plus the flame ignition temperature divided by two equals the average
temperature.
EXAMPLE: Flameextinguished367ºF
Flameignition341ºF
708º/2
Averagetemperature=354ºF
Iftheaverage temperature iswithin15ºFofthedial marking youprobablyleavethecalibrationwhereit is.If
the average temperature is outside of 15ºF of the dial setting you will want to calibrate the thermostat. To
calibrate a thermostat first remove the knob by pulling it straight off the shaft. Next take a small flat head
screwdriveandturnthescrewinsidetheshaft,clockwisetodecrease,counterclockwisetoincrease.¼turn
clockwise will decrease the temperature approximately 24ºF. ¼ turn counterclockwise will increase the
temperature approximately 24ºF. Adjust and re-measure the average temperature until you get the
temperaturetoyourdesiredpoint.
NOTE: avoid making more than ½ turn at a time. Calibration is not linear and you can get the thermostat
significantlyoutofcalibrationtoapointwhereitisdifficulttoreset.
Ifafteradjustingthethermostatthreetimesandgettingnochangeincalibrationthethermostatisbad.Then
replacethethermostat. 9

10
Heat does not come on Thermostat is bad.
when thermostat is turned on. Pilot burner not lit.
Gas valve is bad.
Pilot burner will not light. Obstructed pilot orifice.
Pilot gas turned off at automatic pilot.
Automatic pilot valve is bad.
Pilot burner will not stay lit. Thermocouple is bad.
Thermocouple is not hot enough.
Obstructed or wrong size pilot orifice.
Gas supply is not purged of air.
Air is blowing pilot light out.
Automatic pilot valve is bad.
Fat appears to smoke excessively. Heat is set too high.
Moisture in the food may be turning into steam.
Food sticks to griddle. Heat is set too high.
Griddle surface needs cleaning and/or seasoning.
Surface under food may not have been covered with
enough cooking oil.
Food burned around edges or Heat is set too high.
contains dark specks. Griddle surface needs cleaning and/or seasoning.
Surface under food may not have been covered with
enough cooking oil.
Food is undercooked inside. Heat is set too high.
Food may not have been cooked for long enough time.
Food tastes greasy or has Food itself may have off flavor.
objectionable off-flavor. Food may have been stored improperly before
cooking.
Too much griddle fat used.
Heat is set too low.
Noticeable build-up of gum Heat is set too high
on griddle. Griddle surface needs cleaning and/or seasoning.
Too much griddle fat used.
TROUBLESHOOTING GUIDE
PROBLEM POSSIBLE CAUSE