Marsal & Sons MB42 Installation instructions

INSTALLATION & OPERATING MANUAL

Marsal&Sons,Inc.DeckOvens:MB42,MB60,MB236,MB260,MB866,SD236,SD248,SD260,SD448,SD660,

SD1048,SD1060,SD866,SD10866,WF42,WF60



FORYOURSAFETY

DONOTSTOREORUSEGASOLINEOROTHERFLAMMABLEVAPORSANDLIQUIDSINTHEVICINITYOF

THISORANYAPPLIANCE.



FORYOURSAFETY

POSTINSTRUCTIONSTOBEFOLLOWEDINTHEEVENTTHEUSERSMELLSGASINAPROMINENT

LOCATION.THISINFORMATIONSHALLBEOBTAINEDBYCONSULTINGYOURLOCALGASSUPPLIER



WARNING

IMPROPERINSTALLATION,ADJUSTMENT,ALTERATION,SERVICEORMAINTENANCECANCAUSE

PROPERTYDAMAGE,INJURY,ORDEATH.READTHEINSTALLATION,OPERATING,AND

MAINTENANCEINSTRUCTIONSBEFOREINSTALLINGORSERVICINGTHISEQUIPMENT.



ELECTRICALGROUNDINGINSTRUCTIONS

THISAPPLIANCE,WHENINSTALLED,MUSTBEELECTRICALLYGROUNDEDINACCORDANCEWITHLOCAL

CODES,ORINTHEABSENCEOFLOCALCODES,WITHTHENATIONALELECTRICALCODE,ANSI/NFPA70,ORTHE

CANADIANELECTRICALCODE,CSAC22.2ASAPPLICABLE.



THISAPPLIANCEISEQUIPPEDWITHATHREEPRONG(GROUNDING)PLUGFORYOURPROTECTIONAGAINST

SHOCKHAZARDANDSHOULDBEPLUGGEDDIRECTLYINTOAPROPERLYGROUNDEDTHREE‐PRONG

RECEPTACLE.DONOTCUTORREMOVETHEGROUNDINGPRONGFROMTHISPLUG.



KEEPTHEOVENAREAFREEANDCLEARFROMCOMBUSTIBLEANDNONCOMBUSTIBLECONSTRUCTION.DO

NOTOBSTRUCTTHEFLOWOFCOMBUSTIONANDVENTILATIONAIR.

THISOVENHASZEROCLEARANCEONBOTHSIDESBUTA3”‐4”SPACEMUSTBELEFT

ATTHEREARTOALLOWADEQUATECLEARANCEFORAIROPENINGSINTOTHE

COMBUSTIONCHAMBERINSURINGPROPERCIRCULATIONOFAIRINTOTHEBURNER

SYSTEM.

ANELECTRICALDIAGRAMISLOCATEDONTHEINSIDEOFTHECONTROLDOORONALLMBSERIESOVENS.



THIS MANUAL MUST BE RETAINED FOR FUTURE REFERENCE

1



INSTALLATION&OPERATINGMANUAL



TABLEOFCONTENTS

I.

INSTALLATIONMANUAL

SERVICEACCESS 2

ELECTRICALCONNECTION 2

GASCONNECTION 2

GASANDELECTRICALSPECIFICATIONS 3

DELIVERY 4

OVENLOCATION 4

ADJUSTMENTSASSOCIATEDWITHINITIALINSTALLATION 4

ASSEMBLYINSTRUCTIONS 5

VENTILATION‐CANOPYMETHOD 6

VENTILATION‐DIRECTCONNECTIONMETHOD 6

VENTILATIONPROBLEMS 8

INSTALLATIONOFBAKINGCHAMBERBRICKS 8

CURINGTHEOVENDECK 13



II.

OPERATINGMANUAL

STARTINGTHEOVEN 14

OVENCONTROL 15

MAINTENANCE 15

CLEANINGTHEOVEN 16

WFOPERATION 17



2



INSTALLATIONMANUAL



Installationmustconformwithlocalcodes,orintheabsenceoflocalcodes,withtheNationalFuelGasCode,

ANSIZ223.1,NaturalGasInstallationCodes,CAN/CGA‐B149.1,orthePropaneInstallationCode,CAN/CGA‐

B149.2,asapplicable.

Theapplianceanditsindividualshutoffvalvemustbedisconnectedfromthegassupplypiping

systemattestpressuresinexcessof½psig(3.45kPa).

Theappliancemustbeisolatedfromthegassupplypipingsystembyclosingitsindividualmanual

shut‐offvalveduringanypressuretestingofthesupplysystemattestpressuresinexcessof½

psig(3.45kPa).

SERVICEACCESS

AllservicecanbedonethroughtheControlDooropeningandtheBurnerDooropening.Anaccesspanelis

locatedontheleftsideoftheovenformoreaccesstothecontrols.Ifthisisblockedoffallservicecanbedone

fromthefrontoftheoven.



ELECTRICALCONNECTION

A15AMPservicemustbeprovidedforMBSeriesandWFSeriesovens.For115Voltusage,acordandplugis

providedbutconnectiontotheelectricalservicemustcomplywithlocalcodes;orintheabsenceoflocal

codes,withtheNationalElectricalCode,ANSI/NFPANo.70(orlatestedition)



GASCONNECTION

A¾”NPTinletislocatedattherearoftheoven.Undersizedgassupplylineswillrestrictgassupplyandaffect

ovenperformance.Ifotherappliancesaresuppliedbythesamesupplylinethesupplylinemustbesizedto

carrythecombinedvolumewithoutcausingmorethan½”pressuredropatthemanifoldofeachapplianceon

thelineatfullrate.Wheninstallingastackedovenwithoneline,thelineshouldbe1”totheteeandthe3/4”

intoeachoven.



NOTE:Duringinstallation,therewillbeairintheline.Theairmustbebledoffbeforeignitioncanbe

established.



GASPIPING



Aproperlysizedgassupplysystemisessentialformaximumovenperformance.Pipingshouldbesizedto

provideasupplyofgassufficienttomeetthemaximumdemandofallappliancesonthelinewithoutlossof

pressureattheequipment.



AdditionalGasConnectionInstructions

3



GASHOSERESTRAINT



Iftheovenismountedoncasters,acommercialflexibleconnectorwithaminimumof3/4”(1.9cm)inside

diametermustbeusedalongwithaquickconnectdevice.



Therestraint,suppliedwiththeFlexibleHoseKit,mustbeusedtolimitthemovementoftheunitsothatno

strainisplacedupontheflexibleconnector.Withtherestraintfullystretchedtheconnectorshouldbeeasyto

installandquickconnect.



Mountthesuppliedbrackettotheangleironweldedacrossthebackofthestand.



TheconnectormustcomplywiththeStandardConnectorsforMovableGasAppliances,ANSIZ21.59or

ConnectorsforMoveableGasAppliancesCAN/CHA‐6.16andaquickdisconnectdevicethatcomplieswiththe

StandardforQuickDisconnectDevicesforUseWithGasFuel,ANSIZ.41orQuickDisconnectForUseWithGas

FuelCAN1‐6.9.Adequatemeansmustbeprovidedtolimitthemovementoftheappliancewithoutdepending

ontheconnectionandthequickdisconnectdeviceoritsassociatedpiping.



GASANDELECTRICALSPECIFICATIONS

Models

InputRateManifoldPressureElectricalRequirements

(MBSeriesandWFSeriesOnly)



NATURAL

GAS



PROPANE

GAS



NATURAL

GAS

PROPANE

GAS

MB42,SD448,

SD1048



95,000



90,000



4.5IN.WC



11IN.WC



Volts120VAC



MB60,SD660,

SD1060



130,000



125,000



4.5IN.WC



11IN.WC



Frequency60Hz

SD236,MB236



50,000



50,000



3.5IN.WC



10IN.WC



0.9AMPSPhase1

SD248



65,000



65,000



4.5IN.WC



11IN.WC



SD260,MB260



80,000



80,000



4.5IN.WC



11IN.WC



MB866,SD866,

SD10866



130,000



125,000



4.5IN.WC



11IN.WC



WF42

135,000 135,000 4.5Main

3.5Side

11Main

10Side

WF60

155,000 155,000 4.5Main

3.5Side

11Main

10Side

WARNING!!Ournaturalgasrunsona½lb.system.Anyhigherpressuremustbereducedto

½lb.priortotheoven.



4



DELIVERY

Marsal&Sons,Inc.cannotassumeresponsibilityforlossordamagesufferedintransit.Thecarrierassumed

fullresponsibilityfordeliveryingoodorderwhentheshipmentwasaccepted.Weare,however,preparedto

assistyouiffilingaclaimisnecessary.

OVENLOCATION

Theovenshouldbeinstalledinalocationinwhichthefacilitiesforventilationpermitsatisfactorycombustion

ofgasandproperventing.Theovenshouldbelocatedsoasnottointerferewithpropercirculationofair

withintheconfinedspace.Inbuildingswherenormalinfiltrationdoesnotprovidethenecessaryair,outside

air“makeup”shouldbeintroduced.



Itisessentialthatanadequateairsupplytotheovenbemaintainedtoprovideasufficientflowofcombustion

andventilationair.



Placetheoveninanareathatisfreeofdrafts.



Donotplacetheovenonacurbbaseorsealtoawall.Thiswillrestricttheflowofairandprevent

properventilation.Pilotoutagesoryellow,floatingflamesonthemainburnersareindicativeofa

lackofsecondaryair.

Beforemakinganyutilityconnectionstothisoven,checktheratingplatetobesuretheovenspecifications

arecompatiblewiththegasandelectricalservicessuppliedfortheoven.Theratingplateislocatedonthe

insidewallofthecontroldoorarea.

ADJUSTMENTSASSOCIATEDWITHINITIALINSTALLATION

Eachoven,anditscomponentparts,havebeenthoroughlytestedandinspectedpriortoshipment.However,

itisoftennecessarytofurthertestoradjusttheovenaspartofanormalandproperinstallation.These

adjustmentsaretheresponsibilityoftheinstaller,ordealer.Sincetheseadjustmentsarenotconsidered

defectsinmaterialorworkmanship,theyarenotcoveredbytheOriginalEquipmentWarranty.Theyinclude,

butarenotlimitedto:



calibrationofthethermostat



adjustmentofthedoors



burneradjustments



leveling



testingofgaspressure



tighteningoffasteners

Noinstallationshouldbeconsideredcompletewithoutproperinspection,andifnecessary,adjustment

byqualifiedinstallationorservicepersonnel.

5



ASSEMBLYINSTRUCTIONS



Forallovenmodels:

Placetheovenbaseinthefinallocation.



Levelthebasefromlefttorightandfronttobackbyadjustingthelegsineachcorner.

Placetheovenbodyontopoftheovenbasemakingsurethatthefrontandthefrontcornersare

evenbetweenthebaseandthebody.**Withstackunits,theoventhatwasshippedwiththebaseis

thebottomoven.

Installthetwo1/4x20x1”boltsthroughthefrontofthebaseintothefrontofthebodyfrom

underneaththebase.Next,alignthebackcornersofthebodyandthebasetogetherandinstallthe

othertwo1/4x20x1”boltsthroughthebackofthebaseandthebackofthebody.

Forstackableunits,placethetopovenonthebottomovenandaligntheirfrontandsides.The

weightoftheunitwillkeepitinplace.

Connectagaslinetothebackofeachovenandfollowalllocalgascodesinconnectingtothegas

supply.

Plugintheelectricplugforthelighttoanelectricpowersupply.

(ForMBOvensOnly)



Onthe

WFOvens

thepowersupplyisfortheelectronicignitionofthesideburner.

Connecttheexhaustsystemtotheflueoftheoven.

NOTE:FOLLOWALLLOCALFIREANDSAFETYCODESFORVENTINGANOVEN.IFTHEOVENIS

BEINGINSTALLEDUNDERACANOPYHOOD,THE6”X14”STAINLESSSTEELFLUEVENTMUST

BEINSTALLED.AHOODISALWAYSRECOMMENDEDEVENWHENDIRECTVENTED.

ThebaseshouldbesealedtothefloorusingaNSFapprovedsealant.

10.

Onthe

WFOvens,

thestainlesssteelshelfisinstalledAFTERthecookingsurfaceisinstalledand

cured.

6



VENTILATION



Localcodesandconditionsvarygreatlyfromoneareatoanotherandmustbecompliedwith.Thefollowing

aretheminimumrequirementsforgoodventilation.Pleaserememberthatthesearegeneral

recommendationsorguidelinesandyoumayhaveaspecialconditionorproblemthatwillrequirethe

servicesofaventilationengineerorspecialist.

PROPERVENTILATIONISTHEOVENOWNER’SRESPONSIBILITY.

Improperventilationwill

inhibitovenperformance,suchasthepilotgoingoutortheburningofthebottomofpies.

Marsal&Sons,Inc.cannotassumeresponsibilityforlossordamagesufferedasaresultofimproper

installation.



WARNING:

Failuretoproperlyventtheovencanbehazardoustothehealthofthe

operatorandmayresultinoperationalproblems,unsatisfactorybakingandpossible

damagetotheequipment.

Damagesustainedasadirectresultofimproperventilationwillnotbecoveredbythe

Manufacturer’swarranty.

CANOPYMETHOD

(Whentheexhaustfromtheovendumpsintothecanopyhood)



Theidealmethodofventingagasovenisthroughtheuseofaproperlydesignedventilationhoodwhich

extends10”‐12”infrontoftheoven.The

SHORTSTAINLESSSTEELFLUE

thatissuppliedwiththeoven

MUSTBEINSTALLED

.Placetheflueoverthecollarthatislocatedonthetopoftheovenandpressdown

untilitisfirmlylockedinplace.Theangleshouldfaceforwardandalwaysawayfromanyfilters.Astrong

exhaustfanwillcreateavacuumintheroom.Foranexhaustsystemtoworkproperly,replacementairmust

beintroducedintotheroom.Inthecaseofafilteredhood,thehoodmustbedesignednottopullexhaustout

oftheoven.

Thehoodshouldbesizedtocompletelycovertheequipmentplusanoverhangofatleast6”(15cm)onall

sidesnotadjacenttoawalland10”‐12”(25.4‐30.4cm)infrontoftheoven.Thedistancefromthefloorto

theloweredgeofthehoodshouldnotexceed7’(2.1m).

THERECOMMENDEDCFMFORTHEHOODISAPPROXIMATELY150CFMPERLINEARFOOT

Thecapacityofthehoodshouldbesizedappropriatelywithprovisionsforanadequatesupplyofmake‐upair.

DIRECTCONNECTIONMETHOD

(Whentheexhaustfromtheovenisdirectlyventedtotheoutside)



Anunrestrictedventpipethatprovidesexitairattheovenofaminimumof55CFMperovenmustbe

providedfortheventpipeatthetopoftheoven.Theventpipeshouldbeaminimumof6”indiameter.

A

DRAFTDIVERTER(ordrafthood)MUSTBEINSTALLEDforadirectventconnectionsysteminorderto

workproperly.Nomorethantwo90°elbowsshouldeverbeusedinadirectventconnectionandall

horizontalrunsmusthaveatleasta1”perfootpitch.

7



DIRECTCONNECTIONMETHOD(continued)

WARNING:

Itisessentialthatthedirectfluebeinstalledasfollows.Incorrect

installationwillresultinunsatisfactorybaking,ovendamage,andpilotoutages.



ThefluemustbeclassBorbetter.Theheightoftheflueshouldrise6‐8ft(2‐2.5m)abovetheroofofthe

buildingoranyproximatestructure.TheflueshouldbecappedwithaULListedtypeventcaptoisolatethe

unitfromexternalenvironmentalconditions.

Thedirectventcannotreplaceairconsumedandventedbytheoven.Provisionsmustbemadetosupplythe

roomwithsufficientmake‐upair.Totalmake‐upairrequirementsforeachovensectionshouldbe

approximately30CFMpersection.Toincreasethesupplyairenteringtheroom,aventilationexpertshould

beconsulted.

INSTALLINGTHEDRAFTDIVERTER



Ovensorderedfordirectventingaresuppliedwithadrafthood.Installthedrafthoodasfollows:



Placethedraftdiverterovertheflueconnector.

Installtherestoftheventingsystemtothedrafthood(draftdiverter).



FAILURETOINSTALLADRAFTDIVERTERWHENUSINGADIRECTCONNECTIONMETHODWILL

CAUSEPILOTOUTAGES,IMPROPERBAKING.SERVICECALLSTHATAREMADEBECAUSETHE

PROBLEMISTHEABSENCEOFANINSTALLEDDRAFTDIVERTERARENOTCOVEREDUNDER

WARRANTYANDALLCOSTSWILLBETHERESPONSIBILITYOFTHEOWNER.

HoodHood

8



VENTINGPROBLEMS



Iftheventingofanydeckoveniseitherrestrictedorforcedinanywaythebakingcharacteristicsoftheoven

willbeadverselyaffected.

Examplesofrestrictedventinginclude:



Useofteesandtoomanyelbows



Longhorizontalrunswithouttheproperpitchof1”perfoot

Insufficientmake‐upaircancauseheatedairandcombustiblestoremainintheovenshorteningthelifeofthe

components.



INSTRUCTIONSFORINSTALLINGCOOKINGSTONES



Thefollowinginstructionsaremodelspecific.



Startbyinstallingthecookingstonesusedforthebakingdeck.Thesecookingstonesare2”thick

andmustbeinstalled

ROUGHSIDEUP

.Pushcookingstonestogethertoeliminateanyspace.

MB42 Placethe(3)12”x36”cookingstonesandthe(1)6”x36”cookingstonesonthesheet

metaloftheovendeck.The6”x36”cookingstonesmustbeplacedontherightside

ofthedeckovenasshownbelow.



MB60

SD660

SD1060

Placethe(5)12”x36”cookingstonesonthesheetmetaloftheovendeckasshown

below.



9



INSTRUCTIONSFORINSTALLINGCOOKINGSTONES

(continued)



MB866

SD866

SD1086

Placethe(5)13”x44”cookingstonesonthesheetmetaloftheovendeckasshown

below.



SD448

SD1048

Placethe(4)12”x36”cookingstonesonthesheetmetaloftheovendeckasshown

below.



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