EngA RUVG SERIES User manual

June 14
INSTALLATION, OPERATION
AND MAINTENANCE MANUAL
FOR
RUVG SERIES
INDOOR INDIRECT GAS FIRED HEATER
UNIT MODEL NO. ___________________
UNIT SERIAL NO. ___________________
SERVICED BY: _____________________
TEL. NO: __________________________
CANADIAN
HEAD OFFICE
AND FACTORY
USA
HEAD OFFICE
AND FACTORY
CANADIAN
EASTERN FACTORY
1401 HASTINGS CRES. SE
CALGARY, ALBERTA
T2G 4C8
Ph: [phone]
Fx: [phone]
Parts Fax: [phone]
32050 W. 83r
d
STREET
DESOTO, KANSAS
66018
Ph: [phone]
Fx: [phone]
1175 TWINNEY DRIVE
NEWMARKET, ONTARIO
L3Y 5V7
Ph: [phone]
Fx: [phone]
Parts Fax: [phone]
SALES OFFICES ACROSS CANADA AND USA
Retain instructions with unit and maintain in a legible condition.
Please give model number and serial number when contacting
factory for information and/or parts.
www.engineeredair.com

ARUVG MANUAL
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TABLE OF CONTENTS
YOUHAVERESPONSIBILITIESTOO...................................................................................................................................4
INTRODUCTION................................................................................................................................................................4
SAFETYPRECAUTIONS......................................................................................................................................................4
WARRANTY.......................................................................................................................................................................6
PARTS................................................................................................................................................................................7
RECEIVING.........................................................................................................................................................................7
TEMPORARYSTORAGE.....................................................................................................................................................7
INSTALLATION...................................................................................................................................................................7
CODES...............................................................................................................................................................................8
MINIMUMCLEARANCETOCOMBUSTIBLESANDFORSERVICEININCHES(mm)..........................................................10
LIFTING............................................................................................................................................................................10
MOUNTING.....................................................................................................................................................................11
SHIPPINGMATERIALS.....................................................................................................................................................11
PIPING,ELECTRICALORCONTROLSERVICECONNECTIONS...........................................................................................11
NATURALGASANDPROPANEINSTALLATION:...............................................................................................................12
GASLINETESTING(EXTERNALTOTHEUNIT).................................................................................................................12
VENTINGPRODUCTSOFCOMBUSTION.........................................................................................................................13
IndoorCategoryIVerticalVenting.................................................................................................................................13
COAXIALVENTING..........................................................................................................................................................
15
IndoorCategoryIIIHorizontalVenting...........................................................................................................................15
SEPARATEDCOMBUSTION.............................................................................................................................................14
COMBUSTIONAIRDUCT.................................................................................................................................................16
FLUEGASVENTING.........................................................................................................................................................16
PIPING,ELECTRICALORCONTROLSERVICECONNECTIONS...........................................................................................19
ELECTRICALINSTALLATION.............................................................................................................................................19
Recommended24VFieldWiringSize:............................................................................................................................20
COILCONNECTIONS........................................................................................................................................................21
DRAINTRAPS..................................................................................................................................................................21
FLUSHINGANDDEGREASINGOFWATERANDGLYCOLCOILS.......................................................................................22
HEATTRANSFERFLUIDS.................................................................................................................................................22
BEFORESTART‐UP..........................................................................................................................................................23
START‐UPCHECKLIST.....................................................................................................................................................23
OPERATION.....................................................................................................................................................................25
SAFETYSHUTOFFVALVELEAKTEST:..............................................................................................................................26
GASMANIFOLD...............................................................................................................................................................26
OPERATIONALCHECKFORGASFIREDRUVGUNITS.......................................................................................................27
COMBUSTIONANDFINALUNITCHECK..........................................................................................................................29
IGNITIONCONTROL........................................................................................................................................................30
UNITSHUT‐DOWNINSTRUCTIONS.................................................................................................................................30
ServiceShutDown.................................................................................................................................................30
EmergencyShutDown...........................................................................................................................................30
Start‐UpAfterExtendedShut‐DownPeriod..........................................................................................................30
MAINTENANCE...............................................................................................................................................................31
ELECTRICAL.....................................................................................................................................................................31
GASMANIFOLD...............................................................................................................................................................32
GASHEATER....................................................................................................................................................................32
VENTTERMINALS............................................................................................................................................................32

ARUVG MANUAL
3 of 35 June 14
FILTERS............................................................................................................................................................................33
CONTROLS......................................................................................................................................................................33
CONTROLENCLOSUREVENTILATION.............................................................................................................................33
OUTDOORAIRINTAKES,MIXINGSECTIONSANDDAMPERS..........................................................................................33
COILS...............................................................................................................................................................................34
START‐UPRECORD..........................................................................................................................................................35
© Airtex Manufacturing Partnership. All rights reserved.

ARUVG MANUAL
4 of 35 June 14
YOUHAVERESPONSIBILITIESTOO

Thisinstallation,operationandmaintenancemanualcannotcovereverypossibility,situationor
eventuality.Regularservice,cleaningandmaintainingtheequipmentisnecessary.Ifyouarenotcapable
ofperformingthesetasks,hireaqualifiedservicespecialist.Failuretoperformthesedutiescancause
propertydamageand/orharmtothebuildingoccupantsandwillvoidthemanufacturers’warranty.
INTRODUCTION

EngineeredAirunitsarehighqualityproductsdesignedandmanufacturedtoprovidemanyyearsof
trouble‐freeoperation.Werecommendthatthismanualbereadthoroughlytoensureproperinstallation,
efficientoperationandpropermaintenanceofthisequipment.Thesubmittalrecordisconsideredtobe
partoftheInstallation,OperationandMaintenanceManual.Pleasereportanyomissionstothenational
servicemanager.
SAFETYPRECAUTIONS
Read,understandandfollowthecompletemanualbeforebeginningtheinstallation,includingallsafety
precautionsandwarnings.

WARNING:

FIREOREXPLOSIONHAZARD

Failuretofollowsafetywarningsexactlycouldresultinseriousinjury,deathorpropertydamage.

Besuretoreadandunderstandtheinstallation,operationandserviceinstructionsinthismanual.

Improperinstallation,adjustment,alteration,serviceormaintenancecancauseseriousinjury,deathor
propertydamage.

—Donotstoreorusegasolineorotherflammablevaporsandliquidsinthevicinityofthisoranyother
appliance.
—WHATTODOIFYOUSMELLGAS
Donottrytolightanyappliance.
Donottouchanyelectricalswitch;donotuseanyphoneinyourbuilding.
Leavethebuildingimmediately.
Immediatelycallyourgassupplierfromaphoneremotefromthebuilding.Followthegas
supplier’sinstructions.
Ifyoucannotreachyourgassupplier,callthefiredepartment.

—Installationandservicemustbeperformedbyaqualifiedinstaller,serviceagencyorthegassupplier.


ARUVG MANUAL
5 of 35 June 14
Warning:

Pool,laundryandcommoncleaningproductsoftencontainfluorineorchlorine
compounds.Whenthesechemicalspassthroughtheheater,theycanformstrongacids.
Theacidcaneatthroughtheheatexchangerwall,causingseriousdamageand
presentingapossiblethreatoffluegasspillageintothebuilding.


Warning:Thisunitisconnectedtohighvoltages.Electricalshockordeathcouldoccurif
instructionsarenotfollowed.Thisequipmentcontainsmovingpartsthatcanstart
unexpectedly.Injuryordeathcouldoccurifinstructionsarenotfollowed.Allwork
shouldbeperformedbyaqualifiedtechnician.Alwaysdisconnectandlockoutpower
beforeservicing.DONOTbypassanyinterlockorsafetyswitchesunderany
circumstances.




ARUVG MANUAL
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WARRANTY

LIMITEDWARRANTYENGINEEREDAIRwillfurnishwithoutcharge,F.O.B.factory,freightcollect,
replacementpartsfor,orrepairstoproductscoveredhereinwhichprovedefectiveinmaterialor
workmanshipundernormalandproperuseforaperiodoftwelve(12)monthsfromtheinitialstart‐upor
eighteen(18)monthsfromthedateofshipment,whicheverexpiressooner,providedthecustomergives
ENGINEEREDAIRwrittennoticeofsuchdefectswithinsuchtimeperiodsandprovidedthatinspectionby
ENGINEEREDAIRestablishesthevalidityoftheclaimandallpertinentinvoiceshavebeenpaidinfull.The
repairsorreplacementswillbemadeonlywhenthecompleteproduct(s)orpart(s)claimedtobedefective
arereturnedtoENGINEEREDAIRoradepotdesignatedbyENGINEEREDAIR,transportationcharges
prepaid.Repairsorreplacementsasprovidedforbythisparagraphshallconstitutefulfillmentofall
ENGINEEREDAIR'sobligationswithrespecttothiswarranty.Therefrigerantchargeisnotincludedinany
partofthiswarranty.Thiswarrantydoesnotapplytoanyproductsorpartsthereofthathavebeensubject
toaccident,misuseorunauthorizedalterations,orwhereENGINEEREDAIR'sinstallationandservice
requirementshavenotbeenmet.

Theforegoingwarrantyisinlieuofallotherwarranties,expressorimplied.ENGINEEREDAIRspecifically
disclaimsanyimpliedwarrantyofmerchantabilityand/orfitnessforpurpose.Undernocircumstances
shallENGINEEREDAIRbeliableto,norberequiredtoindemnify,Buyeroranythirdpartiesforanyclaims,
losses,labour,expensesordamages(includingspecial,indirect,incidental,orconsequentialdamages)of
anykind,resultingfromtheperformance(orlackthereof)ofthisAgreementortheuseof,orinabilityto
usethegoodssoldhereunder,including,butnotlimitedto,damagesfordelay,temporaryheating/cooling
costs,lossofgoodwill,lossofprofitsorlossofuse.Furthermore,thepartiesagreethattheBuyer'ssole
remedyunderthisAgreementshallbelimitedtothelimitedwarrantysetforthintheprecedingparagraph
relatingtotherepairorreplacementofanydefectivegoods.Undernocircumstancesshallanyclaimor
awardagainstENGINEEREDAIRexceedtheoriginalcontractpricewhetherawardedthrougharbitration,
litigationorotherwise.

ENGINEEREDAIRWarrantyisvoidif:

1. Theunitisnotinstalledinaccordancewiththismanual.
2. Thestart‐upandoperationoftheunitisnotperformedinaccordancewiththismanual.
3. Theunitisoperatedinanatmospherecontainingcorrosivesubstances.
4. Theunitisallowedtooperateduringbuildingconstruction.
5. Theunitisallowedtooperateinatmosphereswherechlorineorchlorinecompoundsarepresent
orwhichcontainanycontaminant(silicone,aluminumoxideetc.)thatadherestothesparkignition
flamesensingprobe.

ARUVG MANUAL
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PARTS

Warning:


Anyreplacementpartmustbeofequivalentlistingorcertificationandbefunctionally
equivalent.Thereplacementpartmustmeettheoriginal’sspecificationintermsof
functionalityincludingcertifications,timing,inputandoutputrange,accuracyand
operation.
Failuretoreplacepartsorcomponentswithequivalentpartscancauseproperty
damage,injuryordeath.

1. Motors:
Motormanufacturershaveservicecentersthatwillrepairorreplacemotorsasrequired.

2. PartsOtherThanMotors:
ContactthenearestEngineeredAirsalesofficeorfactory.BesuretoincludeModelNumber,Serial
Number,dateofinstallationandnatureoffailurealongwiththedescriptionofthepartsrequired.
Somepartsmaynotbestockeditemsthatmustbemadeorordered.
RECEIVING

Refertothebackofthepackingslipforreceivingunitinstructions.

Onreceiptoftheunit,checkfordamage.Inspectprotectivecoversforpuncturesorothersignsthatthere
maybeinternaldamage.Removeprotectivecoversandcheckforinternaldamage.Replacecoversifthe
unitisnotbeingassembledorinstalledatthistime.Openaccessdoorsandcheckforinternaldamage.
Closeaccessdoorswhentheinspectioniscomplete.

Allunitsarepre‐testedatthefactoryimmediatelypriortoshippingandareensuredtobeingood
operatingconditionatthattime.Ifdamageisfoundfollowtheinstructionsonthepackingslip.

Onreceiptoftheunit,checkelectricalcharacteristics(seeratingplate)tomakesuretheunitvoltageis
compatiblewiththatavailablefortheunit.Allpartsforfieldinstallationarelistedontheshippingorder
form.
TEMPORARYSTORAGE

Ifaunitistobestoredpriortoinstallationthefollowingprecautionsarerequired:
• Storeinawelldrainedareathatwillnotaccumulatesurfacewater.
• Storeinanareawheretheunitwillnotgetdamaged.
• Allprotectivecoveringsthatwereprovidedforshippingmustbeinplace.
• Protectindoorunitsfromrainandsnow.
INSTALLATION


ARUVG MANUAL
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Warning:
Thisunitisnotratedforhazardouslocationsandcannotbeinstalledinareasrequiring
anyhazardouslocationrating.
 

Caution:
Allwiring,pipingandfuellineinstallationmustbecompletedbyqualifiedpersonsin
accordancewithallfederal,state,provincialand/orlocalcodes.


Note:Installationshallbeinaccordancewiththismanualandallotherassociatedcomponentand
controlInstallation,OperationandMaintenanceManuals.

CODES

InCanada:

1. TheinstallationofthisunitshallbeinaccordancewiththelatesteditionoftheCanadianElectrical
Code,Part1–C.S.A.StandardC22.1,ProvincialandLocalCodes,andinaccordancewiththelocal
authoritieshavingjurisdiction.

2. ThisunitshallbeelectricallygroundedinaccordancewiththelatesteditionoftheCanadian
ElectricalCode,Part1–C.S.A.StandardC22.1,ProvincialandLocalCodes,andinaccordancewith
thelocalauthoritieshavingjurisdiction.

3. TheinstallationofthisunitshallbeinaccordancewiththelatesteditionoftheCanadianNatural
GasandPropaneInstallationCode,C.S.A.StandardB149.1,ProvincialandLocalCodes,andin
accordancewiththelocalauthoritieshavingjurisdiction.

4. InaccordancewithlocalauthoritieshavingjurisdictionorCSA.StandardB149.1areadilyaccessible
approvedmanualshut‐offvalveshallbeinstalledineitherthedroporriserascloseaspossibleto
thevalvetrain(gasmanifold).

5. TheinstallationofthisunitshallbeinaccordancewiththelatesteditionoftheNationalPlumbing
CodeofCanada,ProvincialandLocalCodes,andinaccordancewiththelocalauthoritieshaving
jurisdiction.

6. TheinstallationofthisunitshallbeinaccordancewithallotherNational,ProvincialandLocal
Codes,andinaccordancewiththelocalauthoritieshavingjurisdiction.


ARUVG MANUAL
9 of 35 June 14
InUSA:

1. TheinstallationofthisunitshallbeinaccordancewiththelatesteditionoftheNationalElectrical
Code(ANSI/NFPA70),StateandLocalCodesandinaccordancewiththelocalauthoritieshaving
jurisdiction.

2. ThisunitshallbeelectricallygroundedinaccordancewiththelatesteditionoftheNational
ElectricalCode(ANSI/NFPA70),StateandLocalCodesandinaccordancewiththelocalauthorities
havingjurisdiction.

3. Iftheunithasnotbeenprovidedwithanelectricdisconnectswitch,oneofadequateampacity
shallbeinstalledinaccordancewithArticle430oftheNationalElectricalCode(ANSI/NFPA70).

4. TheinstallationofthisunitshallbeinaccordancewiththelatesteditionoftheNationalFuelGas
CodeANSI/Z223.1/NFPA54,StateandLocalCodesandinaccordancewiththelocalauthorities
havingjurisdiction.

5. InaccordancewithlocalauthoritieshavingjurisdictionorNFPA54anaccessibleapprovedmanual
shutoffvalveshallbeinstalledwithin6ft(1.8m)ofthevalvetrain(gasmanifold).

6. TheinstallationofthisunitshallbeinaccordancewiththelatesteditionoftheNationalStandard
PlumbingCode(NSPC),StateandLocalCodesandinaccordancewiththelocalauthoritieshaving
jurisdiction.

7. TheinstallationofthisunitshallbeinaccordancewithallotherNational,StateandLocalCodes,
andinaccordancewiththelocalauthoritieshavingjurisdiction.

ARUVG MANUAL
10 of 35 June 14
MINIMUMCLEARANCETOCOMBUSTIBLESANDFORSERVICEININCHES(mm)

MODEL
COMBUSTIBLECLEARANCESERVICECLEARANCE
TOPFRONTBACKSIDEBOTTOMFLUEOPPOSITE
BURNERSIDE
SERVICE/
BURNER
SIDE
CONTROL
PANEL†
RUVGINDIRECTFIRED
GASHEAT
CategoryI
000009"
(229)NA24" (610)42"(1067)
RUVGINDIRECTFIRED
GASHEAT
Co‐axialCategoryIII
000000NA24" (610)42"(1067)
RUVGINDIRECTFIRED
GASHEAT
ParallelCategoryIII
000006"
(152)NA24" (610)42"(1067)
FLUIDCOILS&
RECOVERYDEVICES00000NANAUNITWIDTH42"(1067)
ELECTRICHEAT00000NANAUNITWIDTH
+10"(254)42"(1067)

†‐AsrequiredbytheCanadianElectricalCodeortheNationalElectricalCode.
ForSafetyandService,theminimumclearancesmustbeobserved.Minimumclearancesalsoprovide
adequatecombustionairsupply.

LIFTING

EngineeredAirunitsareconstructedonastructuralsteelbaseframe.Theunitbaseframeisequipped
withliftinglugsspecificallylocatedtofacilitateproperliftingoftheunit.Spreaderbarsmustbeusedto
keepriggingawayfromtheunitcabinetry.Allliftinglugsmustbeused.Ifusingalifttruck,ONLYliftusing
theperimeterstructuralframe.DONOTallowforkstoliftoncabinetorunitfloor.
Note:Theremaybebottommountedcomponents,suchasdrainpiping,thatcanbeeasilydamaged.

Warning:Injuryordeathcanresultfromimproperriggingandlifting.Riggingandliftingof
equipmentmustbeperformedbyqualifiedpersonnelwithproperequipmentusing
appropriateandapprovedsafetyprecautions.



ARUVG MANUAL
11 of 35 June 14
MOUNTING

Unitsmustbemountedlevel.Failuretodosocancausewatertobetrappedindrainpansoroperational
problemsthatcanvoidwarranty.Failuretodosocanresultininjuryordeath,damagetheequipment
and/orbuildingandcanbeacauseofpoorindoorairquality.

Equipmentmustbeinstalledsothatsufficientworkingclearanceandcomponentaccessisprovided.
Someunitsaredesignedforcantileveredinstallation.ConsulttheSubmittalRecordforspecificunit
mounting.
SHIPPINGMATERIALS

Removeshippingmaterials.Shippingmaterialsmayinclude,butarenotlimitedto:
• Protectivecoversoveropenings,inlets,condensercoilsetc.
• Protectivecoversoversplitsectionsifprovided.
• Tie‐downbolts,strapsandblocksonfanandcompressorvibrationisolators.
• Tie‐downbolts,strapsandblocksontiltequippedheatpipesandenthalpy/desiccantwheelsif
supplied.
• Indirectfiredheatexchangersmaybesupportedwithwoodforshipping.Remove.

PIPING,ELECTRICALORCONTROLSERVICECONNECTIONS

DONOTinstallanythingthatwillinterferewithequipmentaccessortheratingplate.

EngineeredAirequipmentisconstructedwithcabinetandfloorsdesignedtopreventwaterfromentering
thebuildingthroughtheinstalledunit.Whenordered,factoryinstalledpipechasesand/orelectrical
chasesarebuiltintotheunitfloor.Factorychasesareprovidedwithcoversthatneedtobereplacedand
sealedafterpipingandelectricalconnectionsaremade.

THEFLOOROFTHEUNITHASBEENMADEWATER‐RESISTANT.DONOTCUTORDRILLHOLESINTHE
FLOORORUSEPENETRATINGFASTENERS.

Allpenetrationsthroughtheunitwallsmustbecaulkedandsealedtopreventairand/orwaterfrom
enteringtheunit.

ARUVG MANUAL
12 of 35 June 14
NATURALGASANDPROPANEINSTALLATION:

1. Installationmustbemadeinaccordancewiththerequirementsoftheauthoritieshavingjurisdiction.

2. Checktheunitratingplateandconfirmfueltype,supplypressure,inputratingandtemperaturerise.

3. Refertotheheaterratingplatefordeterminingtheminimumgassupplypressureforobtainingthe
maximumgascapacityforwhichthisheaterisspecified.

4. Gassupplypressurehigherthantheunitratingplaterequiresanadditionalfieldsuppliedgas
regulator.

5. Installanapprovedapplianceshutoffvalveonthegassupplyinaccordancewiththerequirementsof
theauthoritieshavingjurisdiction.

6. Gaslinesshallnotinterferewithunitaccess.Thegaslineconnectionattheheatershallhavean
approveddriplegwithscrewedcap.

7. Aminimum1/8inchNPTpluggedtapping,accessiblefortestgaugeconnection,mustbeinstalled
immediatelyupstreamofthegassupplyconnectiontotheunit.

8. Onindoorunitsanycontroldevice(regulator,diaphragmvalve,highandlowpressureswitch,etc.)
thatrequiresableedorventline,mustbeventedinaccordancewithapplicablecodes.
GASLINETESTING(EXTERNALTOTHEUNIT)

Theapplianceanditsindividualshutoffvalvemustbedisconnectedfromthegassupplypipingsystem
duringanytestingofthatsystemattestpressuresinexcessof0.5psi(3.5kPa).

Theappliancemustbeisolatedfromthegassupplysystembyclosingitsindividualshutoffvalveduring
anytestingofthatsystemattestpressureequaltoorlessthan0.5psi(3.5kPa).

ARUVG MANUAL
13 of 35 June 14
VENTINGPRODUCTSOFCOMBUSTION

Installationshallbeinaccordancewiththerequirementsofauthoritieshavingjurisdictionand
ANSIZ2231/NFPA54orCSAB149.1.Heatersmustbeprovidedwithsufficientcombustionairandshall
notbelocatedinanareawhereanegativepressurewillbecreatedthatwillstarvetheburnerof
combustionair.Flueoutletpressuremustnotexceedmaximumoverfirepressureshownonthe
nameplate.

Donotconnecttheventtoanyportionofmechanicaldraftsystemsthatareunderpositivepressure.Do
notinstalldampersorotherrestrictivedevicesintheflueventpipe.Ventterminationsshallbein
accordancewiththerequirementsoftheauthoritieshavingjurisdiction.

Theventshallbeinstalledinsuchamannerthataccesstotheapplianceorunitratingplateisnot
obstructed.

IndoorCategoryIVerticalVenting

Ventsystemsmustbesizedandinstalledinaccordance
withANSIZ2231/NFPA54orCSAB149.1.Properventingof
theheatingunitsistheresponsibilityoftheinstaller.

Usesinglewallordoublewall“B”vent.
Maximizetheheightoftheverticalrunofvent
pipe.Aminimumoffive(5)feet(1.5m)ofvertical
pipeisrequired.
Anapprovedweatherproofventcapshallbe
installed.
CODE / AUTHORITY
INSTALLATION
RUVG
VENT CONNECTOR
COMBUSTABLE
CHIMNEY TYPE "B" OR EQUIVALENT
AS REQUIRED BY

ARUVG MANUAL
14 of 35 June 14
SEPARATEDCOMBUSTION

Warning:
 Separatedcombustionequipmentisnotdesignedorapprovedforusein
atmospherescontainingflammableorchlorinevapors.

Warning:

Theinstallationofseparatedcombustionsystemsmustbecompletedby
qualifiedpersonsinaccordancewithallfederal,state,provincialand/orlocal
codes.

Warning:
 Donotoperatethisheaterwithoutallcombustionairandfluegaspiping
installed.

Theheatershallnotbeconnectedtoaventingsystemservinganyothergas,liquidorsolidfuelfired
appliance.Installationshallbeinaccordancewiththerequirementsofauthoritieshavingjurisdictionand
ANSIZ2231/NFPA54orCSAB149.1.Theventshallbeinstalledinsuchamannerthataccesstothe
applianceorunitratingplateisnotobstructed.

Ifassidewallterminationisused,locatetheterminationasshownbelow.




ARUVG MANUAL
15 of 35 June 14
COAXIALVENTING‐COMBUSTION
IndoorCategoryIIIHorizontalVenting

PressuresinCategoryIIIventingsystemsarepositive
andthereforecaremustbetakentoavoidflue
productsenteringanyoccupiedspace.Useonlyvent
materialsandcomponentsprovided.
Theventingandcombustionairareintegratedasaco‐
axialsystemwiththeventpipeatthecenterand
combustionairsurroundingtheventpipe.
Thetotallengthofventpipemustnotexceed4ft.
(1220mm).Noelbowsshallbeused.
UsethecombinationVentCap/CombustionAirintakeprovided.Mountlevel.
Theventterminalmustbelocatedatleast1ft.(305mm)abovegrade,orinsnowareas,atleast3
ft.(1m)abovesnowlinetopreventblockage.Theventterminalmustbeinstalledwithaminimum
horizontalclearanceof4ft.(1.2m)fromelectricmeters,gasmeters,regulatorsorreliefequipment
(seefollowingdrawing).
PARALLELVENTING‐COMBUSTION

Thefollowingtableindicatesthemaximumequivalentlengthofthevarioussizesofventandcombustion
airforeachfurnacemodel.Equivalentlengthequalsthetotallengthofstraightpipe,plus10ft(3m)for
each90°elbowand5ft(1.5m)foreach45°elbow.

MaximumEquivalentFeet
VentDiameterCombustionAirDiameter
Btuh3”4”4”5”
50,000100‐100‐
60,000100‐100‐
70,000100‐100‐
80,000‐ 100‐100
90,000‐ 100‐100
100,000‐ 100‐100
120,000‐ 100‐100
140,000‐ 100‐100
160,000‐ 100‐100


Thismanualdescribestwooptionsforseparatedcombustionsystems:
RUVG
1220mm
M
A
X
4FEET
ATTACH SECURELY TO
WALL WITH SUITABLE
FASTENERS

ARUVG MANUAL
16 of 35 June 14
SideWallVent
VerticalVent

COMBUSTIONAIRDUCT
EachseparatedcombustionXEheatershallbeequippedwithitsowncombustionairsupply.It
mustnotconnecttoanyotherairintakesystems.
Usesinglewallpipeconstructedofminimum24gagalvanizedsteeloramaterialorequaldurability
andcorrosionresistance.
Singlewallcombustionairductmaybeexternallyinsulated,asrequired.
Eachslipjointshallbesecuredwithcorrosionresistantscrewsorrivets,andsealedwithan
adhesivesiliconsealantand/oraluminumtape.
Forhorizontalcombustionairsystemslongerthan5ft(1.5m)thepipingmustbesupportedevery3
ft(1m).

VENTING
Eachheatermusthaveitsownventsystem,andmustnotbeconnectedtootherventingsystems
orchimney.
Use‘C’Vent.Alljointsmustbesecuredwithcorrosionresistantscrewsorrivet,andsealedwith
sealantand/oraluminumtaperatedto500°F(290°C).

Warning:
 DonotusePVC,ABSoranyothernon‐metallicpipeforventing.

Anyrunofsinglewallventpipepassingthroughanunheatedspaceshouldbeinsulatedwith
insulationratedforatleast550°F(280°C)topreventcondensing.Incaseswherecondensingis
expected,installaTeeatthebottomoftheverticalsection,withadrainforcondensate.
Horizontallengthsoftheventsystemmustbeinstalledandsloped(2%)topreventthe
accumulationofcondensate.
Maintainaminimumof6”(150mm)clearancefromanycombustiblematerial.
Donotinstalldampersorotherrestrictivedevicesintheflueventpipe.



ARUVG MANUAL
17 of 35 June 14


SideWallVent
OnlyEngineeredAirsuppliedconcentricventterminationsareapprovedforusewithRUVGfurnace
models.
Refertothesketchbelow.
RUVG
TeewithDrain
Combustionair
Ventpipe
Vent
Termination
Slope
VentConnection
CombustionAir
Connection
Outlet
VentAdapter

ARUVG MANUAL
18 of 35 June 14
VerticalVent
Anapprovedventcap(eg.Breidert),furnishedbythecustomer,mustbeinstalledattheterminationpoint
oftheverticalventsystem.Theventinthisarrangementiscategory1.‘B’Ventisacceptable.Installer
maysealjointsasrequired.
Refertothesketchbelow.
RUVGTeewithDrain
Ventpipe
Combustionair
‘B’Vent
‘C’Vent
CombustionAir
InletHood
VentTermination
VentAdapter

ARUVG MANUAL
19 of 35 June 14
PIPING,ELECTRICALORCONTROLSERVICECONNECTIONS

DONOTinstallanythingthatwillinterferewithequipmentaccessortheratingplate.

EngineeredAirequipmentisconstructedwithcabinetandfloorsdesignedtopreventwaterfromentering
thebuildingthroughtheinstalledunit.Whenordered,factoryinstalledpipechasesand/orelectrical
chasesarebuiltintotheunitfloor.Factorychasesareprovidedwithcoversthatneedtobereplacedand
sealedafterpipingandelectricalconnectionsaremade.

THEFLOOROFTHEUNITHASBEENMADEWATER‐RESISTANT.DONOTCUTORDRILLHOLESINTHE
FLOORORUSEPENETRATINGFASTENERS.

Allpenetrationsthroughtheunitwallsmustbecaulkedandsealedtopreventairand/orwaterfrom
enteringtheunit.
ELECTRICALINSTALLATION

DONOTinstallanythingthatwillinterferewithequipmentaccessortheratingplate.

TheunitmustbeelectricallygroundedandallwiringmustbeinstalledinaccordancewiththeNational
ElectricalCode,ANSI/NFPA70,and/ortheCanadianElectricCodeCSA22‐1andtotheapprovalofthe
authoritieshavingjurisdiction.THEFLOOROFTHEUNITHASBEENMADEWATER‐RESISTANT.DONOT
CUTORDRILLHOLESINTHEFLOORORUSEPENETRATINGFASTENERS.Fieldwiringdiagrams,internal
wiringdiagramsandoperatingfunctionsareincludedinthecontrolcabinet.Thepowerrequirementsare
indicatedontheratingplate.Wherefieldwiringofcontrolcircuitsisrequired,takecaretosizethefield
wiringforamaximum10%voltagedrop.Thecontrolcircuitampacityisnotedonthefieldwiringdiagram.
Seethefieldwiringdiagramforrequirementsforshieldedortwistedpairwireforsolidstatedevices.

Caution:TemporaryPowerGeneration

Thewarrantywillbevoidifthevoltagebeingfedfromanytemporarygeneratorisnot
within10%ofthenominalratednameplatevoltageandvoltageimbalanceshallbe
limitedto2%.Apowermonitorshallbeinstalledbyotherstoproperlymonitorpower
qualityandconditions.

Allgeneratorsetsshallbeprovidedwithovercurrentandearth‐faultprotection.The
protectiveapparatusshouldbecapableofinterrupting,withoutdamage,anyshort‐
circuitcurrentthatmayoccur.


Warning:
Nounspecifiedexternalloadshallbeaddedtothecontroltransformercircuit(s)orto
themainpowercircuit(s).


ARUVG MANUAL
20 of 35 June 14
Recommended24VFieldWiringSize:
Copperconductorsonly
Circuit
Load
(Amps
)(1)
MaximumTotalLengthofRun
<50Ft<100Ft<150Ft<200Ft <250Ft <300Ft <350Ft <400Ft<450Ft <500Ft
(~15m)(~30m)(~45m)(~60m) (~75m) (~90m)
(~105
m)
(~120
m)
(~135
m)
(~150
m)
116AWG16AWG16AWG16AWG 16AWG 16AWG 14AWG 14AWG14AWG 12AWG
216AWG16AWG16AWG14AWG 12AWG 12AWG 12AWG 10AWG10AWG 10AWG
316AWG16AWG14AWG12AWG 12AWG 10AWG 10AWG 10AWG  
416AWG14AWG12AWG10AWG 10AWG 10AWG    
516AWG12AWG12AWG10AWG      
616AWG12AWG10AWG10AWG      
714AWG12AWG10AWG       
814AWG10AWG10AWG       
914AWG10AWG        
1012AWG10AWG        
1112AWG10AWG        
1212AWG10AWG        
1312AWG         
1412AWG         
1512AWG         

Notes:
1) Thefieldwiringloaddependsontheactualloadonaparticularcontrolcircuitthefieldwiringis
connectedto.Refertotheinternalwiringdiagramoftheunit.
2) Thetableaboveisbasedonamaximum10%voltagedropona24Vcontrolcircuit.Wiresizewas
calculatedusingthefollowingformula:

CM=(25xIxL)/V

WhereCMiscircularmilsofconductorforaconstantloadofIamps,wirelengthLinfeetfromthe
unittothefielddeviceandback,andvoltagedropV.

Whenconnectingtoathreephasepowersupply,checkforthecorrectrotationofallmotorsandfans.If
therotationisincorrect,reversetherotationattheincomingpoweronly.Allelectricalconduitoutletsin
thecontrolpanelmustbesealedtopreventmoistbuildingairfrommigratingtothecontrolpanel.

Allpenetrationsthroughtheunitwallsmustbecaulkedandsealedtopreventairand/orwaterfrom
enteringtheunit.
