HeatStar ERXL175N Owner's manual

Category
Space heaters
Type
Owner's manual

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— WHATTODOIFYOUSMELLGAS
 • OpenWindows
 • DO NOTtrytolightanyappliance.
 • DO NOTuseelectricalswitches.
 • DO NOTuseanytelephoneinyourhouse.Immediatelycallyourlocalgassupplierfromaneighbor’stelephone.
 Followthegassupplier’sinstructions.
 • Do nottouchanyelectricalswitch;donotuseanyphoneinyourbuilding.
 • Installationandservicemustbeperformedbyaqualifiedinstaller,serviceagencyorthegassupplier.
 • Ifyoucannotreachyourgassupplier,calltheFireDepartment.
FOR YOUR SAFETY:
Donotstoreorusegasolineorotherflammablevaporsandliquidsinthevicinityofthisoranyotherappliance.
WARNING: Iftheinformationintheseinstructionsarenotfollowedexactly,afireorexplosionmayresultcausing
propertydamage,personalinjuryorlossoflife.
18677XL2017CB
ENERCOGroup,Inc.,4560W.160THST.,CLEVELAND,OHIO44135•866-447-2194
WARNING: Improper installation, adjustment, alteration, service or maintenance can cause
property damage, injury, or death. Read the installation, operating and maintenance instructions
thoroughly before installing or servicing this equipment.
OPERATING INSTRUCTIONS
AND OWNER’S MANUAL
READ INSTRUCTIONS CAREFULLY: Read and follow all instructions.
Place instructions in a safe place for future reference. Do not allow anyone who
has not read these instructions to assemble, light, adjust or operate the heater.
Model#
XL
ER
LANGUAGES INCLUDED
•ENGLISH
•FRENCH
•SPANISH
Heatstar ERXL
Gas-Fired Low-Intensity Infrared Heaters Approved For
Residential Garage/Commercial Applications
ERXL-40ERXL-60
ERXL-80ERXL-100
ERXL-125ERXL-150
ERXL-175
2
Enerco | Heatstar ERXL Series Heater Operating Instructions and Owner’s Manual
SECTION 1:Introduction
HeatstarERXLmodelsarelow-cost,fieldassembledinfrared
heatersthatareeasytoinstallandrequireonlyminimal
maintenance.Theyaredesignedtoprovideyearsofeconomical
operationandtrouble-freeservice.
Checking Shipment
ChecktheshipmentagainsttheBillofLadingforshortages.
Also,checkforexternaldamagetocartons.Noteany
shortages,and/orexternaldamagetocartonsontheBillof
Ladinginthepresenceofthedeliverytrucker.Thedelivery
truckershouldacknowledgeanyshortagesordamageby
initializingthis“noted”BillofLading.Immediatelyreport
anyclaimsfordamagedmaterial,orshortagesthatwerenot
evidentatthetimeofshipment,tothecarrierandyourEnerco
Group,IncFactoryRepresentative.
Installer Responsibility
Allheatersandassociatedgaspipingshouldbeinstalledin
accordancewithapplicablespecificationsandthisinstallation
madeonlybyfirms(orindividuals)wellqualifiedinthistypeof
work.Consultlocalbuildinginspectors,FireMarshalsoryour
localEnercoGroup,IncFactoryRepresentativeforguidance.
HeatstarERXLheatersareinstalledonthebasisofinformation
giveninalayoutdrawing,whichtogetherwiththecitedcodes
andregulations,comprisethebasicinformationneededto
completetheinstallation.Theinstallermustfurnishallneeded
materialthatisnotfurnishedasstandardequipment,andit
ishisresponsibilitytoseethatsuchmaterials,aswellasthe
installationmethodsheusesresultinajobthatisworkmanlike
andincompliancewithallapplicablecodes.
EnercoGroup,IncFactoryRepresentativeshavehadtraining
andexperienceintheapplicationofthisequipmentandcan
becalledonforsuggestionsaboutinstallationwhichcansave
materialandmoney.
WARNING:
FIRE,BURN,INHALATION,ANDEXPLOSIONHAZARD.KEEP
SOLIDCOMBUSTIBLES,SUCHASBUILDINGMATERIALS,
PAPERORCARDBOARD,ASAFEDISTANCEAWAYFROM
THEHEATERASRECOMMENDEDBYTHEINSTRUCTIONS
NEVERUSETHEHEATERINSPACESWHICHDOORMAY
CONTAIN VOLATILE OR AIRBORNE COMBUSTIBLES,
ORPRODUCTSSUCHASGASOLINE,SOLVENTS,PAINT
THINNER,DUSTPARTICLESORUNKNOWNCHEMICALS.
GENERAL HAZARD WARNING:
FAILURE TO COMPLY WITH THE PRECAUTIONS AND
INSTRUCTIONS PROVIDED WITH THIS HEATER, CAN
RESULT IN DEATH, SERIOUS BODILY INJURY AND
PROPERTY LOSS OR DAMAGE FROM HAZARDS OF
FIRE, EXPLOSION, BURN, ASPHYXIATION, CARBON
MONOXIDEPOISONING,AND/ORELECTRICALSHOCK.
ONLYPERSONSWHOCANUNDERSTANDANDFOLLOW
THEINSTRUCTIONSSHOULDUSEORSERVICETHIS
HEATER.
IFYOUNEEDASSISTANCEORHEATERINFORMATION
SUCHASANINSTRUCTIONSMANUAL,LABELS,ETC.
CONTACTTHEMANUFACTURER.
WARNING:
YOURSAFETYISIMPORTANTTOYOUANDTOOTHERS,
SOPLEASEREADTHESEINSTRUCTIONSBEFOREYOU
OPERATETHISHEATER.
CONTENTS
Section1INTRODUCTION.........................................................2
Section2PLANNING.................................................................3
Section3INSTALLATION&ASSEMBLY.......................................6
Section4EngineeringSpecifications.......................................13
Section5VENTING/DUCTING…………………………………………14
Section6GASPIPING..............................................................17
Section7WIRING....................................................................18
Section8OPERATIONMAINTENANCE.....................................19
Section8TROUBLESHOOTING.................................................21
Section9REPLACEMENTPARTS..............................................22
WARRANTYINFORMATION.....................................................28
WARNING:
The State of California requires the following warning:
COMBUSTIONBY-PRODUCTSPRODUCEDWHENUSING
THISPRODUCTCONTAINCARBONMONOXIDE,A
CHEMICALKNOWNTOTHESTATEOFCALIFORNIA
TOCAUSECANCERANDBIRTHDEFECTS(OROTHER
REPRODUCTIVEHARM).
3Operating Instructions and Owner’s ManualEnerco | Heatstar ERXL Series Heater
SECTION 2: Planning
Thefollowingcodesandinstructionsshouldbefollowed
whenplanningtheinstallationoftheHeatstarERXLheater.In
additiontotheseinstructions,thewarningsin(Section1)must
becarefullyadheredtosinceimproperinstallationmayleadto
propertydamage,injury,ordeath.
National Standards and Applicable
Codes
Gas Codes:
Thetypeofgasappearingonthenameplatemustbe
thetypeofgasused.Installationmustcomplywithlocal
codesandrecommendationsofthelocalgascompany,
andtheNationalFuelGasCode,ANSIZ223.1–latest
revision,(sameasNFPABulletin54)ortheNaturalGas
andPropaneInstallationCode,CSAB149.1.
•Clearancebetweentheheateranditsventandadjacent
combustiblematerial(whichispartofthebuilding
oritscontents)shallbemaintainedtoconformwith
theStandardforInstallationofGasAppliancesand
GasPiping,NFPA-54/ANSIZ223.1–latestrevision,
NationalFuelGasCodeortheNaturalGasandPropane
InstallationCode,CSAB149.1.
Aircraft Hangers:
Installationinaircrafthangersmustbeinaccordance
withtheStandardforAircraftHangers,ANSI/NFPA-409
–latestrevision.
• Heatersinaircraftstorageorserviceareasshallbe
installedataheightof10feetabovetheuppersurface
ofwingsorengineenclosuresofthehighestaircraft
whichmaybehousedinthehanger.(Thisshouldbe
measuredfromthebottomoftheheatertothewingor
engineenclosure,whicheverishighestfromthefloor.)
• Inothersectionsofaircrafthangers,suchasshopsor
offices,heatersmustnotbeinstalledlessthan8feet
abovethefloor.
• Heatersinstalledinaircrafthangersshallbelocated
soasnottobesubjecttodamagebyaircraft,cranes,
moveablescaffoldingorotherobjects.
Public Garages:
Installationsingaragesmustbemadeinaccordance
withtheStandardforParkingStructures,NFPA-88A–
latestrevisionortheStandardforRepairGarages,NFPA-
88B–latestrevision.
• Heatersmustnotbeinstalledlessthan8feetabove
thefloor.Minimumclearancestocombustiblesmustbe
maintainedfromvehiclesparkedbelowtheheater.
• Wheninstalledoverhoists,minimumclearancesto
combustiblesmustbemaintainedfromtheuppermost
pointonthehoist.
Venting:
TheventingmustbeinstalledinaccordancewithNFPA-
54/ANSIZ223.1orCSA149.1–latestrevision,National
FuelGasCode.Partialinformationwithregardtothis
codeisprovidedin(Section5)ofthisinstallationmanual
withregardtosizeandconfigurationsforventing
arrangements.
• Anyportionoffluepipepassingthroughacombustible
wallmustbedualinsulatedorhaveanapprovedthimble.
RefertoANSI-Z223.1orCSA149.1–latestrevision.
Hazardous Locations:
Wherethereisthepossibilityofexposuretocombustible
airbornematerialorvapor,consultthelocalFireMarshal,
thefireinsurancecarrierorotherauthoritiesforapproval
oftheproposedinstallation.
Critical Considerations
HeatstarERXLisasuspendedheater.Therefore,its
stability,flexibility,andsafetyareveryimportant.Before
startinginstallation,besurethesystemcanmeetthe
followingrequirements.
• Maintainspecifiedclearancestocombustibles,andsafe
distancefromtheheat-sensitivematerial,equipmentand
workstations.
• Thestatedclearancestocombustiblesrepresent
asurfacetemperatureof90°F(30°C)aboveroom
temperature.Buildingmaterialswithlowheattolerance
(suchasplastic,vinylsiding,canvas,etc.)maybesubject
todegradationatlowertemperatures.Itistheinstallers
responsibilitytoassurethatadjacentmaterialsare
protectedfromdegradation.
• Provideasuspensionwithverticallengthofchainor
swingingrodwhichhasatleast2inchesofhorizontal
travelforeachburnerinastraightrun.Besurethe
suspensionsystemissufficientlyflexibletoaccommodate
thermalexpansionwhichoccursasthesystemheatsup
(seeFigure6onpage12).
• Provideaccesstoburnersforservicing,preferableon
bothsides,aboveandbehindtheburnerforremoval.
• Provideaminimumof18inchesofclearancebetween
burnersandbuildingwalls.(Alwaysobserveminimum
clearancestocombustibles.)
• Besuretheheaterhasadownwardpitchofone-half
inchper20feetawayfromtheburner.
• Providesignsinstorageareastospecifymaximum
stackingheighttomaintainrequiredclearancesto
combustibles.
• Planlocationsupports(seeFigure2A-Fstartingonpage
8).Locateasupportnearallelbows.
• Theinstallationmustconformwithlocalbuildingcodes
orintheabsenceoflocalcodes,withtheNationalFuel
GasCode,ANSIZ223.1/NFPA54ortheNaturalGas
andPropaneInstallationCode,CSAB149.1.
• Ifanexternalelectricalsourceisutilized,theheater,
wheninstalled,mustbeelectricallygroundedin
accordancewiththeNationalElecticalCode,ANSI/
NFPA70orcurrentCanadianElectricalCode,CSA
C22.1.
4
Enerco | Heatstar ERXL Series Heater Operating Instructions and Owner’s Manual
Clearances To Combustibles
TABLE 1:MinimumClearancestoCombustibles(UseFigure1onpage5asaGuide)
Reflector Type Position ERXL-40 ERXL-60 ERXL-80 ERXL-100 ERXL-125 ERXL-150 ERXL-175
Standard
Reflector
(Horizontal)
A
B
C
D
6”
30”
55
30”
6”
30”
55
30”
6”
36
55
36
6”
36
74
36
6”
36
87
36
6”
36
87
36
8”
36
87
36
45°ReflectorTilt
A
B
C
E
F
12 ”
30”
55
36
60”
12 ”
30”
55
36
60”
18
36
55
36
60”
18
36
74
36
60”
18
36
87
36
60”
18
36
87
36
60”
18
36
87
36
60”
U-TubeStandard
(Horizontal)
A
B
C
D
6”
30”
55
30”
6”
30”
55
30”
6”
36
55
36
6”
36
74
36
6”
36
87
36
6”
36
87
36
8”
36
87
36
U-TubeOpposite
45°
A
B
C
F
12 ”
30”
55
60”
12 ”
30”
55
60”
18
36
55
60”
18
36
74
60”
18
36
87
60”
18
36
87
60”
18
36
87
60”
U-TubeFull4
A
B
C
E
F
12 ”
30”
55
36
60”
12 ”
30”
55
36
60”
18
36
55
36
60”
18
36
74
36
60”
18
36
87
36
60”
18
36
87
36
60”
18
36
87
36
60”
Unvented AboveA 36” 36” 36” 36” 36” 36” 36”
WARNING:
FIRE OR EXPLOSION HAZARD
CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY OR DEATH.
Inallsituations,clearancestocombustiblesmustbemaintained.Failuretoobserveclearancestocombustiblesmayresultinproperty
damage,severeinjury,ordeath.
Minimumclearancesmustbemaintainedfromvehiclesparkedbelowtheheater.Signsshouldbepostedinstorageareastospecify
maximumstackingheighttomaintainrequiredclearancestocombustibles.
Cautionshouldbeusedwhenrunningthesystemnearcombustiblematerialssuchaswood,paper,rubber,etc.Considerationshouldbe
giventopartitions,storageracks,hoists,buildingconstruction,etc.
TABLE1givesminimumacceptableclearancestocombustibles.ClearancesasshowninTABLE1arenotforuseinfour-sidedenclosures.
5Operating Instructions and Owner’s ManualEnerco | Heatstar ERXL Series Heater
D
A
C
STANDARD REFLECTOR
A
E
C
E
45 DEGREE REFLECTOR TILT
C
A
EF
U-TUBE OPPOSITE 45 DEGREE
A
CD
U-TUBE STANDARD
C
E
A
E
U-TUBE FULL 45
BE
FRONT AND BACK CLEARANCE
Clearances To Combustibles
Figure 1: ClearancesToCombustibles(RefertoTABLE1onpage4)
A
C
EF
STANDARD REFLECTOR
D
A
C
A
C
D
“U”-Tube,Standard
A
C
D
F
“U”-Tube,Opposite45°
F
C C
AA
E
A
F
“U”-Tube,Full45°
C
AC
B
B
FrontandBackClearance
6
Enerco | Heatstar ERXL Series Heater Operating Instructions and Owner’s Manual
SECTION 3: Installation & Assembly
TUBECOUPLING(14612)
KEYFORTUBECOUPLING
(14616)
TUBEHANGER
(14585P)
HEATEXCHANGERTUBE10'
(06413)
TURBULATORBAFFLE10'(03445)
TURBULATORBAFFLE5'(03447)
**NOTINCLUDEDWITHALLMODELS**
**ONLYHEATERS30'LENGTHANDUNDER**
REFLECTOR10'
(00418A)
VENTADAPTER
(19021)
BURNERBOX
7Operating Instructions and Owner’s ManualEnerco | Heatstar ERXL Series Heater
Installation Procedure
Takemaximumadvantageofthebuildingupper
structure,beams,joists,purlins,etc.,fromwhichto
suspendtheheater.Thereisnouniquesequencefor
installationofthetubing.On-siteobservationwillusually
revealalogicalsequence.Begintheinstallationatthe
mostcriticaldimension.Thiscouldsavetime.Watchfor
swingingdoors,overheadcranes,carliftsetc.Reflectors
andtubingcanbeinstalledasyoumovealong.Carefully
adjustsystempitchateachpositiontoleveltheheater.
Pitchdownone-halfinchin20feet(awayfromburner).
DON’TPressuretestthegaslineusinghighpressure(greater
than½PSIG)withoutclosingthehigh-pressureshutoff
cocks.Failuretodosowillresultindamagetothe
burners.
DO Familiarizeyourselfwithlocalandnational
codes.
Burner Housing
Mustalwaysbe
installedhorizontally.
Tube and Reflector Hanger
Installimmediatelyafterfirst
coupling.
Turbulator Assembly
EnercoGroup,IncnormallyshipsEner-Radiantheaters
withturbulatorsassembledintoappropriatetubes.
Tube and Reflector Hanger
Suspendsystemfromthesehangers.
Minimumtwo(2)requiredpertube.
Reflectors
Alternateoverlapasshown
onoverview.Lengthof
reflectorandamountof
overlapisindicated.
10'2-1/2" ALUMINIZED
Heat Exchange Tubes
Suppliedin10ft.lengths.
Tube Coupling Assembly
Couplingshouldbeorientedwith
slidebarontop,andallcouplings
should“point”inthesamedirection.
Where Field Changes Occur
TurbulatorSectionsandAdapterareavailablein
sectionsandmustbeassembledbeforeinstallation
(SeeFigure3fordetails).Thenumberofsections
requiredisindicated.
AssembletheheatercomponentsasshowninFigures2A,2B,2C,2D,2E,2Fand2G.Optionalreflectorconfigurationsareshownin(Figure
1).Installappropriatedsuspensionhardware,beamclamps,chainorrodatpredeterminedlocations.Adjustmentofchainlengthwillprovide
uniformpitch.
 Developaplannedprocedurewhichwillconservematerial
andlaboronthejob.
 Checktoseethatallmaterialandequipmentisonthejob
beforestartinginstallation.
 Allowforthermalexpansionofthehottube.
 Installthegasconnectoronlyasshownininstructions(see
Figure14onpage17).
 Haveslipjointswhererequiredbetweenreflectorstokeep
themfrombucklingorcomingapart.
 Provide1sq.inchoffreeairopeningtoeach1,000BTU/hr.
ofheaterinput(butnotlessthan100sq.inches)inenclosed
spaces.Oneopeningshouldbewithin12inchesofthetop
andonewithin12inchesofthebottomoftheenclosure.
FIGURE 2: Ener-Radiant XL Overview
Vent Adapter
Usedtoattachtheheat
exchangertubingtoventpipe.
8
Enerco | Heatstar ERXL Series Heater Operating Instructions and Owner’s Manual
HANGER HANGER
18” 18”
10’ 2-1/2” ALUMINIZED
ALUMINIZED
FIGURE 2B: Ener-Radiant XL Model ERXL-60, ERXL-80, Assembly Overview
20 ft. Exchanger length. 21 ft. - 4 in. Total Heater length. 4 Suspensin points indicated.
FIGURE 2A: Ener-Radiant XL Model ERXL-40
10 ft. Exchanger length. 11 ft. - 4 in. Total Heater length. 2 Suspension points as indicated.
HANGER HANGER HANGER HANGER
18” 18” 18” 18”
10’ 2-1/2” 10’ 2-1/2”
ALUMINIZED
2-1/2” OVERLAY TYP
(1) Turbulator Sections
ALUMINIZED
FIGURE 2D: Ener-Radiant XL Model ERXL-100 Assembly Overview
30 ft. Exchanger length. 31 ft. - 4 in. Total Heater length. 6 Suspension points as indicated.
FIGURE 2C: Ener-Radiant XL Model ERXL-80, Assembly Overview
30 ft. Exchanger length. 31 ft. - 4 in. Total Heater length. 6 Suspension points as indicated
18” 18” 18” 18” 18” 18”
10’ 2-1/2” 10’ 2-1/2” 10’ 2-1/2”
(1) Turbulator Sections
HANGER HANGER HANGER
Typ.
HANGER
ALUMINIZED ALUMINIZED
9' Long Turbulator Section
10' Long Turbulator Section
5' Long Turbulator Section
10' Long Turbulator Section
9Operating Instructions and Owner’s ManualEnerco | Heatstar ERXL Series Heater
FIGURE 2E: Ener-Radiant XL Model ERXL-100, ERXL-125
40 ft. Exchanger length. 41 ft. - 4 in. Total Heater length. 8 Suspension points as indicated.
FIGURE 2F: Ener-Radiant XL Model ERXL-125, ERXL-150, ERXL-175
50 ft. Exchanger length. 51 ft. - 4 in. Total Heater length. 10 Suspension points as indicated.
FIGURE 2G: Ener-Radiant XL Model ERXL-150, ERXL-175
60 ft. Exchanger length. 61 ft. - 4 in. Total Heater length. 12 Suspension points as indicated.
10’ 2-1/2” 10’ 2-1/2” 10’ 2-1/2”
10’ 2-1/2”
10’ 2-1/2”
18”
Typ.
ALUMINIZED ALUMINIZED ALUMINIZED ALUMINIZED ALUMINIZED
18” 18” 18” 18” 18” 18” 18” 18” 18”
10’ 2-1/2” 10’ 2-1/2” 10’ 2-1/2”
10’ 2-1/2” 10’ 2-1/2” 10’ 2-1/2”
18”
Typ.
ALUMINIZED ALUMINIZED ALUMINIZED ALUMINIZED ALUMINIZEDALUMINIZED
18” 18” 18” 18” 18” 18” 18” 18” 18” 18” 18”
ALUMINIZED ALUMINIZED ALUMINIZED ALUMINIZED
18”
Typ.
18” 18” 18”
10’ 2-1/2” 10’ 2-1/2” 10’ 2-1/2” 10’ 2-1/2”
18" 18" 18" 18" 18" 18" 18"
10
Enerco | Heatstar ERXL Series Heater Operating Instructions and Owner’s Manual
FIGURE 3: Ener-Radiant XL Dimensions & Suggested Mounting Heights
(someModels)
Turbulator
HeatExchanger Tubing (someModels)
Turbulator
HeatExchanger Tubing
MinimumTotalLength(seechartbelow)
Burner Side View
Burner Ratings and Heat Exchanger Lengths: (NG and LP) Suggested Mounting Heights
Model # Rate (BTU/Hr.) Heat Exchanger
Length Turbulator Minimum
Total Length
Suggested
Min. Space
Typical
Mounting
Height Spot
ERXL-40 40,000 10ft. 9ft. 10'-4' 8'-10' 10’-14'
ERXL-60 60,000 20ft. 10ft. 21'-4' 10’-12’ 10’-14’
ERXL-80 80,000 20ft. 10ft. 21'-4' 12’-15’ 12’-15’
ERXL-80 80,000 30ft. 10ft. 31'-4' 12’-15’ 12’-15’
ERXL-100 100,000 30ft. 5ft. 31'-4' 12’-15’ 12’-15’
ERXL-100 100,000 40ft. None 41'-4' 15’-18’ 12"-15'
ERXL-125 125,000 40ft. None 41'-4' 15’-20’ 14’-19'
ERXL-125 125,000 50ft. None 51'-4' 15’-18’ 14’-19'
ERXL-150 150,000 50ft. None 51'-4' 20’-23’ 15’-25'
ERXL-150 150,000 60ft. None 61'-4' 20’-25’ 15’-25'
ERXL-175 175,000 50ft. None 51'-4' 20’-23’ 15’-25'
ERXL-175 175,000 60ft. None 61'-4' 20’-25’ 15’-25'
Burner Rear View
9.25"(23.49cm)
9.25"(23.49cm)
17.75"(45.08)
11 Operating Instructions and Owner’s ManualEnerco | Heatstar ERXL Series Heater
Couplings: Tubeandtubefittingsareconnectedbywrap-
aroundcouplingswhichclampbymeansof
atapered,hammer-drivenlockmember.The
startingendsofthecouplingandlockmember
areidentifiedby1/4”holeswhichareput
togetherwhenstartingassembly.Besurethe
tubeendsareinlineandtubeendsbuttagainst
stoppin(s)insidecoupling.Theslidebaristobe
hammer-driventoapointofsecuringthecoupling
snuglytothetubes.Over-drivingwillresultin
distortionofthecouplingorslidebarliptoa
pointdecreasingtheholdingthecapabilityofthe
coupling.(SeeFigure4)
ElbowFittingDimensions
FIGURE 5: Installation of Elbow & Coupling
ElbowPackage: Stk.#F106415ElbowPackageincludes:
  (1)elbow,(1)coupling.Installelbow
intoradianttubesequencewhereplans
indicatea90°bend(seeFigure4).
U-TubeFittingDimensions 180°U-Tube
Stk.#i ncludes:F106414U-TubePackage
radianttubesequencewhereplans
indicatea180°bend
(seeFigure4).
COUPLING ASSEMBLY
Plain Coupling - 14612
Key for Coupling - 14616
Tighten
Loosen
Hole 1
Coupling
Assembly
Impact
Block
Hole 2
Whenassemblingcouplingnote
thelocationofHole1andHole2
Orientcouplingsothat
theimpactblockisabove
tubecenterline.
TUBECOUPLING
KEYforCOUPLING
FIGURE 4:
(38.73 CM)
(15.24 CM)
18" (45cm)
10"
(25cm)
(10cm)
(43cm)
9" (22cm) Radius
90°
(1) U-tube, (1) coupling
Install U-tube elbow into
12
Enerco | Heatstar ERXL Series Heater Operating Instructions and Owner’s Manual
A
Chainkit-Stk.#17370
Onechainkitwillsuspendone10ft.sectionoftubeandone10ft.
sectionofreflector.
FIGURE 7: Tube and Reflector Hanger
FIGURE 7: Mounting Flange / Tube Detail
1) Inserttube06413intofrontcastingtopoint(A).
2) Tighterallsetscrewsmarked(B)untilsnug.
3) Afterbothsetscrewsaresnug,turneach
additional1/4turntosecuretubeinplace.
FIGURE 8: Burner Box / Transition Tube Detail
FIGURE 6: Typical Suspension Details
Locknut
Washer
WoodBeam
Washer
ScrewHook
min.3/8"(10mm)
I-Beam
Beam
Clamp
AsReq'd
S-Hook
BarJoist
Clip
Truss
Concrete
Beam
Anchor
MountingFlange
CapScrew
Stk.98012
SplitLockWasher
Stk.#98527
Gasket
Stk.#12397
Burner Box
(flameobservation
windowfacingdown)
horizontal reflector position (standard)
angle mounting ring
radiant tube
horizontal mounting ring
hanger
reflector
top
side 4reflector position (optional)
below
FIGURE 9: Reflector End Cap
Partslist
100419ReflectorEndCap(Qty1)
209369SpringClip(Qty4)
FlangeKit#06428XL
KitIncludes:Flange,Screws(4),LockWashers(4),Gasket(1)
B
B
13 Operating Instructions and Owner’s ManualEnerco | Heatstar ERXL Series Heater
SECTION 4
Engineering Specifications
ThetotalheatingsystemsuppliedshallbedesigncertifiedbyCSA
underANSIZ83.20alatestrevisionandCGA2.34alatestrevision.
A. Burner & Burner Controls
1.Burnersshallbecapableoffiringwithoneofthefueloptionsas
specifiedonthepurchasedocuments:NaturalGasorLP.
2.Burnersshallbesuppliedtofireatanyoneoftheinputratesas
specified.
ERXL-40 40,000BTU/Hr. ERXL-125125,000BTU/Hr.
ERXL-60 60,000BTU/Hr. ERXL-150150,000BTU/Hr.
ERXL-80 80,000BTU/Hr. ERXL-175175,000BTU/Hr.
ERXL-100 100,000BTU/Hr.
3.Burnershallbeequippedwithadirectsensesilicon-carbidehot
surfaceignitioncontrolsystemwith100%shut-offignitiondevice.
Powersuppliedtoeachheatershallbe120V,60Hz,singlephase.
Burnersshallberatedfor1.0Amp(run)and5.0Amp(start.)
4.Burnershallbeequippedwiththermaloverloadmotor
protection,balancedairrotor,combustionairprovingsafety
pressureswitch,andviewingwindowforflameobservation.
5.Whenspecified,incontaminatedenvironments,theburnershall
becapableofsupplyingoutsideairtoeachburnerforthesup-
portofcombustion.
6.Allburnersshallbepre-wiredwithagroundedelectrical
cordandplug.
7.Atcustomer’schoice,burnersmaybecontrolledwitheither
anoptionallinevoltagethermostatorbyoptionallowvoltage
thermostatswithanappropriatelowvoltagetransformerrelay.
8.Gassupplytotheburnersshallconformtothefollowing:
 1/2”NPTgasconnectorsize
 NaturalGas: 4.6”W.C.MIN,7.0”W.C.MAX
 LPGas: 11”W.C.MIN,14.0:W.C.MAX
B. Heat Exchanger
1.Radianttubingshallbe4”diameteraluminizedsteelsuppliedin
10ft.sections.Sectionsshallbejoinedwithstainlesssteelwrap-
aroundcouplings.
2.Reflectortobeofaluminummaterialanddesignedtodirectall
radiantoutputbelowhorizontalcenterlineofradianttube.
3.Heatersshallbeventedaccordingtomanufacturer’s
recommendations.
Gas pressure at MANIFOLD:
Natural Gas: 3.5” W.C.
LP Gas: 10.5” W.C.
1/2”NPTGasConnectorSize
Gas INLET pressure:
Natural Gas: 4.6” W.C. Min
11.0” W.C. Max
LP Gas: 11.0” W.C. Min
14.0” W.C. Max
1/2”NPTGasConnectorSize
Electrical Rating:(AllModels)
120V-60Hz
1.0AMP(Run)5.0AMP(Start)
Dimensions:
Flue Connection Size…………………4”
Outside Air Connection Size………4”
14
Enerco | Heatstar ERXL Series Heater Operating Instructions and Owner’s Manual
COMMON VENTING - (2) Heaters (Horizontal and Vertical)
Model# H=6ft. H=8ft. H=15ft.
ERXL-40 D=7" D=6" D=6"
ERXL-60 D=7" D=6" D=6"
ERXL-80 D=8" D=7" D=6"
ERXL-100 D=8" D=8" D=7"
ERXL-125 D=10" D=10" D=8"
ERXL-150 D=10" D=10" D=8"
ERXL-175 D=10" D=10" D=8"
SECTION 5
Venting / Ducting
General Requirements
Thisheatermustbeventedinaccordancewiththespecifications
containedinthismanualandwiththefollowingnationalcodes
andanystate,provincialorlocalcodeswhichmayapply:
•RefertoNationalFuelGasCodeNFPA54/ANSIZ223.1-latest
revision.
•CANADA:RefertoNaturalGasandPropaneInstallationCode
CSAB149.1-latestrevision.
Theheatermaybeventedtotheoutdoorseitherverticallyor
horizontally.
Optionaloutsideairsupplymaybedirectedtotheheater
horizontallyorvertically.
Besurethatthemethodselectedforventingheatercomplies
withallcodesasrequiredforeachparticularlocation
Theuseofsingle-wallventpipe(26gauge)isrecommended.A
sectionofdouble-wallventpipeisrecommendedwhenpassing
throughtherooforwall.
Exhaustendofheaterwillaccepta4'(10cm)ventpipeusing
theventadapter.Installtheventadapterwiththeseamontop,
secureallventjointswithaminimumof3#8x3/8"sheetmetal
screwsandsealalljointsusingahightemperaturesilicone
sealant.
Ifcondensationintheflueisaproblem,thefluelengthshould
beshortenedorinsulated.
Ventpipemustbeslopeddownwardawayfromtheburner
1/4"(.6cm)forever10'(3m).
VENTLENGTHS:
• Maximumtotalventlengthallowedinthirty(30’)feet.
• Maximumoutsideairsupplyductallowedthirty(30’)feet.
• Maximumtotalventlengthplusoutsideairsupplylength
shallnotexceedfifty(50’)feet.
NOTE:
Atotaloftwo(2)elbowsareallowedforventand 
outsideairsupplycombination.Subtract5'feetperadditional
elbowfrommaximumlengthallowedif3ormoreelbowsare
used.
Installaminimum18"(30cm)straightlengthofductforair
intakeorventbeforeanyTeeorelbow.
Alternative Arrangements / Optional Equipment for Venting
Unvented Operation
a) Sufficientventilationmustbeprovidedintheamountof4
CFMper1,000BTU/hr.firingrate.
b) RefertoANSIZ223.1-latestrevision,NFPA-54andlocal
codesforadditionalinformation.
c) Useofoptionaloutsidecombustionairisnotrecommended
withunventedheatersduetopressureconsiderations.Refer
topage16
Horizontal Venting
a) Four(4”)inchO.D.fluepipeisrequired.Thirty(30’)feet
maximumlengthisrecommended.
b) Allfluejointsshouldbesealedusingsuitableproductsuch
asGeneralElectricRTV106orPermatexForm-A-GasketRed
HighTemperatureSiliconeAdhesiveSealant.
c) Donotinstallanyelbowor45fittingtobringventlower
thanthehorizontaltubesystem.
d) Ventterminalshouldbeinstalledataheightsufficientto
preventblockagebysnow.
1) Ventmustexitbuildingnotlessthanseven(7’)feet
abovegradewhenlocatedadjacenttopublicwalkways.
2) Ventmustterminateatleastthree(3’)feetaboveany
forcedairinletlocatedwithintenfeet(10’).
3) Ventmustterminateatleastfour(4’)feetbelow,four
(4’)feethorizontallyfrom,orone(1’)footaboveany
door,window,orgravityinletintoanybuilding.
4)Ventterminalshallbelocatedatleasttwelve(12”)inches
fromanyopeningthroughwhichventgasescouldenter
thebuilding.
5) Ventterminalmustbebeyondanycombustibleover
hang
Vertical Venting
a) Four(4”)inchO.D.fluepipe,maximumthirty(30’)feet
inlengthmaybeusedasshownwithapprovedventcap.
(SeeGeneralRequirementsonthispageforadditional
information.)
b) Aninsulatedthimblemayberequiredtopassthrough
combustiblestructures(checklocalcodes).
c) Allfluejointsshouldbesealedusingsuitableproducts(see
recommendationforhorizontalventing.)
Common Venting
a) Horizontalruntoventmustneverexceed75%ofthevertical
heightofthevent.RefertoANSIZ223.1-latestrevision,
NFA-54forproperventsizesandinstallation.
b) Openareaofcommonventmustequalthesumoftheopen
areaofindividualventsconnectedtoit.(Seechartbelow
anddiagrams-page14.)
c) Usedoublewallventasrequired(checkcodes.)
d) Alljointsmustbesealedusingsuitableproducts.
e) Connectionstocommonstackmustbepositionedtoavoid
directoppositionbetweenstreamsofcombustiongases.
15 Operating Instructions and Owner’s ManualEnerco | Heatstar ERXL Series Heater
FIGURE 12: Common Roof Venting
HORIZONTAL COMMON VENTING
VERTICAL COMMON VENTING
SIDE VIEW
TOP VIEW
Type "B" Vent required outdoors.
Vent Adapter Stk. #19021
At least 1/4" per foot rise or pitch
must be maintained on horizontal
runs from heater to vent.
Roof
Secure all joints with 3 (minimum) #8 x 3/8"
sheet metal screws and seal all joints.
H
Approved Vent Cap
Type "B" Vent required outdoors.
Vent Adapter Stk. #19021
Outside Wall
H
Vent Cap
Flashing
Wall Thimble
(If Applicable)
Burner Box Burner Box
Burner Box
Burner Box
Burner Box
Burner Box
D
Burner Box Burner Box
D
4” Aluminized steel Heat Exchange Tube
4” Aluminized steel Heat Exchange Tube
Type"B"Ventrequiredoutdoors.
VentAdapterStk.#19021
OutsideWall
Securealljointswith3(minimum)#8x3/8"
sheetmetalscrewsandsealalljoints.
H
VentCap
WallThimble
(IfApplicable)
BurnerBox
BurnerBox
D
D
16
Enerco | Heatstar ERXL Series Heater Operating Instructions and Owner’s Manual
FIGURE 10: Unvented Operation
36”
36”
A
1.Ventilationequalto4CFMper1,000BTU/HRfiringratemust
beprovidedinunventedheaterinstallations
2. FordimensionsA"unvented"referto(Figure1-Minimum
ClearancestoCombustibles.)
FIGURE 10A: Single Wall
Singlewallventrun
Singlewallterminalend
FIGURE 10b: Double Wall
Doublewallventrun
Doublewallterminalend
FIGURE 11: Vertical Venting
18"(45cm)
18" (45cm) Min. 3'-0" (91cm) Min.
8"(20cm) to 10"(25cm) Max.
6' (182cm) Min.
18" (45cm) Min. 3'-0" (91cm) Min.
6' (182cm) Min.
2"(5cm) Clearance thimble
2"(5cm) Clearance thimble
required when u pipe
extends through
combustible materials
(91cm)
(91cm)
17 Operating Instructions and Owner’s ManualEnerco | Heatstar ERXL Series Heater
Outside Combustion Air Supply
TheEner-RadiantXLheaterisapprovedforinstallationwith
anoutsideairsupplysystem.Somecompoundssuchas
halogenatedhydrocarbonsorothercorrosivechemicalsinthe
aircanbedrawnintotheequipmentandcauseanaccelerated
rateofcorrosionofsomeoftheheatercomponents.Theuse
ofsuchchemicalcompoundsneartheenclosureshouldbe
avoided.
IMPORTANT: If the building has a slight negative
pressure or contaminants are present in the air, an
outside combustion air supply to the heaters is strongly
recommended.
Foranoutsideairsupply,afour(4”)inchO.D.singlewallpipe
maybeattachedtotheheater.Theductmaybeuptoforty-five
(30’)ft.maximumlengthortwo(2’)ft.minimumlengthwith
nomorethantwo(2)elbows.(SeeGeneralRequirementson
page15foradditionalinformation.)
Theairsupplyductmayhavetobeinsulatedtoprevent
condensationontheoutersurface.Theoutsideairterminal
shouldbesecurelyfastenedtotheoutsidewallbydrillingfour
(4)1/4”diameterholesintheoutsideflange;woodscrewsor
boltsandexpansionsleevesmaybeusedtofastenterminal.
FIGURE 13: Non-Pressurized Outside Air Supply Duct
PVCPipe,“DryerHose”,orequivalentmaybeusedinsteadof
standardventpipe.
SECTION 6
Gas Piping
Readapplicablewarningsin(Section1)beforeproceedingwith
GasPipeinstallation.Improperinstallationmayresultinproperty
damage,severeinjury,ordeath.
Meterandservicemustbelargeenoughtohandlealltheburners
beinginstalledplusanyotherconnectedload.Thegaslinewhich
feedthesystemmustbelargeenoughtosupplytherequiredgas
withamaximumpressuredropof1/2”watercolumn.Whengas
pipingisnotincludedinthelayoutdrawing,thelocalgassupplier
willusuallyhelpinplanningthegaspiping.
A1/2”tappingateachburnerlocationmustbelocatedandoriented
asshownin(Figure14).Tochecksystempressure,putaplugged
1/8”NPTtappinginthegaslineattheconnectiontotheburner
farthestfromthesupply.Beforeconnectingtheburnerstothe
supplysystem,verifythatallhighpressuretestingofthegaspiping
hasbeencompleted.Donothighpressuretestthegaspipingwith
theburnersconnected.
Followtheseinstructionstoensureaprofessionalgassupply
installation:
• Supportallgaspipingwithsuitablepipehanging
materials.
• Usewroughtironorwroughtsteelpipeandmalleable
ironfitting.Allpipefittingsshouldbenewandfree
fromdefects.Carefullyreamthepipeandtubingends
toremoveobstructionsandburrs.
• UseL.P.gas-resistantjointcompoundonallpipe
threads.
• Checkthepipeandtubingendsforleaksbefore
placingheatingequipmentintoservice.When
checkingforgasleaks,usesoapandwatersolution:
NEVER USE AN OPEN FLAME.
Installtheflexgasconnectorasshown.Theflexgasconnector
accommodatesexpansionoftheheatingsystemandallowsforeasy
installationandserviceoftheburner.
FIGURE 14: Gas Line Connection with Stainless Steel Flex Gas
Connector
Shut-OffValvemustbeparallel
toburnergasinlet.The2”
displacementshownisforthecold
condition.Thisdisplacementmay
reducewhenthesystemisfired.
Shut–offValve
12 "
2"
1/2"StainlessSteelFlexGasConnector
Stk.#16401
90°
45°
45°
4" (10 cm)
Seal All Joints
4"
Heater Movement
Heater Movement
Heater Movement
Heater Movement
Outside Air
Terminal
Flex Pipe
6" (15 cm) to
12" (30 cm) Long
Flex Pipe
6" (15 cm) to
12" (30 cm) Long
Flex Pipe
6" (15 cm) to
12" (30 cm) Long
Outside Air
Terminal
NOTE:
Flue pipe requires additional
support. Flex pipe will not
support riser and outside
air terminal
Vertical Outside Air
Horizontal Outside Air
FIGURE 14A: Incorrect Gas Line Connection with Stainless
Steel Flex Gas Connector
18
Enerco | Heatstar ERXL Series Heater Operating Instructions and Owner’s Manual
SECTION 7
Wiring
Heatersarenormallycontrolledbythermostats.Linevoltage
thermostatsarewireddirectly(seeFigure15),24Vthermostatsare
wireddirectlyusingtheterminalsonburnerbox(seeFigure16).
HeatersmustbegroundedinaccordancewiththeNationalElectric
CodeANSI/NFPA-70orcurrentCanadianElectricalCode,CSA
C22.1.Heatersmayalsobecontrolledwithamanuallinevoltage
switchortimerswitchinplaceofthethermostat.
FIGURE 15: Line Voltage Thermostat Wiring
T
H
N
120v – 60 Hz
White
White
Green
Green
Supply Circuit
120v – 60 Hz
Supply Circuit
Burners
(Maximum – 2 per Thermostat)
Burners
(Maximum – 1 per Thermostat)
Black
Black
H
N
T
FIGURE 16: Low Voltage Thermostat Wiring
T
H
N
120v – 60 Hz
White
White
Green
Green
Supply Circuit
120v – 60 Hz
Supply Circuit
Burners
(Maximum – 2 per Thermostat)
Burners
(Maximum – 1 per Thermostat)
Black
Black
H
N
T
FIGURE 18: Ener-Radiant XL Burner Internal Wiring Ladder
FIGURE 17: Ener-Radiant XL Burner Internal Wiring
• Ifanyoftheoriginalwireassuppliedwiththe
appliancemustbereplaced,itmustbereplacewith
wiringmaterialhavingatemperatureratingofatleast
105°Cand600volts.
• Eachburnermustbeelectricallygroundedin
accordancewiththeNationalElectricCodeANSI/NFPA
-70orcurrentCanadianElectricalCode,CSAC22.1.
Diagram
VAC
120
120V 24V
Black
Black
Purple
Yellow
Yellow
Black
Black
Black
Green
Green
Orange
Transformer
White
White
White
THERMOSTAT
White
Blue
Gas Valve
Air Switch
Ignitor
Sensor
Motor / Blower Door Switch
Terminal
Bushing
120V
L2
(NEUTRAL)
White
White
White
White
White
White
Gray
Orange
Transfomer
Thermostat
Air Switch
Gas Valve
Door Switch Motor / Blower
Ignitor
Sensor
Blue
Yellow
Yellow
Purple
Black
Black
Black
Black
L2 (HOT)
24V
19 Operating Instructions and Owner’s ManualEnerco | Heatstar ERXL Series Heater
9. Aqualifiedserviceagencyshouldbecontactedforservice
otherthanroutinemaintenance.
10. Checkventterminalandfreshairinlettoseethattheyhave
notbeenblockedduringthenon-heatingseason.Ifeither
pipeisrestricted,theairswitchwon’tclose,resultingina
no-heatsituation.
Troubleshooting
 CAUTION:BeforeopeningtheEner-RadiantXL
burnerdoorforanytypeofservice,besure
thegassupplyhasbeenshutoffattheheater
andtheelectricalcordfromtheburnerbox
hasbeenunplugged.
Blower Motor 1.Isthethermostatcallingforheat?Isthere
Fails to Run: 115Vattheburnerreceptacle?
 2.Checkblowersidedoorforseal.Checkdoor
switch.Replaceifnecessary/
 3.Checkblowerforobstructions.Replace
blowerifnecessary.
Igniter 1.Checkigniterfordamage.Replaceif
Does Not Glow: necessary.
 2.Checkvoltageandresistanceatigniter.
(Voltageshouldbe115V.Resistanceshould
be40-75ohms.)
 3.Checkforobstructionstotheairinletand
outlet.
 4.Checkwiringandhoseconnectionstothe
airswitch.Replaceifnecessary.
 5.Checkvoltagesattransformerprimaryand
secondary.Replacetransformerormoduleif
necessary.
Valve Does Not Gaspressuredownstreamofgascontrolcan
Come On: bemeasurebyusingamanometerand
connectingtopressuretaponcontrol/
 1.ChecktoseeifmanualvalveheaterisON.
 2.Checktoseeifmanualvalveknobonheater
gascontrolinON.
 3.Supplygaspressurecanbecheckedat1/8”
NPTpressuretappingonheaterexternal
manualvalve.
 4.Checktoseeifgascontrolisopening:no
manifoldpressureindicatesvalveisclosed.
 Ifthevalveisclosed,eitherthegasvalveor
theignitionmoduleisfaulty.
WARNING:Donotdisconnectgroundleads
insideheater.Donotinterchangegrounded
andungroundedleadsontransformeror
ignitionmodule.
Burner Does Not 1.Checktoseeifgaslineswereproperly
Light: purgedofair.
 2.Checkinletandoutletgaspressureduring
ignitionperiod.
 Naturalinletpressureshouldbe4.6”
 Naturaloutletpressureshouldbe3.5”
 LPinletpressureshouldbe11.0”
 LPoutletpressureshouldbe10.25”
 3.Checkforproperorificeandairplate.
SECTION 8
Operation & Maintenance
Sequence of Operation
1. Turnthethermostatup.Whenthethermostatcallsforheat,
blowermotorwillenergize.
2. WhenthemotorapproachesnominalrunningRPM,theair
provingswitchclosesandactivatestheignitionmodule.
3. Theignitionmodulethenenergizesthehotsurfaceigniterfor
atimedwarm-upperiod(approximately45to60seconds.)
4. Afterthewarm-upperiod,thegasvalveisenergized.
5. Duringthelastpartofthesequence,theigniterisde-
energizedandisconvertedtoaflamesensingrod.
6. Ifaflameisdetected,thegasvalveremainsopen.Whenthe
callforheatissatisfied,andthesystemcontrolmechanism
de-energizestheburnerlinevoltagesupply,thegasvalvesare
turnedoff.
7. Ifnoflameisdetectedonasingle-trymodule,thegasvalve
isclosed,andthemodulewilllockoutuntilitisreset.Reset
isaccomplishedbyremovingpowerfromthemoduleforat
leastfive(5)seconds(thermostatcyclerequired.)
8. Ifnoflameisdetectedonathree-trialmodule,thegas
valveisclosed,andapurgeperiodbegins.Afterthepurge,
themoduleactstopowertheigniterforasecondwarm-
upperiod,andasecondtrialforignitionperiod.Ifflameis
stillnotestablished,athirdandfinalpurge,warm-up,and
trialcyclebegins.Afterthreetrials,themodulewilllockout
untilreset.Resetisaccomplishedbyremovingpowerfrom
themoduleforatleastfive(5)seconds(thermostatcycle
required.)
9. Onathree-trialmodule,ifflameisestablishedandlost
onthefirstorsecondtrial,thegasvalveisturnedoff,a
purge,warm-up,andtrialforignitionwilloccuronathree-
trialmodule,onlythreetrialsforignitionareallowedper
thermostatcycle.
Maintenance
Forbestperformance,thefollowingmaintenanceproceduresshould
beperformedbeforeeachheatingseason:
1. Besuregasandelectricalsupplytoheaterareoffbefore
performinganyserviceormaintenance.
2. Checkconditionofblowerscrollandmotor.Dirtanddust
maybeblownoutwithcompressedair,oravacuumcleaner
maybeused.Whenusingcompressedairdonotexceed30
psiinordertonotdamagefragilehotsurfaceigniter.
3. Checkconditionofburner.Carefullyremoveanydustor
debrisfrominsidetheburnerboxorburnercup.
4. Inspecttheigniter.Replaceigniterifthereisexcessivecarbon
residue,erosion,breakageorotherdefects.
5. Checktheinsideofthefiringtubewithaflashlight.Ifcarbon
orscalearepresent,scrapeoutthedepositswithawire
brushorrod,ormetalplateattachedtoawoodenpole.
6. Checktoseethattheburnerobservationwindowisclean
andfreeofcracksorholes.Cleanorreplaceasnecessary.
7. Checkthefluepipeforsootordirt.Aftercleaningas
necessary,re-attachthefluepipetotheheater.
8. Outsidesurfacesofheatermaybecleanedbywipingwitha
dampcloth.
20
Enerco | Heatstar ERXL Series Heater Operating Instructions and Owner’s Manual
Burner Does Not 1.Checkgroundwirecontinuity.
Stay Lit: 2.Checkburnerinternalwiringforreversed
leads.
 3.Checkinsulationontheigniterleads.
 4.Replacemoduleifnecessary.
Honeywell Valve LED Status
TheEner-RadiantXLseriesTubeHeaterisequippedwithahoneywell
SmartValve.Thisvalvehasabuilt-indiagnosticprogram,whichwill
assistintroubleshootingintheeventofavalve-relatedproblem.The
LEDor(LightEmittingDiode)islocatedonthetopofthevalveas
shownindiagrambelow.TheLEDstatusindicationsarelistedbelow
tohelpwiththetroubleshooting.
FIGURE 19:
OFF INDICATED
Off Nopowertothecontrol
Bright-Dim Normaloperation.
Thisindicationshowswheneverthesystemis 
 powered,unlesssomeabnormaleventhasoccurred.
2-Flashes Airflowprovidingswitchremainsclosedlongerthan
30secondsaftercallforheatbegins(airproviding 
 switchstuckclosed.)
3-Flashes Airflowprovidingswitchremainsopenlongerthan30
 secondsaftercombustionairblowerisenergized-or
 blowerdoesnotenergize.
4-Flashes Whitejumperwireisloose.
5-Flashes Flamesignalsensedoutofpropersequence.
6-Flashes SystemLockout.
LED
HoneywellSmartValve
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HeatStar ERXL175N Owner's manual

Category
Space heaters
Type
Owner's manual
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