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User Manual - Page 3

For MH400FAVT.

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3
Force-Air Propane Construction Heater Operating Instructions and Owner’s Manual
OPERATING PRECAUTIONS
Thisisapropane,direct-fired,forcedairheater.Itsintended
useisprimarilytemporaryheatingofbuildingsunder
construction,alteration,orrepair.
Propaneisheavierthanair.Ifpropaneleaksfroma
connectionorfitting,itsinkstothefloor,collectingthere
withthesurroundingair,formingapotentiallyexplosive
mixture.Obviously,propaneleaksshouldbeavoided,soset
upthepropanesupplywithutmostcare.ReadenclosedOdor
FadeandPropaneSheetforadditionalinformationabout
detectingpropaneleaks.Leakchecknewconnectionsor
reconnectionswithasoapandwatersolutionandfollowall
connectioninstructionsherein.Also,askyourpropanedealer
foradviceonthepropaneapplicationandsupplyinstallation
andaskhimtocheckitifthereareanyquestions.
Thisheaterwasdesignedandcertifiedforuseasa
constructionheaterinaccordancewithANSIStandardZ83.7/
CGA2.14.Checkwithyourlocalfiresafetyauthorityifyou
haveanyquestionsaboutyourapplications.Otherstandards
governtheuseoffuelgasesandheatproducingproducts
inspecificapplications.Yourlocalauthoritycanadviseyou
aboutthese.
Direct-Firedmeansthatallofthecombustionproductsenter
theheatedspace.Eventhoughthisheateroperatesveryclose
to100percentcombustionefficiency,itstillproducessmall
amountsofcarbonmonoxide.Carbonmonoxide(calledCO)
istoxic.Wecantoleratesmallamountsbutnotalot.COcan
buildupinaheatedspaceandfailuretoprovideadequate
ventilationcouldresultindeath.
Thesymptomsofinadequateventilationare:
•headache
•dizziness
•burningeyesandnose
•nausea
•drymouthorsorethroat
So,besuretofollowadviceaboutventilationinthese
operatinginstructions.
ForcedAirmeansthatablowerorfanpushestheairthrough
theheater.Propercombustiondependsuponthisairflow;
therefore,theheatermustnotberevised,modified,
or
operatedwithpartsremovedormissing.Likewise,safety
systemsmustnotbecircumventedormodifiedinorderto
operatetheheater.
Whentheheateristobeoperatedinthepresenceofother
people
,theuserisresponsibleforproperlyacquainting
those presentwiththesafetyprecautions,instructions,and
ofthehazardsinvolved.
SAFETY PRECAUTIONS
1. Checktheheaterthoroughlyfordamage.DONOToperatea
damagedheater.
2. DONOTmodifytheheateroroperateaheaterwhichhas
beenmodifiedfromitsoriginalcondition.
3. Useonlypropanegas.
4. UseonlyVAPORWITHDRAWALpropanesupply.Ifthereis
anyquestionaboutvaporwithdrawal,askyourpropane
dealer.
5. Mountthepropanecylindersvertically(shutoffvalveup).
Securethemfromfallingorbeingknockedoverandprotect
themfromdamage.
6. Locatepropanecontainersatleast(USA)7ft.(2.13m),
(Canada)10ft.(3m)fromtheheateranddo notdirect
exhausttowardcontainers.
7. IMPORTANTUseonlythehoseandregulatorassembly
providedwiththeheater.Matchthecolorstripeonthe
hangtagattachedtothehoseassemblywiththecoloron
thelabellocatednearthepropaneinletfittingontheheater.
Inspecthoseassemblybeforeeachuseoftheheater.Ifthere
isexcessiveabrasionorwear,orhoseiscut,replacewithhose
assemblylistedonpartslistbeforeusingheater.
8. Forindooruseonly.Areamustbewellventilated.Figure 1
(alsosee“OperatingPrecautions”).
9. Ifatanytimegasodorisdetected,IMMEDIATELY
DISCONTINUEoperationuntilthesourceofgashasbeen
locatedandcorrected.ReadenclosedOdorfadeandPropane
Sheetforadditionalinformationaboutdetectingpropane
leaks.
10. Installtheheatersuchthatitisnotdirectlyexposedtowater
spray,rainand/ordrippingwater.
11. Maintainminimumclearancefromnormalcombustible
material(likepaper).Figure 2
12. Duetothehighsurfaceandexhausttemperatures,adultsand
childrenmustobserveclearancestoavoidburnsorclothing
ignition.
13. Operateonlyonastable,levelsurface.
14. Donotusewithductwork.Donotrestrictinletorexit.
15. Useonlytheelectricalpowerspecified.Theelectrical
connectionandgroundingmustcomplywithNational
ElectricalCode-ANSI/NFPA70(USA)andCSAC22.1
CanadianElectricalCode,Part1(Canada).
16. Useonlyaproperlygrounded3-prongreceptacleorextension
cord.
17. Donotmove,handleorservicewhilehotorburning.
18. Useonlyinaccordancewithlocalcodesor,intheabsenceof
localcodes,withtheStandardfortheStorageandHandling
ofLiquefiedPetroleumGasesANSI/NFPA58andCSAB149.1,
NaturalGasandPropaneInstallationCode.
Opening Opening
Heater nearfloor nearceiling
Forcedair(400 FAVT) 3.5ft
2
3.5ft
2
Figure 2
MINIMUMCLEARANCE:Fromnormalcombustiblematerial
Clearance ForcedAir400FAVT
Fromfloor.......................................................0ft
Fromoutlet.....................................................8ft
Fromsides......................................................2ft
Fromtop.........................................................3ft
Locate10ft.fromcanvasorplastictarpaulinsorsimilar
coveringsandsecurethemtopreventflappingormovement
duetowindaction.
Figure 1
VENTILATION:Minimumopeningsrequired
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