4.Burnerstartsup,Thenlocksoutattherelay
TEMPORARY HEATERS (Oil-fired)
*This information does not take precedence over OH&S. All employees should be familiar with the Saskatchewan Employment Act and the OH&S Regulations.
APPROVED BY: / REVIEWED REVISED
DATE:
MATERIAL & EQUIPMENT REQUIRED / PERSONAL PROTECTIVE EQUIPMENT
extensioncord,fireextinguisher,fuel(dieselorkerosene / Foot Protection
JOB STEPS
1.Installation:
-Therecommendationsoflocalauthoritieshavingjurisdictionmustbefollowed.ForrecommendedinstallationpracticesrefertoC.S.A.Standard8139.
Whenfiringtheunitin anenclosedarea,3squarefeetmustbeprovidedtoallowthefreeentryoftheairrequiredforoperation.
Forelectricalsupply,use3-wirereceptaclewith"U"ground.
Donotoperatetheunitinpartlyventilatedareaswithoutafluepipeorin closeproximitytocombustiblesurfacesmaterials
Installationclearances: Top-3inches;Sides-6inches;Burnerend-2feet;Dischargeend- 1Ofeet;FluePipe-18inches;Floor-Combustible.
2.FluePipeConnections:
-Whentheheaterisconnectedtoafluepipethefluepipeshallterminateinavertical sectionatleast2feet long.
-Horizontalrunsshouldhaveriseratioof1in1Oawayfromtheheater
-Thechimneyshouldhave.02"WCdrafttoensure safeoperationoftheunit.Wheredowndraftareliabletooccur,aventcapshouldbeused.
3.Generaloperatingsafeguards:
-donotstartheaterwhenexcessoilhasaccumulatedinchamber
-donotfilltankwhileunitisoperating
-donotshutoffbydisconnectingsupplycord
-neveruseextensioncordssmallerthan12A.W.G.;ifcordislongerthan50',use10A.W.G. minimum
-donotusegasoline,crankcaseoilorheavierthanNo.2furnaceoil
-electricalrequirement-20ampcircuitOHV350-11,30ampcircuitOHV500
4.Tostartheater:
-flipswitchtoOFFposition
-pluginsupplycordto115voltoutlet
-flipswitchtoMANUALposition
-forthermostatoperation,flipswitchtoTHERMposition
5.If heater fails to start:
-pressMANUALRESETbuttononburnerrelay
-checkfuellevel,(2-4gaiionstostart)
-checkforlowvoltageconditionand115voltsupply
-checkfuelfilterandsuctiontubing
-checknozzleassembly
6.Tostopheater:
-flipswitchtoOFFposition
-CAUTION-firingwillstopbutfanwillautomaticallycontinuetocycleuntilunitcoolsdown
JOB PROCEDURES / Page2 of 2
TEMPORARY HEATERS (Oil-fired)
SPECIFICATIONS
Model
OHV 350 -11
OHV 500 / Maximum Input
320,000 BTU/HR
420,000 BTU/HR / Nozzle Size
2.25 USGPH 600 Solid
3.00 USGPH 600 Solid / Pump Pressure
100 PSI Max
100 PSI Max / Fuel Tank Cap
35 Imp. Gal
35 Imp. Gal / Fuse Size
15 Amp
15 Amp / Electrical Supply
115 Volt 1 Phase
60 Cycle
115 Volt 1 Phase
60 Cycle
Troubleshooting Guide
1.Burnerwillnotstart:
-checkfuse(replace)- checkhighlimit(replace)-checkmanualresetoilburnermotor-changesensor
-checktoensurenolightisreflectedtothesensor
2.Delayedignition:
-checkforproperelectrodesetting-checkthattheairshutterisnotoverlyopen-checktheisolatorsforcracksorfora- checkthatthepumppressureisproperlyset conductingcoatofsootoroil; - changenozzle
cracks sometimesoccurundertheelectrode- checkfuelfilter-ifdirty, replacebracketcausingashortcircuit
3.Smokyfire:
-checktheburnerfanblade-cleanifdirty-checkcombustionchamberforcracksorburnout
-checknozzle-ifclogged,it couldproduceanoffcentrefireresultinginasmokyfire
-checkcentrelegonnozzleassemblyto ensurenozzleiscentredinthe4"tube
-checkforloosenozzle
4.Burnerstartsup,thenlocksoutattherelay:
-checksensorandclean- replacesensor-checkyellowwiresbetweensensorandrelay- replacerelay
5.Mainfanwillnotcomeon-unitshutsdownonhighlimit:
-checkfanswitch- replacefanswitch-checkmotortoseeifpowerisgettingto- replacemotor themotor
6.Unitonbutcyclesonhighlimit:
-checkairflow- ensurebothductsarein- checkthatpropernozzleisinstalledplaceandclear - checkhighlimit-checkpumppressure;unitcould beoverfiring
7.- Ifunit hasbeenresetanumberoftimeswithoutignition there willbean accumulationofoil inthecombustionchamber.Tilttheunitupattheburnerendtolettheexcessoildrainoutofthesecondarychamber.
-Allowunittodrainfor15-20minutesoruntil alloilhasdrainedout.
-Openelectricalboxandjumperfanswitchsothattheburnerand fanstarttogether. Therewillbeasmokyfireafewminutesuntiltheexcessoil,thathassprayedonthewallsofthecombustion chamber, hasburntoff
-Whenunithasstabilizedandtheburnersetuptooperateproperly,shutofftheswitch.Letfan cooldownthechamberandstop.Removethejumperacrossthefanswitchandclosethe electricalpanel.Theunitshouldoperatenormally-ifnot,referto#2.