Use and Care Manual

6
Installation Instructions and Owner’s Manual
Gas Fired Infrared Space Heater
c. Alwaysreplacecoverscrewafteradjustmentandtightenfirmly
toensureproperoperation.
Manualgas
controlknob
Wrench
boss
Gas
inlet
Pilotstat
powerunit
Pressureregulator
adjustment(beneath
coverscrew)
Installlong
screwin
outsidecorner
Standard
pressure
regulator
(“A”model)
Step
opening
regulator
(“C”model)
Pilotgas
outlet
(pressure
tapping
directly
beneath)
Pilotflowadjustingscrew
(beneathcoverscrew)
Figure 8. Top view of standard capacity gas control.
TABLE 4. TROUBLESHOOTING CHART
Belowinchartformarevarioussymptomsofamalfunctioningsystem,possibledefectsthatwillcausethere
symptomsandsuggestedcorrectivemeasure.Thechartassumesthatthepropergaspressureisavailabletothe
heaterandthatthelightingprocedureisasstatedontheplateattachedtotheheater.
SYMPTOMS CAUSES SOLUTIONS
Burnerlightoffveryslow Partiallyblockedpilotorifice Re-adjustpilot
 Pilotoutofadjustment Replace
Burnerlightoffveryslowly Partiallyblockedburnerorifice Replace
Colorstaysdull 
Burnerflashback Lowgaspressure Correctlinepressureorcallyourgas
(roaringnoiseduringoperation  supplier
andceramicgridsurfacewillbedark) Damagedburner Replace
Ceramicgridorburnersootingup
(whenneworaftercleaning) Firstcheckfordamaged Replaceifdamaged
 burnerorifice
 Ifburnerorificeisnotdamaged
 thencheckfordamagedmanifold. Replace
Pilotcannotbeignited Blockedpilotorifice Replace
 Gascocknotinposition
 Pilotgasflowadjustmentscrewmaybeclosed Gascontrolknobmustbeturnedtopilot
  andhelddepressed
  Openandadjust(seeFigure8)
Pilotlightsbutgoesout Defectivethermocouple Replace
 Defectivecontrol Replace
Pilotstayslitbutmainburnerwillnotlight Loosewireorimproperlywired Tightenconnections,checkwiring
 Defectivecontrol diagram
 Blockedburnerorifice Replace
  Cleanorificeorreplace
Failuretoignite Maingasoff Openmanualvalves
 Airingasline Bleedgasline
 Loosewireconnections Tightenwireconnections
 Dirtywireconnections Cleanterminalsandsecureterminals
13. REPLACING THE GAS VALVE UNIT
a. Removethetwogasvalveunitwiresatthegascontrolvalve
labeled“PP.”
b. Unscrewgasvalvefromgaspiping.
c. Reconnectgasvalveandunitwirestoterminals“PP.”Besure
toleavethermostatwireononeterminal.
14. FREQUENCY OF OPERATOR CHECKS
Intermittent Use
Appliancesthatareusedseasonallyshouldbecheckedbefore
shutdownandagainbeforethenextuse.
Dusty,wetorcorrosiveenvironment.Sincetheseenvironments
cancausethegascontroltodeterioratemorerapidly,thesystem
shouldbecheckedmoreoften.
The gas control should be replaced if:
a. Itdoesnotperformproperlyoncheckoutortroubleshooting.
b. Thegascontrolknobishardtoturnorpushdown,oritfails
topopbackupwhenreleased.
SYMPTONS CAUSES SOLUTIONS
Burnerlightoffveryslow Partiallyblockepilotorifice
Pilotoutofadjustment
CleanorReplace
Re-adjustpilot
Burnerlightoffveryslow&color
staysdull
Partiallyblockedburnerorifice Cleanorreplace
Burnerflashback(roaringnoise
duringoperationandceramicgrid
surfacewillbedark)
Lowgaspressure
DamagedBurner
Correctlinepressureorcallyourgassupplier
Replace
Ceramicgridorburnersootingup
(whenneworaftercleaning)
Firstcheckfordamageburnerorifice,if
burnerorificeisnotdamagedthencheckfor
damagedmanifold.
Replaceifdamaged
Pilotcannotbeignited Blockedpilotorifice
Gasvalveknobnotincorrectposition
Pilotgasflowadjustmentscrewmaybeclosed
Cleanorreplace
Gasvalveknobmustbeatpilotandheld
depressed
Openandadjust(seeFigure8)
Pilotlightsbutgoesout Defectivethermocouple
Defectivecontrol
Replace
Replace
Pilotstayslitbutmainburnerwill
notlight
Loosewireorimproperlywired
Defectivecontrol
Blockedburnerorifice
Tightenconnections,checkwiringdiagram
Replace
Cleanorreplace
Failuretoignite Maingasoff
Airingasline
Loosewireconnections
Dirtywireconnections
Openmanualvalvesongasline
Bleedgasline
Tightenwireconnections
Cleanandsecureconnectionterminals
15. HIGH-ALTITUDE OPERATION
Installationofthisapplianceataltitudesabove2,000ft(610m)
shallbeinaccordancewithlocalcodes,orintheabsenceof
localcodes,theNationalFuelGasCode,ANSIZ223.1/NFPA54or
NationalStandardofCanada,NaturalGasandPropaneInstallation
Code,CSAB149.1.