Harman Accentra Pellet Insert - Feeder Chamber

31
3-90-00674R28_12/13
Maintenance - Cleaning
This chamber may get a buildup of nes from the feeder
mechanismmovement.This areashouldbecheckedand
cleanedatleastonceayear.
To remove the feeder cover:
• Removethe5/16"wingnut.
• Slidethecoveroffofthethreadedstud.
• Inspectandcleantheinnerchamberifnecessary.See
Fig.65.
• Reinstallthecovermakingcertainitiscenteredonthe
feederbodyandtightenastightlyasyoucanbyhand.
Thecombustionblowerismadetoberemovedeasilyfor
inspectionandcleaning.SeeFig.67.
The combustion blower is mounted on a precision cut
gasketlessmountingplate.Thisplateisheldintoplace
with(3)thumbscrews.SeeFig.67.
To remove the combustion blower:
• Turnthethumbscrewscounterclockwiseapproximately5
turns.Rotatetheentireassemblycounterclockwiseuntil
thepointsoftheretainingslotsarevisible.
• Removetheblowerassemblywiththefanbladebypulling
itdirectlyawayfromtheblowerhousing.
• Thecordonthemotorislongenoughtoallowthemotor
tobesetdownontheblackplasticfancover.Thisallows
foreasyaccesstoinspectandcleanthearea.SeeFig.
66.
• Withtheblowerassemblyout,inspectionshouldbedone
onthesurfacesoftheblowerassemblyandthehousing
opening where they meet. These surfaces MUST be
cleanandfreefromdirt,grit,yash,sootornicksinthe
metal.Thisgasketlesssealreliesonanextremelyclose
tolerance. Therefore, anything other than a clean joint
maycauseexhaustgasesand/oryashtoescape.
• Theassemblycanonlybereinstalledinoneposition:with
themotorwindingintheupwardlocation.SeeFig.67.The
mountingplatewillnotallowforanyotherposition.
• Alwaysmakesurethattheassemblyisfullyseatedand
the(3)thumbscrewsaretightenedbeforeoperatingthe
unit.
Feeder Chamber
Pellet Metering Slide Plate
Possible pellet nes
buildup area.
Fig. 65
5/16" Wing Nut
ESP
Feeder rear chamber/
clean out cover
Fig. 64
Mating
Surface
Close Tolerance
Fig. 66
Close Tolerance
Fig. 67
Motor Winding in
upward position