Harman HydroFlex 60 Pellet Boiler - Maintenance; Burnpot Cleaning; Cleaning the Burnpot Air Chamber

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3-90-233R24_11/13
Burnpot Cleaning:
Theburnpotshouldbecleanednolessthanonceaweek.
Forbestoperationtheburnpotshouldbecleanedeverytime
thehopperislledwithpellets.Theredoesnothavetobe
outtoscrapetheburnpotalthoughitisrecommendedthe
boilerbeonminimumburnatthetimeofcleaning.
CAUTION: Wear Gloves To Prevent Burns.
Usethe at end of the scraper provided to scrape down
overtheholedsurfaceoftheburnpotgrate.SeeFig.17.Itis
notnecessarytocleanoutthescrapingsfromthiscleaning
becausetheywillbepushedoutastheaugeroperates.
Note: Make a special effort to scrape the bottom inside
corners of the burnpot where the auger tube enters the
burnpot. Carbon deposits can build up over time in this area
that may cause a restriction to the ow of pellets into the
burnpot.
Note: The end of the scraper may need sharpened
occasionally, for best results.
Whilescrapingtheburnpot,youcanalsousethescraper
tooltotaponeachofthevisibleheatexchangespirals.This
willhelptomaintainmaximumefciencybetweencleanings.
Cleaning the Burnpot Air Chamber:
Thisareaonlyneedstobecleanedtwiceaheating
season,unlessexcessivebuildupisnoticedduring
scheduledcleanings.
Thereisacoveronthefrontoftheburnpottogainaccessto
theairchamber.Thecoverisheldintoplacebytwothumb
screws.Loosenthethumbscrewsandremovethecover.
SeeFig.19.Theairchambercanbecleanedofanyashthat
hasfallenthroughtheholesduringoperationandcleaning.
NOTE: ALWAYS REMEMBER TO CLOSE THE CLEANOUT
COVER AFTER CLEANING.
Feeder Chamber (Fig. 20):
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:
• Loosenthe5/16”wingnut.
• Slidethecoveroffofthethreadedstudandliftupward.
• Inspectandcleantheinnerchamberasnecessary.SeeFig.
20.
• Thereisaremovableplateinthisareathatdeectsnes
intotheauger.Toremovethisplate,rollitoutunderthe
pusherarm.
• Reinstallthecovermakingcertainitiscenteredonthe
feederbodyandhand-tightenthewingnut.
Maintenance
Burnpot cleanout
cover
Fig. 19
Fig. 20
Fines area
Feeder cover
Fig. 17
Scrapethe
burnpottoremove
anycarbon
deposits which
mayhaveformed.
Scrapingcan
bedonewhile
theboileris
in operation,
accessedthrough
thereboxdoor
opening.Wear
glovestoprotect
fromburns.