Harman HydroFlex 60 Pellet Boiler - Ash Removal; Soot and Flyash: Formation and Need for Removal

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3-90-233R24_11/13
Maintenance
Soot and Flyash: Formation and Need for Removal
Theproductsofcombustionwillcontainsmall particlesof
yash.Theyashwillcollectintheexhaustventingsystem
andrestricttheowoftheuegases.Incompletecombustion,
such as occurs duringstartup, shutdown, or incorrect
operationoftheboilerwillleadtosomesootformationwhich
willcollectintheexhaustventingsystem.Theexhaustventing
systemshouldbeinspectedatleasttwicemonthlyuntilan
appropriatecleaningscheduleisdetermined.
Fig. 21
Inner Refractory Lining
Thereboxandheatexchangertubeaccessareasarelined
with high-temperature,brous ceramic insulationpanels
(muchlikespacecrafttiles).Thesurfaceofthesepanelsis
hardenedtoresistnormalwearfrombrushingwithanon-
metalbrush.Thepanelsarenotdesignedtobecleanedwith
thescraperorothersharpobjects.Cautionmustbetaken
whencleaningthesepanelsbecausedamagetothemisnot
coveredbythewarranty.Theashpanslidesintotheunitona
railsystem.Thiskeepstheashpanfromcontactingthesides
andoorrefractorypanels.Cautionmustbetakentoensure
thereisnothingontheoorsurfacepriortoinsertingtheashpan.
Ash Removal
It is recommended toremove the ashes when theboiler
isnotinoperation.Thislessensthechancesofcomingin
contactwithhotsurfaces.Ashescanberemovedwhilein
operationbut,extracaremustbetakenincludingwearing
protectivegloves.
Open The Firebox Door
SwingthelatchdownwardandopenthedoorasshowninFig.21.
NOTE: Keep hopper lid, and rebox door closed during
operation and maintain all seals in good condition. Air leaks
will cause low draft conditions, which will result in feeder
shutdown.
Disposal of Ashes:
Ashesshouldbeplacedinasteelcontainerwithatighttting
lid.Theclosedcontainerofashesshouldbemovedoutdoors
immediatelyandplacedonanon-combustibleoororonthe
ground,wellawayfromallcombustiblematerials,pending
naldisposal.Ifashesaredisposedofbyburialinsoilor
otherwiselocallydispersed,theyshouldberetainedinthe
closed container until all cinders havethoroughly cooled.
Otherwasteshallnotbeplacedinthiscontainer.
FireboxRefractory
Linings