Harman PF-120 - Ash Pan and Firebox Cleaning

Harman® • PF-120 Owner’s Manual_R3 • 2014 -___ • 10/1416
3-90-08120c
D. Ash Removal
Itisrecommendedtoremovetheasheswhenthefurnace
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.
Open Outer Ash Door
LiftthetwolatchesshowninFigure5.1andopentheouter
door as shown in Figure 5.2. If the Distribution Blower is
runningwhentheouterdoorisopen,someairwillescape
aroundthedooropening.Thisisnotaproblem,howeverany
dustthatiscausedintheashremovalprocesscanpotentially
beblownaround.
Open Inner Ash Door
LiftlatchesshowninFigure5.2andopentheinnerdooras
showninFigure5.3.
NOTE: Keep hopper lid and inner door closed during
operation and maintain all seals in good condition.
Remove Ash Pan
Alwayswearglovestoremoveashpan.Grabtheashpan
bythehandleandpullitoutofthefurnace.Liftthehandle
anduseitforcarryingtheashpan. Close the inner door
before disposing of the ashes.
Disposal of Ashes
Ashes shouldbe placed in a metal container with a tight
ttinglid.Theclosedcontainerofashesshouldbe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.
Soot and Fly-ash: Formation and Need for Removal
Theproductsofcombustionwillcontainsmallparticlesof
y-ash.They-ashwillcollectintheexhaustventingsystem
andrestricttheowoftheuegases.Incompletecombustion,
suchas,duringstartup,shutdown,orincorrectoperationof
thefurnace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todetermineif
cleaningisnecessary.
Inner Door Latches
Outer Door Latches
Figure 5.1
Figure 5.2
Figure 5.3