Harman PP38+ - Manual (Page 21)

21 PP38+ Pellet Stove 3-90-08422R33_06/13
Maintenance
Exposed blower wheel and
flue opening, NOTE: ESP
probe is visible.
ESP
Probe
Fig. 30
Fig. 31
Fig. 33
Burn pot
Clean-out
plate
Latch "open "with blower
cover partly removed. Burn
pot clean-out is open.
Latch "closed "with blower
cover in place. Burn pot
clean-out is closed.
Blower cover
removed.
Fig. 29 Fig. 28
ESP
Probe
6. Remove the ash pan and properly dispose of the ashes.
7. Remove combustion blower cover by turning the blower
cover latch vertical, see Fig.26. Sliding the cover out of
the slot on the left. This will expose the combustion blower
wheel and flue outlet, Fig.27.
8. Clean the combustion blower wheel with a brush and a
vacuum cleaner. Note: Do not use a household vacuum
to clean the stove. We recommend that you use a shop
vacuum that is equipped with a fine dust filter called a
HEPA filter or a vacuum specially made for ashes and
soot. using a vacuum which is not equipped with a
fine dust filter may clog and disperse fly ash and soot
into the room.
note: the stove Must be coMPletelY out
beFore You vacuuM the stove. live Pellets, iF
sucKed into the vacuuM will light the vacuuM
on Fire and MaY ultiMatelY cause a house Fire.
9. Use a brush to clean the flue, being careful not to damage
the ESP probe, see Fig. 30. The flue goes straight through
into the vent pipe (Fig.27) therefore, the vent pipe can also
be cleaned, to some extent, through the flue outlet.
10. Reinstall the blower cover and close the latch.
11. Slide the ash pan into stove and latch the door.
soot and Fly ash
Formation and need for removal - The products of
combustion will contain small particles of flyash. The flyash
will collect in the exhaust venting system and restrict the
flow of the flue gases. Incomplete combustion, such as
occurs during startup, shutdown, or incorrect operation of
the room heater will lead to some soot formation which will
collect in the exhaust venting system. the exhaust venting
system should be inspected at least once every year to
determine if cleaning is necessary.
Removing fly ash and soot improves efficiency and insures
that the flue venting passageway is clear and unobstructed.
The stove should be cleaned after each ton of pellets (50
bags) and the venting system inspected and cleaned after
each heating season.
B e c a r e f u l n o t t o
damage ESP probe
when cleaning with
brush.