Harman Stove Company PB 105 - Manual (Page 29)

29 3-90-07205R19_05/13
8. Turn the MIN. TeMP. dial on the control board to the
desired Minimum temperature. This will start the lighting
process if the temperature at the aquastat sensor is
approximately 5° F. less than the set temperature on
the MAX TEMP. dial.
This is more than just an automatic ignition pellet
boiler. The automatic system will allow the fire size to
be adjusted to match the heating needs and even put
the fire out if necessary. If heat is needed after the fire
is out, the boiler will automatically re-ignite and adjust
the fire size to match the heating need.
9.
Fill hopper with pellets and remove ashes as
required.
Type of Fuel
Use pelletized wood only. The lower the ash content of
the pellets the less cleaning that will be needed of the
heat exchanger surfaces. The cleaner these surfaces
are kept, the more efficient the boiler will be.
NOTE: Do not burn garbage, gasoline, naphtha,
engine oil, or other inappropriate materials in this
unit.
Store pellets in the manufacturer’s wrapping until
needed to prevent pellets from absorbing moisture.
do not store fuel within the appliance installation
clearances, or within the space required for fueling,
ash removal, and other routine maintenance
operations.
lighting A Fire Manually
Lighting the fire manually will not be necessary unless
the igniter system fails.
Follow steps 1 through 5 of the instructions for
automatic lighting.
6. Flip the Igniter Switch down into the “MANUAL-
LIGHT” position. See Fig. 12.
Operation
7. Open hopper swing plate as shown in Fig. 13 (See
“NOTe” on page 26.)
8. Fill burnpot with pellets as shown. See Fig. 14.
Only fill level with the front edge.
( ------- dO NOT OVeRFIll ------- )
9. Have matches or other ignition source ready.
10. Turn Mode Selector to desired MIN TEMP setting.
This will start the combustion blower and allow the
ESP to control the fire in relation to the MAX TEMP
Dial setting. (The MAX TEMP dial setting must always
be set above the MIN TEMP setting) Once the fire is
well established the MAX TEMP dial can remain on any
temperature setting desired.
NOTE: When the Switch is set to Manual ignite position
the boiler will function as in auto ignite except the fire
will not be allowed to go out. It will only be allowed to go
to a minimum burn rate between the times the aquastat
is calling for heat. This rate is about 1.1 pound of fuel
per hour. If used in the Manual ignite mode, be sure
there is an overheat dump zone in place. Note that
if the dump zone does not provide sufficient cooling,
and the water temperature continues rising, the feed
motor will be forced to shut off. Because the unit is in
Manual Ignite mode, it will not re-ignite when the water
temperature cools below the control settings.
Fig. 14
Fig. 13
Fig. 12