Safety Features - Harman Stove Company PC 45 Installation & Operating Manual

Fig. 38: Corn or Pellet Burnpot Setup
Fig. 39: Pellet "only" Burnpot Setup)
Hopper Lid
Position Switch
maintenance - burn Pot
The low draft sensor which is a vacuum differential switch, monitors the negative
pressure (draft) in the firebox through a port on the rear of the feeder. Poor draft can
be caused by blockage in the exhaust, excessive build-up on the combustion blower
fan blades, a failed combustion blower, or a door or other opening to the firebox not
sealed properly.
The hopper lid position switch, located in the right rear corner of the hopper opening,
senses the positioning of the hopper lid. The circuit board is monitoring the position
of these switches. If either of these switches were to open, power to the igniter and
the feed motor are interrupted. The indicator lights for these components may be
illuminated even though power is not flowing to the components. Be sure all doors,
including the hopper lid, are securely closed when operating the appliance.
burn Pot Cleaning and maintenance
1. Be sure the stove power is turned off.
2. Lift up and remove the front plate lock and front plate.
Set aside the front plate.
3. Remove the auger extension by pulling toward you,
then set aside (corn burnpot only)
4. Remove burnpot grate and set aside.
5. Clean all fines and debris that has accumulated.
6. Install the "cleaned" burnpot grate making sure the 2
holes line up with the 2 tabs in the burnpot housing.
7. Now install the spare "clean" auger extension into the
auger shaft. Make sure there isn't any corn or debris in
the shaft opening. This will prevent the auger extension
from being fully inserted into the shaft.
8. Align the auger extension through the hole in the
"clean" front plate and place front plate against the
burnpot grate and housing.
9. Install the front plate lock.
NOTE: After cleaning of these parts, inspect for
excessive wear and replace as needed.
Cleaning of burnpot Parts
Cleaning can be performed in 2 basic ways:
1. Because the corn slag buildup will absorb moisture
from the air when cool, the parts can just be left exposed
for several days and the slag buildup will crumble off
of the parts.
2. To accelerate this process, the parts can be soaked
in water for approximately 30 minutes (depending on
the amount of buildup, they could be cleaned in less
time).
NOTE: Cleaning of these parts is not necessary until
you see that there is a noticeable decrease in the quality
of the flame in the burnpot. Example: Unburned fuel
being pushed over the burnpot.

Safety Features

PC 45 Corn/Pellet Stove 23