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USSC 13
Heat
Range
Room
Fan
Draft
Fan
Aux.
Auto
Manual
CONTROL PANEL
Turning the furnace OFF/ON, as well as adjustments for the fuel feed rate
and room fan speed are performed by pressing the appropriate button(s)
on the control panel which is located on the lower left-hand side of your
American Harvest furnace.
This unit can be changed between an automatic operation or a manual
operation. The controller comes default in the automatic mode.
Pressing the “ON” button on the control panel will begin the start-up
sequence for the furnace. Fuel will begin to feed through the auger feed
system after 3 minutes. Pressing and holding the “ON” button will rotate
the auger continuosly until button is released, which feeds additional fuel.
Pressing the “OFF” button on the control panel will cause the furnace to
enter its shut-down sequence. The fuel feed system will stop pulling fuel
from the hopper and, once the fire goes out and the furnace cools down,
the fans will stop running.
Pressing the “Heat Range” arrows, up or down, will adjust the amount of
fuel being delivered to the burnpot.
The draft fan (exhaust) will come on as soon as the “ON” button is pressed.
The fan will automatically adjust its speed in accordance to the heat range
setting. However, this speed can be manually operated by pressing the
“Draft Fan” arrows up or down. “Draft Fan” when pressed, the display will
show “Df-A”, which is automatic. Press the arrows again to adjust fan
speed. When the furnace is in the manual mode, the optional thermostat
will not properly control the unit. When adjusting the Draft Fan setting, try
only 1 setting above or below the heat setting.
The room fan(s) will come on once the unit has reached operating temperature. The room fans will automatically adjust
their speed in accordance with the heat range setting. By pressing the “Room Fan” buttons, the display will show “Rf-
A” which is automatic or how many fans are running.
The “Aux” button is for Agitator operation. When the unit is “OFF”, pressing the “Aux” arrows will rotate the agitator for
easy removal for cleaning. The agitator, when in Automatic mode, will operate at set intervals. However, these can be
changed by pressing the arrows on the “Aux” button. The agitator can be adjusted from 0 to 9, setting “0” is off and
setting “9” is high.
The “Auger Delay” button can be used to pause rotation of the Auger and Agitator for approx. 1 minute. This can be
cancelled by pressing the “ON” button.
The “Mode” button is used to switch between manual and automatic mode. When in auto mode, the fans, auger, and
agitator will operate at preset intervals unless changed manually using the buttons mentioned above. When in manual
mode, the draft fan (exhuast) will operate at full speed (100%), so the air must be controlled with the damper just below
the viewing door.
During normal operation, the unit is constantly monitored for problems. In the event of an error condition, the unit will
stop and an error will be displayed. See the list of error codes found at the end of this manual.
Operation