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10
© 2021 United States Stove Company
OPERATION INSTRUCTIONS
NEVER OPERATE THIS PRODUCT WHILE UNATTENDED
UNDERSTANDING THE CONTROL BOARD
ON OFF
Auger
Delay
Mode
Auto
Manual
Heat
Range
Room
Fan
Draft
Fan
Aux.
Turning the heater 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.
This unit has two fuel operation modes. It may also be
changed between an automatic operation or a manual
operation in either of the fuel modes.
• Pressing the “ON” button on the control panel will
begin the start-up sequence for the heater. The start-
up sequence diers depending on which fuel operation
mode you select (see Lighting Instructions for details).
Pressing and holding the “ON” button will rotate the
auger continuously until the button is released, which
feeds additional fuel.
• Pressing the “OFF” button on the control panel will
cause the heater 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 heater 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 adjusting the draft fan setting, try only
• One setting above or below the heat setting. It is better
to leave the heater in the automatic mode and adjust
the manual draft slide to control the combustion air.
• The room fan will come on once the unit has reached
operating temperature (approx. 110°F). By pressing
the “Room Fan” buttons, the display will show “RF-
A” which is automatic or “RF-1” through “RF-9” for
manual settings. In auto mode, the room fan’s speed will
automatically be adjusted in accordance with the heat
range setting. By pressing the “Room Fan” up arrow,
you can adjust the fan speed setting up to “RF-9”. The
fan speed can be adjusted to a higher setting than the
heat setting but not lower than the corresponding heat
range.
• The “Aux” button is for Agitator operation. When
the unit is “OFF” and the heater is cool, 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
o 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 “Auger
Delay” is normally used only during the start up cycle
to slow the fuel delivery down during the initial ignition.
• The “Mode” button is used to switch between manual
and automatic mode. When in auto mode, the fan,
auger, and agitator will operate at preset intervals
unless changed manually using the buttons mentioned
above. When in manual mode, the draft fan (exhaust)
will operate at full speed (100%), so the air must be
controlled with the manual slide damper just below the
viewing door. When the heater is in the manual mode,
the optional thermostat will not properly control the
unit.
• 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.
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