20
• Open the hopper lid and fill the hopper with fuel.
• See Specifications (page 5) for fuel recommendations.
• The UBB is configured to burn corn from the factory. To burn wood pellets, simply open the left side panel and
locate the Control Board Trim Pot Panel. Rotate the knob labeled “Fuel Mix” from A to B. See Figure 23.
Use of a surge protector is recommended but not required for UBB operation.
OPERATING INSTRUCTIONS
Fuel Mix
SPA R E
EXHAUSTFEED
CONVECTION
FAN
ASH DUMP
FREQUENCY
FUEL
MIX
A
B
0
10
20
-1
0
-20
0
10
20
-10
-20
1x
1/2x
4x
BIX CHECK
RS-232
THERMOSTAT
CONNECTION
2052009 REV C
16x
30
-30
-30
30
8x
2x
1/4x
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