Furnace Installation and Owners Manual
16
LDJ620_E01_R03_2006.03
Models LDJ620-9 and LDJ620-10
Clinker Buildup
The A-MAIZE-ING HEAT
®
furnace feeds the
corn/pellets into the bottom of the burner,
thereby creating conditions for efficient fuel
consumption. The residual ash (clinkers) are
then spilled over the top of the burner ring,
falling into the ash pan below. This process
cleans the burner chamber.
IMPORTANT: If the furnace is installed in an
application that causes the furnace to run
almost continously, or if incorrect types of corn/
pellets are burned, large clinkers can form.
These clinkers can stick to burner pot and
eventually extinquish the fire. They must be
loosened and removed with the clinker tool.
NOTE: If your furnace has been installed in an
application where it runs almost continuously,
and you are experiencing problems, contact LDJ
Manufacturing, Inc. for assistance.
Power Failure Instructions
NOTE: If a power failure does not last longer
than 20 to 30 minutes, the furnace will cycle
back to operation without starting the fire. If the
power failure lasts an extended period of time,
the clinkers will have to be cleaned out of the
burner pot and the fire restarted.
IMPORTANT: When ashes are removed from
the ash pan, they should be placed in a metal
container with a tight fitting lid. The closed
container of ashes should be placed on a non-
combustible floor or on the ground, well away
from all combustible materials pending final
disposal. If the ashes are disposed of by burying
in soil or otherwise dispensed, they should be
retained in the closed container until all clinkers
have thoroughly cooled.
Summary of Settings and Operation
HIGH FIRE Adjustment
Adjustment of the combustion gate (1) on the side
of the combustion blower controls fuel air mixture
during high fire only. Only adjust this opening when
the combustion blower is running. Its adjustment
should yield an intense fire that consumes the fuel
at the same rate it is augered in.
LOW FIRE Adjustment
The rate of burn during low fire operation is
controlled by the amount of chimney draft.
Chimney draft must remain below 0.06 water
column inches and be consistant (refer to “Draft
Adjustment” on page 15).
To maintain the fire, the low fire timer will
activate the fuel feed system for a short period
of time followed by a longer period of no fan or
auger activity (LOW FIRE). Adjusting the on and
off cycle time controls the amount of fuel going
into the burner pot during low fire operation.
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