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NOTE: The high water temperature can be
set only between 150ºF and 195ºF. It is not
recommended to set the temperature below
185°F. If set below 185˚F, the Dual Fuel system
may start unnecessarily when in the Clean Start
or Backup mode.
1. Press the SET button on the temperature controller.
"SP" will appear in the display.
2. Press SET again to display the current setpoint
temperature. The factory preset is 185˚F.
3. Press the UP or DOWN button until the desired value
is displayed. This setting can only be set between
150˚F and 195˚F.
4. Press SET to save the setting. "SP" will appear.
5. To exit the programming mode, either press the SET
and DOWN buttons at the same time or wait one
minute and the controller will automatically exit.
MODES OF OPERATION
Fig. 40
Pallet Burner outdoor furnaces are equipped with a four-
position switch (located to the left of the side light on the
outdoor furnace side panel) for selecting the operational
mode of the outdoor furnace. The switch positions are
WOOD, CLEAN START, DUAL FUEL BACKUP and
FUEL OIL/LP/NG PELLETS/CORN.
NOTE: The four-position switch must stay in
the WOOD position until the power burner is
installed. When a Bio-Advantage
is used, the selector switch must stay in the
PELLETS/CORN position.
A safety interlock switch is built into the firebox door
so that if the firebox door is opened when the burner is
operating, the burner will immediately shut down.
Wood
In Wood mode, the outdoor furnace operates burning
wood only in the firebox. The fire must be maintained in
the firebox in order for the outdoor furnace to heat. On
a call for heat, the damper opens and the optional draft
inducer fan (if installed) turns on. Maintain adequate
coals in the firebox for restarting the fire when loading
the outdoor furnace with wood.
Section 2 - Operating Instructions
Clean Start™
The Clean Start mode operates the auxiliary burner at
the beginning of the burn cycle to provide an immediate
high-temperature combustion, helping to reduce visible
emissions and creating a secondary combustion of
unburned gases. The amount of time the auxiliary
burner operates may be preset by the operator. The timer
(located within the side panel) should be set between
5 and 7 minutes. The timer may be set for a longer
duration (up to 15 minutes) if the wood is less seasoned
than desired. The Clean Start mode also provides Dual
Fuel backup if the wood load is depleted.
Dual Fuel Backup
In the Dual Fuel Backup mode, the outdoor furnace will
operate by burning wood in the firebox. However, if
there is a call for heat and the wood load is depleted,
the outdoor furnace will activate the auxiliary burner
until the firebox is reloaded with wood to sufficiently
maintain heat. Dual Fuel Backup mode will engage
when the water temperature in the furnace drops to
145˚F and will shut off once the water temperature
reaches 160˚F.
Fuel Oil/LP/NG Pellets/Corn
In this mode, the outdoor furnace will operate the
auxiliary burner (or Bio-Advantage) to burn fuel only.
Operating temperatures are set with the digital controller.
OPERATING OPTIONAL BURNER
The burner manufacturer's installation and operation
manual is included with each type of burner supplied
by Central Boiler. For specific operating instructions
not included in this manual, refer to those instructions.
All burner service work must be provided by a qualified
serviceman according to the specifications and schedule
in the burner manual.
Use only the fuel designated on the burner rating plate
and stated in the gas or oil burner Operator's Manual.
Also, if restarting after an ignition failure, purge
the firebox of any excess fuel (or LP or NG) prior to
attempting to restart the burner. If using fuel oil, use
®
power burner
heating oil (either #1 or #2) of the proper viscosity for
the coldest anticipated operating temperatures.
DO NOT USE GASOLINE, CRANKCASE OIL
OR ANY OIL CONTAINING GASOLINE. DO NOT
ATTEMPT TO START THE BURNER WHEN
EXCESS OIL HAS ACCUMULATED OR WHEN
THE BURNER IS HOT.
WARNING
35
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