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Power Light
Indicates power to the
control board. (Ready)
Status Light
Will be lit anytime the unit is
in operation.
Combustion Blower Light
Indicates Power to
combustion blower
Feed Motor Light Indicates
Power to the feed motor.
Max Temp dial
The “Max Temp Dial” is used to set the desired maximum operating temperature
of the boiler.
7 Blinks: Boiler water overheat saftey shut down. This
requires a manual reset by cycling the main power off for a
few seconds and re-connect.
Explanation and Importance of the OverHeat Safety Zone
When the unit is operating at High burn, and all demand from
the heating system stops, the control will reduce the feed
rate and shut down completely as necessary. This may take
several minutes, and the remaining heat may cause the water
temperature to continue to rise. When the water temperature
gets too high, the OVERHEAT SAFETY ZONE light on the
control will illuminate and the relay R1 is energized. This will
close contacts #5 and #3 (Fan Contacts on the interconnection
Page 20), and will also energize the controlled circulator
outlet, for the hot water dump zone.
When using a hot water coil in an air duct system, if you
do not want the living space heated beyond the thermostat
setting during an over heat dump, an alternate dump zone
will need to be installed and some internal control re-wiring
will be necessary.
Feed adjuster
Sets the maximum feed rate
Test
Combustion blower, feed motor
and safety dump zone are fully
energized for the rst minute.
Then, the combustion blower
will stay on low.
Overheat Saftey Zone Light
Indicates that the boiler water
temperature has reached 210
Degrees F.
Igniter Light
Indicates power to the igniter
Lighting Mode Selector
Switched between Auto and
Manual lighting.
Mode Selector/Min Temp
Dial
Used to turn the boiler on
or off and set the desired
minimum operating
temperautre of the boiler.
Status light error messages:
3 Blinks: Indicates that the ESP (Exhaust Sensing Probe)
has gone out of range too many times. If the unit is operating
correctly, perform a manual reset by cycling the main power
off at the circuit breaker for a few seconds. If the 3 blinks
persist, contact your service technician.
4 Blinks: Indicates mis-communication with the aquastat, or
the aquastat is not attached properly. May require a manual
reset (turn off power at circuit breaker). Note that in some
optional control methods, this status will occur during normal
operation and reset automatically.
5 Blinks: (In Auto Light Mode Only) Indicates that the igniter
has failed to light the re after 40 Minutes. To reset - Turn
the Mode Selector/Min. Temp. to OFF and then back to the
desired temperature.
6 Blinks: Indicates that the control has calculated poor or
incomplete combustion occurring for 25 or more minutes.
A six blink status may occur if the stove is allowed to run
out of pellets. To reset, turn Mode Selector/Min Temp dial
to “OFF” then back on to the desired temperature. If the unit
was not out of pellets, see Troubleshooting section, Page 38,
for more details.
Diagnostic Port
For maintenance only.
Requires special DDM monitor
supplied to trained technicians
exclusively.