Stove Operation - Circuit Board
dHC 2000 sHuT down - HigH/low mode, wiTH THermosTaT or wall swiTCH:
Thermostat contacts are closed (it is calling for heat).
1. Push ON/OFF button to turn stove off.
2. All the lights will turn off
3. The auger will stop feeding
4. The combustion blower goes to full speed until the exhaust temperature sensor opens, stopping all
motors.
Thermostat contacts are open (it is satisfied).
1. Push ON/OFF button to turn stove off.
2. The ON/OFF light continues to flash.
3. Auger stops feeding.
4. Combustion blower goes to full speed until exhaust sensor opens and blower stops.
5. The ON/OFF light will continue to flash (unless power is disconnected).
dHC 2000 sTarT-uP sequenCe (15 minuTes) - on/oFF mode, wiTH THermosTaT or wall swiTCH:
Thermostat contacts closed (it is calling for heat) at time of start-up.
1. Push the ON/OFF button to start. The stove may take up to 30 seconds to establish rebox vacuum.
2. The ON/OFF light turns on solid.
3. The ON/OFF light starts to flash after the vacuum sensor has closed (approximately 15 seconds).
• The Auger Light will flash with each pulse of the auger (the auger feed rate is pre-programmed during
start-up). The auger light flashes:
- 3 seconds ON
- 8 seconds OFF
5. The combustion blower comes on at full speed.
6 a. The ignitor comes on.
b. The convection blower stays off.
c. The heat level indicator will show the heat level that the stove will run at after start-up.
d. The operator has no control over the start-up sequence. The operator can press and hold the
manual feed button to run the auger continuously for 60 seconds then must be pressed again for
another 60 seconds. The operator can also pre-set the heat output setting for operation. When the
unit reaches operating temperature the heat output will go to that setting.
7 a. The unit should light after 5 to 12 minutes.
b. Once the 120°F (49°C) exhaust temperature sensor closes, the convection blower will come on.
8. Fifteen minutes after pushing the start button, the ON/OFF light will change to solid. This signals that
the unit is at operating temperature.
Note: If the thermostat contacts are opened (it is satisfied) during start-up the circuit board and all
motors turn OFF and ON/OFF light remains flashing.
Thermostat contacts are open (it is satisfied) when the ON/OFF button is pressed.
The circuit board will not turn on.
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