Thermostat contacts are open (it is satisfied).
The MODE light starts flashing.
The HEAT LEVEL and Fans will drop down to the LOW setting until the thermostat contacts close again.
*The LOW heat setting can be adjusted for different fuel qualities The stove will come back to the
previous HEAT LEVEL setting when the thermostat contacts close again.
Operator has no control over the Heat output, but can control the Low Feed Trim and Convection Blower
ON/OFF.
dHC 4100 sHuT down - HigH/low mode, wiTH THermosTaT or wall swiTCH:
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.
dHC 4100 sTarT-uP sequenCe (15 minuTes) - auTo/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 Auger Light will flash with each pulse of the auger (the auger feed rate is pre-programmed during
start-up).
3. The combustion blower comes on at full speed.
4. 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 and then will have to press 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.
5. 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.
6. Fifteen minutes after pushing the start button, the Mode light will change to solid. This signals that the
unit is at operating temperature and control is returned to the user.
7. The Auger Light will continue to flash to the corresponding Heat Level setting. The Heat Level Indicator
will show the Heat Level that the stove will run at after start-up and can be adjusted but the change
will not take affect until the start -up has finished.
8. The convection blower (room air blower) will turn on.
Note: If the thermostat contacts are opened (it is satisfied) during start-up the circuit board and all
motors turn OFF and MODE light remains flashing.
Thermostat contacts are open (it is satisfied) when the ON/OFF button is pressed.
The circuit board will not turn on.
26
Stove Operation - Circuit Board
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