PB-1525 Wood Pellet Burner System: Installation and Operation Manual
Rev 1.0, OCTOBER 2011
Page 28 of 67
ignition sequence. Figure 3.2 below illustrates the controller in the Feed
Start state.
Feed Start 74
T 0 65°F I _
Starts: 1
Disa
Figure 3.2: PB-1525 Burner Controller in the Feed Start State
As depicted above, the System State is in “Feed Start”. Two new
indicators have been displayed, the “T” indicating that the thermostat is
calling for the burner system to fire, and the “I” indicating that the ignitor is
on. When the thermostat is in the Off mode, or open, and when the
ignitor is Off, these indicators are not present. Also notice the “Feed”
button functionality has been removed in this state. This functionality is
only available in the Idle State. Toward the end of the Feed Start State
the system will run the auger to feed the initial start amount of pellets into
the burn chamber. When this occurs an “F” will appear next to the ignitor
indicator indicating that the auger feed motor is running (See Feeding
section for depiction). The system can be forced into the Shutting Down
State by pressing and holding the Disable button for five seconds.
Igniting
The Igniting state indicates the system is in the ignition phase. In the
Igniting state, the unit is monitoring the flame sensor for the presence of
flame thereby signaling ignition of the pellets within the burn chamber.
The controller will cycle the combustion blower on and off and the ignitor
will remain on for the duration of this state. Figure 3.3 below illustrates the
controller in the Igniting state.
Ignitor
Indicator
Thermostat
Indicator
