PB-1525 Wood Pellet Burner System: Installation and Operation Manual
Rev 1.0, OCTOBER 2011
Page 27 of 67
System Operational Description
The PB-1525 has eight (8) distinct and separate states of operation. These
states are detailed in the illustrations and descriptions below.
System States
Idle
The Idle state is “Standby Mode” for the system. In the Idle state, the unit is
monitoring the thermostat to start the ignition sequence. Figure 3.1 below
illustrates the controller in the Idle state.
Idle 0
0 65°F _
Starts: 1
Disa Feed
Figure 3.1: PB-1525 Burner Controller in the Idle State
As depicted above, the System State is “Idle”. The stack temperature
reading is at 65 degrees F. The Flame Sensor value is “0”. The State
Counter is at “0” during idle mode. This counter will count down (in
seconds) until the next change of state during operations; however, in the
Idle state the counter will remain at “0”. The Blower speed indicator is a
bar graph that will fill upwards for Low, Medium and High speeds. In the
Idle state the Blower is Off and the indicator indicates this through a single
thin line. The Titles “Disa” and “Feed” refer to the corresponding button
functions. Pressing the “Feed” button will run the auger. Pressing and
holding the “Disa” button for five seconds will disable the system and the
button will change to “Ena” (See the system state section on “Disabled”
below).
Feed Start
The Feed Start state is the beginning of the ignition cycle. In the Feed
Start state, the unit is has sensed a call from the thermostat to start the
Buttons
Functions
Blower Speed
Indicator
State Counter
System State
Stack Temp
Flame Sensor
Value
Cycle Meter
