Once the flame probe signal is detected by the burner controller module (BCM), it waits
The lower valve opens first. Upon full opening, its’ internal switch closes, enabling the second motorized valve to open and full flame to be achieved.
If flame failure occurs within a
Once main flame is established, the burner will remain in the full fire mode until the drying set point temperature has been reached. At this point, the dryer computer will cycle the top motorized gas valve to the closed the position. The “OFF” mode will be maintained until the dryer’s temperature falls below the drying set point temperature. The motorized valve will then be returned to the full fire position. With voltage applied to the motorized valve, it moves to the full fire position. “OFF” is achieved when no voltage is applied to the motorized valve.
7)Gas Burner
a)New gas lines are filled with air and must be purged before the burner will light. To do this close the upper manual
b)Connect a pressure gauge or water tube to the pilot gas pressure tap. Start the dryer;
Follow the ignition process by referring to the “Sequence of Operation” section of this manual.
c)When the pilot flame is ignited, the pilot gas pressure should measure
d)Once the pilot has been properly set, remove the pressure gauge from the pilot line connect a differential pressure gauge between the main gas pressure tap (HI port) and the air pressure tap (LO port) on the side of the gas burner box. The lines connecting the gauge to these taps must be long enough to allow the gauge to sit outside of the dryer so that the burner section access door can be closed when the dryer runs. Running the dryer with these doors open will give an incorrect air pressure reading.
e)Once this differential gauge is installed, open the main gas
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