Grain Systems PNEG-1459 - Manual (Page 23)

23 PNEG-1459 L Series Operators
18. Increase the drying temperature to 190 deg. F for single fans or for multiple fan dryers set the heat chambers 30 to 60
degrees apart. Hottest at the top, most cool at the bottom (see Setting Temperatures on page 14).
19. DO NOT TRY TO ADJUST THE DRYER FOR MOISTURE DURING THIS PROCESS OR YOU WILL ESTABLISH
HIGH AND LOW SWINGS IN THE MOISTURE CONTROL. IT WILL TAKE SEVERAL HOURS TO WORK ITSELF
OUT.
20. After the run time in step 17 you are ready to set up the moisture control. Turn the UNLOAD switch to AUTO. Push the
Meter Roll Adjustment knob. When the Modify Meter Roll Setpoints window appears (see image at top of next page) check
that Two Speed is selected. Set the low speed by pushing the Meter Roll Speed Adjustment knob until the Low Speed Indicator
is red and then turn the knob to the desired low speed setting. When low speed is set push the Meter Roll Adjustment knob until
the High Speed Indicator is red then turn knob to the desired high speed setting (IMPORTANT: THE HIGH SPEED SET-
TING MUST BE A HIGHER VALUE THAN THE LOW SPEED). Touch the ACCEPT/EXIT button and return to the Dryer
Operation screen.
21. Now that the UNLOAD AUGER switch is in the AUTO position the moisture control is active. Now touch the M/C button
at the bottom of the Dryer Operation screen. When the Modify Temperature Setpoint window appears set the temperature to
about 105
o F (see image below). Let the dryer run on these settings before trying to adjust moisture or meter roll settings. These
settings will not have your grain moisture adjusted exactly where you want it, but will be a good place to start initially. A little
different moisture at the bottom of the storage bin is not usually a problem as long as you have full floor aeration.
22. After the run time in step 21 you are ready to adjust the moisture control, and the meter roll speeds if required. Each time
you make an adjustment to the moisture control it will take about the time shown in the drying charts to see the results of this
adjustment. For every 5 degrees change in temperature, moisture will change by 1 point.
Check two speed
operation
M/C button
DRYER OPERATION - BASIC MOISTURE CONTROL