Grain Systems PNEG-1459 - Manual (Page 33)

33 PNEG-1459 L Series Operators
switch to advanced and take full control of the dryer. There is a count down screen in the upper right hand of the main display
that shows the time remaining before the advanced moisture control begins.
Dry and Cool-Continuous Flow Operation
This section begins with step 7 and it is assumed that steps 1 through 6 in the start-up procedure described on page 22 have been
completed.
7. Touch the SETUP button at the bottom of the Dryer Operation screen. Once the Hardware Parameter screen is displayed
touch the DRYING MODE button. When the Select Drying Mode window appears touch the CONTINUOUS FLOW button to
select continuous flow drying mode. Then touch the EXIT button and return to the Hardware Parameter screen.
8. Touch the M/C SETUP button. When the Moisture Control Selection window appears select the ADVANCED : REGULA-
TION OF MOISTURE : VARIABLE MR SPEED moisture control option. Now touch the SETUP button. When the Set
Unload Rate Limits window appears set the MAXIMUM Unloading Rate to a value lower than the rated BPH of any auxiliary
unloading equipment connected to the dryer. Next set the MINIMUM Unloading Rate. The minimum unloading rate is used so
that any auxiliary unloading equipment does run empty. By setting a minimum unloading rate the dryer unloading system will
never completely stop. This saves wear and tear on any auxiliary unloading equipment. Once the values have been changed to
the desired rate, touch the ACCEPT/EXIT button.
9. You should now be back in the Moisture Control Selection window. Touch the BIN # / GRAIN TYPE button. When the
Storage Parameters window appears select the type of grain that is to be dried and select the storage bin to be used (the bin
number is for reference only and has nothing to do with the control of moisture). Then touch the EXIT button and return to the
Moisture Control Selection window.
10. The printer can also be enabled or disabled by touching the PRINTER SETUP button. After you have made your selection,
touch the EXIT button to accept and exit.
11. You will also see a button to calibrate the moisture sensors. Do not calibrate the sensors at this time.
12. Now touch the EXIT button at the bottom of the screen and return to the Dryer Operation screen.
The setup is almost complete and you are now ready to begin drying grain using the Advanced moisture control system. The
following steps start the flow of grain through the dryer, and finish setting up the moisture control.
13. Make sure the UNLOAD switch is OFF.
14. Open the main fuel supply valve on the tank if using LP gas, or open the fuel supply line if using natural gas. Turn on the
Maxon electric shut off valve, if so equipped, or open the manual shut off valve to allow fuel flow to the dryer.
15. The dryer should already be filled with grain. Turn the LOAD AUGER switch to the AUTO position. In both the auto and
manual positions, the dryer grain level switch will automatically keep the dryer full of grain. In the auto position the dryer will
shut down after a preset time period on the out of grain timer.
16. Look in the Drying Charts section starting on page 36 for the DRY AND COOL chart settings that correspond to your
model of dryer. You will see the settings for (Initial Moisture) (Moisture Removed) (Approx. Dry Time) (1 Speed) (2 Speed
Low) (2 Speed High) pick the line that has your initial starting moisture. These are the settings we will be referring to during
this start up procedure.
17. Run the bottom fan(s) and heater(s) (to be used for cooling later) for about 20 minutes. This will start the bottom drying so
we can cool it before we begin to discharge grain.
18. Take the remaining number of burners to be started, divide that into the total drying time required, working up, start each
burner that many minutes apart. Run them about 10% longer than the (APPROX. DRYING TIME) total required for the
moisture you are trying to dry.
Example: 10% removal would be about 60 minutes, 15% removal would be about 85 minutes, and 20% removal would
be about 110 minutes. Add 10 minutes to insure that the grain is dry.
19. 20 minutes before the required drying time is finished turn the bottom heater OFF but let the fan run and cool this section
for about . Set the upper plenum thermostats to the decreed temperature (190°-230°F).
20. Turn the UNLOAD to MANUAL and set the METER ROLL SPEED (MANUAL SPEED). Remember that Manual is a
true Manual operation, with no moisture control. The meter rolls will run at the speed that you select using the Meter Roll
Speed Encoder. To do this push on the Meter Roll Adjustment knob. When the Modify Meter Roll Setpoints window appears
turn the Meter Roll Adjustment knob until the speed indicator is set to the speed suggested for 1 SPEED. Grain should begin to
run at this time. Run time for this is about 10% longer than the (APPROX. DRYING TIME) required for the moisture you are
trying to
DRYER OPERATION - ADVANCED MOISTURE CONTROL