Airstream PNEG-343 - Manual (Page 18)

18
DRYER START UP
At the beginning of each harvest and
before filling the dryer with grain
make sure to inspect the dryer for
rodent damage, proper belt and
chain tension and missing or dam-
aged safety shields. Test operate
the dryer using the prestart check
procedures located on pages 14-17.
1. Before attempting to operate the
dryer make sure that all safety
shields are in place, all plenum
bottom closure panel doors are
closed, all rear access doors are
closed and all personnel are
clear of the grain dryer and grain
handling machinery.
2. Turn all selector switches on the
control panel to the off position.
3. Turn on the electric power sup-
ply to the dryer, and move the
safety disconnect handle mounted
on the dryer's upper power box
to on.
4. Turn the control power switch to
on. The switch will light up. A
copyright message, model num-
ber, total running time in hours
and minutes, current date and
time will appear. At this point the
controller will lock out all other
dryer functions. Once the date
and time appear, press reset,
and the dryer will perform its
safety circuit checks. If a fault
is found the cause will be dis-
played on the LCD. If all are
found safe the controller will
1. Turn the control power switch to on.
2. After the date and time appear
on screen, press the reset button.
3. Push the dryer power start switch.
4. Open the main fuel supply valve
on the tank if using LP gas, or
open the fuel supply line if us-
ing 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.
5. Turn the drying mode switch to
continuous flow.
CONTINUOUS FLOW
OPERATION
allow the electronic fuel shutoff
valve to be manually opened
(if so equipped), and the dry-
ing mode switch will light up,
indicating that the dryer is ready
to be started.
5. Move the load auger switch to
manual, and push the dryer
power start switch. The top au-
ger will immediately start, and
the load auger switch will light
up. If additional grain handling
equipment is wired to the dryer
it will also start immediately.
6. When the dryer is full of grain the
top auger will stop automatically,
and any grain handling equipment
wired to the dryer will also stop.
6. The dryer should already be
filled with grain. Turn the load
auger switch to the auto posi-
tion. 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.
7. Turn the fan switch to on. The
fan will start, and the switch will light
up when airflow is detected.
8. Start the burner by turning the
heater switch to on. After purg-
ing for approximately 10 sec-
onds the burner will fire, and the
heater switch will light up. This
indicates that the flame sensing
circuit is sensing burner flame. For
information concerning burner
adjustment see the pre start
section of this manual.
9. Operate the heaters to dry grain for
6-7 minutes per point of moisture
to be removed with the plenum tem-
perature set at 180
°
F. Example:
Shelled corn starts with 25% mois-
ture and the final moisture content
is to be 15% (10% removal). Us-
ing the all heat dryeration process,
the estimated drying time is 60 min-
utes (10 x 6).
10. While operating the dryer adjust the
metering roll dials to the recom-
mended settings. See the charts on
page 19 and 20.
CONTINUOUS FLOW AND CONTINUOUS BATCH START UP PROCEDURE