Airstream PNEG-343 - Manual (Page 21)

21
DRYER START UP
STAGED BATCH
OPERATION
6. Turn the fan switch to auto. The
fan will start, and the switch will
light up when airflow is detected.
7. Start the burner by turning the
heater switch to auto. After purg-
ing for approximately 10 sec-
onds the burner will fire, and the
heater switch will light up indi-
cating that the flame sensing
circuit is sensing burner flame.
For information concerning
burner adjustment see the pre-
start section of this manual.
8. To properly set the correct dry,
cool and unload time for various
moisture content grains. See the
charts on page 23 and 24.
9. If the dryer is being operated in
all heat, turn the fan switch to
on. In this position the fan will
run continuously during the dry,
cool and unload stages of the
staged batch operation. If the
dryer is being operated in the
dry and cool mode, the preferred
position for the fan switch is the
on position, so the fan will run con-
tinuously. If desired, the fan can
be turned off during the unload
cycle of the dry-cool-unload se-
quence by turning the fan switch
to auto.
10. If the dryer is being operated in
all heat, turn the heater switch
to on. The burner will operate
whenever the fan is operating.
If the dryer is being used in dry
and cool, turn the heater switch
to auto and the burner will auto-
burner and all augers will stop
immediately.
Note: The Electronic Monitor-
ing Control System can be used to
automatically start the dryer. Place
all the control panel selector
switches in the proper position,
and open the electric fuel shut off
valve before pressing the dryer
power start button. The controller
will start all dryer components in
their proper order.
1. Turn the control power switch to on.
2. Make sure the drying mode switch
is turned to staged batch.
3. After the date and time appear,
press the reset button.
4. Open the main fuel supply valve
on the tank if using LP gas, or
the valve in 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.
5. The dryer should already be
filled with grain. Turn the load
auger switch to auto. In both the
auto and manual position, the
grain level switch will automati-
cally keep the dryer full of grain.
In the auto position the dryer will
shut down after the preset time
period on the out of grain timer,
or if the grain flow to the dryer is
interrupted.
11. To move grain through the dryer
turn the moisture control switch
to on. The switch will light up.
Note: When the unload switch
is in the 2 speed position, and the
moisture control thermostat switch
is off, the speed of the metering rolls
can be manually adjusted by turn-
ing the high speed metering roll dial.
Turning the dial clockwise will in-
crease the grain discharge rate,
counterclockwise will decrease the
discharge rate. (The numbers on the
speed dials indicate the percentage
of full speed.)
12. At the end of the startup period,
start the flow of grain out of the
dryer. Turn the unload switch to
the two speed position. The bot-
tom auger and metering roll will
immediately start, and the un-
load switch will light. If additional
grain handling equipment is uti-
lizing the unload auxiliary over
load supplied with the dryer,
this equipment will also imme-
diately start.
13. To shut the dryer down,close
the fuel supply valve at the fuel
tank or fuel source. Let the dryer
run until the fuel supply lines
drain, and the dryer automati-
cally shuts down due to loss of
flame. Close the fuel valve at the
dryer. Press the dryer power
stop button. Turn off the dryer's
safety disconnect handle. Turn off
the main power supply to the dryer.
14. In case of emergency push the
dryer stop button. The fan,