Airstream PNEG-343 service manual Dryer Start UP, Staged Batch Operation

Models: PNEG-343

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DRYER START UP

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,

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.

STAGED BATCH

OPERATION

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.

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-

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Airstream PNEG-343 service manual Dryer Start UP, Staged Batch Operation