Airstream PNEG-343 service manual Staged Batch FAN & Heater Switch Settings

DRYER START UP & OPERATION

matically shut down during the cooling and unloading cycles.

11.Turn the unload switch to the one speed position. The bottom auger and metering rolls will start automatically during the unload cycle of the dry-cool-un- load mode, along with any grain handling equipment that is wired to the dryer. The speed at which themeteringrollsoperateduringthe unload cycle is adjusted by using the high speed metering roll knob. Turning the dial clockwise will in- creasethegraindischargerate,and counterclockwise will decrease the discharge rate.

12.To control the length of the dry cycle using only the dry time

setting programmed into the system, turn the moisture con- trol setting to off. To use the au- tomatic moisture control so that the dry time is determined, not only by the dry time setting, but also by the moisture content of the drying grain, turn the mois- ture control switch to on, and set dial to a beginning setting of 135°F.

13.To start the drying operation push the dryer power start but- ton. The controller will start all the dryer components in their proper order. If any of the se- lected switches are improperly positioned for staged batch dry ing, the display will indicate the proper switch position, and will not allow the dryer to operate until

the position of the switch is cor- rected.

14.To shutdown the dryer, close the fuel supply valve at the fuel tank or fuel source. If the burners are operating, let the dryer run out of fuel causing an automatic shutdown due to a loss of flame. Close the fuel valve at the dryer, and press the dryer power stop button. Turn off the dryer's main circuit breaker located on the front of the power panel. Turn off the main power supply to the dryer.

15.In case of an emergency, press the dryer power stop button. The burners, fans and all augers will stop immediately.

STAGED BATCH FAN & HEATER SWITCH SETTINGS

Fan Setting	Heater Setting	Fan Function	Heater Function
Auto	Auto	Fans stay on during dry and cool	Burners stay on during dry timer cycle
		cycle only	only
Auto	On	Fans stay on during dry and cool	Burners stay on during dry and cool
		cycle only
On	On	Fans are on continuously	Burners are on continuously
On	Auto	Fans are on continuously	Burners shut down at the end of the
			dry cycle

At the end of the dry cycle in staged batch, the fans and heaters will continue running if in the Auto-Auto setting, until the

preset temperature on the moisture control thermostat is reached.

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