Airstream PNEG-343 service manual Staged Batch Check, Dryer Shutdown, Emergency

Page 17

DRYER PRE START CHECKS

All dryer functions should be checked before operation each season.

slightly decease gas pressure with the lo-fire control valve. If the gas pressure is decreased too much a popping or fluttering sound will be heard. Also, anytime the high pres- sure side is adjusted, the low pres- sure side needs to be checked. Re- peat the test for each fan/heater unit.

STAGED BATCH CHECK

To check the staged batch opera- tion, turn the control power switch to the on position. Turn the drying mode switch to the staged batch posi- tion. Press the reset button, open the main fuel supply valve at the tank on an LP dryer, or valve in the fuel supply line on a natural gas dryer.

Turn on the electric shut off valve to allow fuel flow to the dryer, if so equipped. Turn the load switch to auto and unload switch to one speed. Push the dryer power start button, and the controller will se- quentially start all dryer components in their proper order. If any switches are not in their correct position for staged batch operation, the dryer will indicate improper switch position, and will not start until the switches are in the proper position. After start- ing, all batch timers will time down in sequence. When the unload cycle is complete the timers will automati- cally reset to their original settings, and start the dry timer again.

DRYER SHUTDOWN

To shut down the dryer, first close the fuel supply valve at the tank or valve along the fuel line. If the burner is operating, let the dryer run out of fuel, and it will shut down automatically due to loss of flame. Close the fuel valve at the dryer, and press the dryer power stop button. Turn off the safety discon- nect handle on the front of the power box, and turn off the main power to the dryer.

EMERGENCY

In case of emergency push the dryer power stop button. The fan, burner and all augers will stop immediately.

17

Image 17
Contents Ryer Operation Page Table of Contents Series Dryer Operation and ServiceWarranty Safety Alert Symbol Safety FirstSafety Alert Decals Careful Operator Is the Best Insurance Against AN AccidentSafety Alert Decals Keep the Dryer Clean Do not Allow Fine Safety PrecautionsDryer Control Panel Moisture Control SwitchMoisture Control Thermostat Information regarding dryer operationDrying Mode Switch Control Power SwitchLoad Auger Switch FAN SwitchesDryer Power Stop Switch Dryer Power Start SwitchSetting the OUT Grain Timer Setting the DRY, Cool Batch and Unload TimersElectronic Monitoring Control System Turning on Electronic Monitoring Control SystemUtilizing Bushel Counter Setting the Load Unload DelaysDryer Safety Circuit Safety Circuit Shutdown Messages PRE Season Inspection Dryer PRE Start ChecksLoad Auger TWO Speed OperationONE Speed Operation Metering Roll OperationBurner Test Fire Burner SafetyEmergency Staged Batch CheckDryer Shutdown Turn the control power switch to on Continuous Flow and Continuous Batch Start UP ProcedureDryer Start UP Continuous Flow OperationFull Heat Series Continuous Flow Metering Roll SettingsDryer Start UP & Operation Dry & Cool Continuous Flow Metering Roll SettingsStaged Batch Operation Matically shut down during the cooling and unloading cycles Staged Batch FAN & Heater Switch SettingsFull Heat Dry & Cool Series Batch Timer SettingsSeries Staged Batch Timer Settings Series Service Guide Lube Procedures ServiceSeasonal Inspection and Service Insulation Class Consistency Type Grease Frame Type Suggested LubricantsClearance Holes FAN Propellor Removal and InstallationThreaded Bushing Holes FAN Motor Removal and Installation Heater Parts Removal and Installation Main Controls Metering Roll ServicingService Tool HOW to Determine a Metering Roll ProblemHOW to Clear a Jammed Metering Roll Series Wiring Diagrams INPUT/OUTPUT Board Terminal Identification Series Wiring to Control BOX Series Control Wiring Series Safety Wiring Diagram Series Front Panel Internal Wiring Series Front Panel External Wiring Dryer FAN can Control Wiring Series 220 Volt Single Phase Control Wiring Series 220 Volt 3 Phase Power Wiring Series 440 Volt 3 Phase Power Wiring Problem Possible Cause Trouble Analysis ProcedureDisplay shows Burner 1, 2 or 3 Warning Flame May not be turning. The air switch may need adjustment Problem Possible Cause Trouble Analysis Procedure Change the marquee on the LCD dis- play Press the enter button when desired setting is reachedQuick Reference Guide Page