Sterling SDA AP-1 specifications Troubleshooting

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	Replacing the Regeneration Heater (Electric Dryers)	62
CHAPTER 7: TROUBLESHOOTING		64
7-1	Introduction	64
7-2	Basic Troubleshooting	64
7-3 Determining Temperature Controller Errors or Sensor Errors		66
	Using a Thermocouple	66
	Using a Platinum Resistance Thermometer	66
CHAPTER 8: APPENDIX		67
8-1	Returned Material Policy	67
8-2	Technical Specifications	68
	Annex B Information	68
8-3	Spare Parts List	69
8-4 8-5 Dryer Identification (Serial Number) Tag		70
8-4 8-5 Dryer Identification (Serial Number) Tag		71
8-5	Technical Assistance	72
	Parts Department	72
	Service Department	72
	Sales Department	72
	Contract Department	72

Large Dehumidifying Dryers

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Contents SDA Large AP-1 Control Dehumidifying Dryer Event of Shipping Damage Shipping InfoUnpacking and Inspection If the Shipment is Not CompleteReturns Table of Contents Operation Troubleshooting Safety How to Use This ManualSafety Symbols Used in this Manual Dryer Safety Tags Description Responsibility General ResponsibilityOperator Responsibility Maintenance Responsibility Reporting a Safety Defect Functional Description Models Covered in This ManualGeneral Description Process/Regeneration Cycle Sequence of OperationMechanical Features Standard FeaturesAuto Start Timer Electrical FeaturesOptions Dewpoint ExtendClosed-Loop Regeneration Drawings and Diagrams Optional dryer dust collector Aftercooler Design Specifications Process AftercoolerProcess Air Dust Collector Process Air Dust Collector Recommended Temperature Settings Material Overdrying ProtectionMechanical Options Electrical OptionsController Options Safety Device Lock-Outs Safety Devices and InterlocksSafety Circuit Standards Fail Safe OperationPage Dimensions and Specifications Denotes availability Mechanical Options Denotes availabilityDenotes availability Rigging and Placing Unit Mechanical InstallationUncrating the Equipment Making Electrical ConnectionsMaking Gas Line Connections Gas-Fired Models Only DescriptionChecking for Proper Blower Rotation Checking Blower RotationMaking Dryer/Drying Hopper Process Air Connections Dryer/Drying Hopper Process Air ConnectionsProcess Air Heater on Drying Hopper Large Dehumidifying Dryers Mechanical Installation Connecting Aftercooler/Precooler Cooling Water Optional Aftercooler Components & Flow RatesUsing the Drying Hopper Air Trap Drying Hopper Air TrapControls Controller DescriptionProcess Air Temperature and Conveying Process Controller Dryer Status Screen Startup ScreenDryer Alarms Help System LOG OFF Identifying Controller ScreensMain Menu Screen Setting Values Dryer Status Dryer Setup Over DRY Protect Alarms Auto Tune Dryer MenuAuto Start Main Menu Dryer Setup Screen 2 Dryer Setup Screen 3Dryer Setup Screen 4 Overdry Protection Overdry Protection Screen 1Overdry Protection Screen 2 Alarm History Screen AutotuneProcess AutoTune Screen Autostart Timer Screen DEW Point SetupDew Point Setup Screen Auto StartHelp Menu Screen System Setup SET Clock Hour Meters Alarm History StatusHelp Menu System MenuSystem Backup Service Menu Main Menu System Setup System Setup ScreenLOW Level Detection Setup Clock Menu Screen Autostart Clock ScreenInput Status Screen Hour Meter ScreenInput Status Output StatusSystem Backup Screen ServiceService Menu Screen Alarm Screens Redundant Safety Controller Display Alarm Screen ExampleSetting the Redundant Safety Controller Always put your set point to 30F above set pointLarge Dehumidifying Dryers Controls Operation Start-upUsing the Dryer Status Screen Alarms Alarm DescriptionsShutdown Maintenance Maintenance SchedulePhotocopy this page for your maintenance records Preventative Maintenance Cleaning or Replacing the Process Air FiltersCleaning or Replacing the Regeneration Filter Calibrating the Dirty Filter AlarmChecking the Dewpoint Control System Corrective Maintenance Symptoms of Worn Out DesiccantReplacing the Desiccant Desiccant Tower Assembly Replacing the Process Heater Electric DryersProcess Heater Box Assembly Replacing the Regeneration Heater Electric DryersRegeneration Heater Box Assembly Troubleshooting Basic TroubleshootingIntroduction Large Dehumidifying Dryers Troubleshooting Determining Temperature Controller Errors or Sensor Errors Using a ThermocoupleUsing a Platinum Resistance Thermometer Returned Material Policy Warranty ReturnsAppendix Credit ReturnsTechnical Specifications Annex B InformationSpare Parts List Level 3 Mechanical Components Dryer Identification Serial Number Tag Located on back of DryerParts Department Service DepartmentTechnical Assistance Sales Department