Setting the Redundant Safety Controller | Sterling SDA AP-1 manual

4-6 Setting the Redundant Safety Controller

The Redundant Safety Controller alarm setting is changed by pressing the up and down keys to input the alarm value. The upper display reading indicates the Process Value, while the lower display indicates the High Point Setting alarm value. The factory setting for the High Point Alarm Value is 150°F (-23°C).

Always put your set point to 30°F above set point.

To set the redundant safety controller:

1.Press the P button.

2.The controller will ask for a password. Press the Up button until you get to 10.

3.Press the Up button until you get to your desired temperature.

4.Press P again until you get to Run.

Large Dehumidifying Dryers

Controls

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Sterling SDA AP-1 specifications Setting the Redundant Safety Controller, Always put your set point to 30F above set point

Contents

SDA Large AP-1 Control Dehumidifying Dryer Event of Shipping Damage Shipping InfoUnpacking and Inspection If the Shipment is Not Complete Returns Table of Contents Operation Troubleshooting Safety Symbols Used in this Manual SafetyHow to Use This Manual Dryer Safety Tags Description Operator Responsibility ResponsibilityGeneral Responsibility Maintenance Responsibility Reporting a Safety Defect General Description Functional DescriptionModels Covered in This Manual Process/Regeneration Cycle Sequence of Operation Mechanical Features Standard FeaturesAuto Start Timer Electrical Features Closed-Loop Regeneration OptionsDewpoint Extend Drawings and Diagrams Optional dryer dust collector Process Air Dust Collector Aftercooler Design SpecificationsProcess Aftercooler Process Air Dust Collector Recommended Temperature Settings Material Overdrying Protection Controller Options Mechanical OptionsElectrical Options Safety Device Lock-Outs Safety Devices and InterlocksSafety Circuit Standards Fail Safe OperationPage Dimensions and Specifications Denotes availability Mechanical Options Denotes availability Denotes availability Rigging and Placing Unit Mechanical InstallationUncrating the Equipment Making Electrical Connections Making Gas Line Connections Gas-Fired Models Only Description Checking for Proper Blower Rotation Checking Blower Rotation Making Dryer/Drying Hopper Process Air Connections Dryer/Drying Hopper Process Air Connections Process Air Heater on Drying Hopper Large Dehumidifying Dryers Mechanical Installation Connecting Aftercooler/Precooler Cooling Water Optional Aftercooler Components & Flow Rates Using the Drying Hopper Air Trap Drying Hopper Air Trap Controls Controller Description Process Air Temperature and Conveying Process Controller Dryer Status Screen Startup Screen Main Menu Screen Dryer Alarms Help System LOG OFFIdentifying Controller Screens Setting Values Auto Start Main Menu Dryer Status Dryer Setup Over DRY Protect Alarms Auto TuneDryer Menu Dryer Setup Screen 4 Dryer Setup Screen 2Dryer Setup Screen 3 Overdry Protection Screen 2 Overdry ProtectionOverdry Protection Screen 1 Process AutoTune Screen Alarm History ScreenAutotune Autostart Timer Screen DEW Point SetupDew Point Setup Screen Auto Start Help Menu Screen System Setup SET Clock Hour Meters Alarm History StatusHelp Menu System Menu LOW Level Detection Setup System Backup Service Menu Main Menu System SetupSystem Setup Screen Clock Menu Screen Autostart Clock Screen Input Status Screen Hour Meter ScreenInput Status Output Status Service Menu Screen System Backup ScreenService Alarm Screens Redundant Safety Controller Display Alarm Screen Example Setting the Redundant Safety Controller Always put your set point to 30F above set point Large Dehumidifying Dryers Controls Operation Start-up Using the Dryer Status Screen Alarms Alarm Descriptions Shutdown Photocopy this page for your maintenance records MaintenanceMaintenance Schedule Preventative Maintenance Cleaning or Replacing the Process Air Filters Cleaning or Replacing the Regeneration Filter Calibrating the Dirty Filter Alarm Checking the Dewpoint Control System Replacing the Desiccant Corrective MaintenanceSymptoms of Worn Out Desiccant Desiccant Tower Assembly Replacing the Process Heater Electric Dryers Process Heater Box Assembly Replacing the Regeneration Heater Electric Dryers Regeneration Heater Box Assembly Introduction TroubleshootingBasic Troubleshooting Large Dehumidifying Dryers Troubleshooting Using a Platinum Resistance Thermometer Determining Temperature Controller Errors or Sensor ErrorsUsing a Thermocouple Returned Material Policy Warranty ReturnsAppendix Credit Returns Technical Specifications Annex B Information Spare Parts List Level 3 Mechanical Components Dryer Identification Serial Number Tag Located on back of Dryer Parts Department Service DepartmentTechnical Assistance Sales Department