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Sterling SDAA 25-100 Indicator Name Description, Lights in the Operation Indicator Section when

Models: SDAA 25-100

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Indicator	Name	Description

ALARM1	ALARM 1 LED	Lights in the Operation Indicator Section when
		the output function assigned to auxiliary output
		1 turns on. The ALARM1 indicator lights when
		the process temperature exceeds the set point
		temperature by more than the alarm deviation
		value. Alarm output de-energizes the heaters.
		Heaters re-energize when the temperature falls
		within the acceptable range.

Identifying Temperature Controller Keys

Indicator	Name	Description

	Mode Key	Press the Mode key to shift the display to the next
		set of parameters. The menu screen displays.

	Down Key	Press the Down arrow key to lower the process air
		set point temperature. During setup, it lets you
		decrease the value of the parameter displayed on
		the set point LED readout.

	Up Key	Press the Up arrow key to raise the process air set
		point temperature. During setup, it lets you
		increase the value of the parameter displayed on
		the set point LED readout.

Setting the Process Air Temperature

When setting the process air temperature, consult with the resin manufacture for the recommended drying temperature.

To change the process air temperature set point with the dryer running:

•Press to raise the set point to the temperature you want.

•Press to lower the set point to the temperature you want.

Dehumidifying Dryers

Chapter 4: Operation

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Sterling SDAA 25-100 specifications Indicator Name Description, Lights in the Operation Indicator Section when

Contents

Sdaa 25-100 15-60 cfm Dehumidifying Dryers Shipping Information Table of Contents Maintenance Service Department Sales Department Contract Department How to Use This Manual SafetySafety Symbols Used in this Manual Wear Safety Glasses and Work Gloves Responsibility General ResponsibilityOperator Responsibility RememberMaintenance Responsibility Reporting a Safety DefectDehumidifying Dryers Safety Models Covered in This Manual Functional DescriptionGeneral Description Standard Features What is desiccant?Mechanical Features Electrical FeaturesController Features Safety Devices and InterlocksOptions Safety Device Lock-Outs Safety Circuit StandardsFail Safe Operation Uncrating the Equipment InstallationRigging and Placing the Dryer Machine-Mount Dryer Dimensions Floor-Mount Dryer Dimensions Suggested Lift Rigging for Cart Mounted Dryers Recommended Dryer Lifting HardwareElectrical Connections Suggested Lift Rigging for Machine Mounted DryersSetup Procedures Three-Phase ModelsChecking for Proper Blower Rotation Making Dryer/Drying Hopper Process Air ConnectionsDrying Hopper Air Trap Considerations Installing Water Lines Hose and Hose ClampOptional Aftercooler Auto-Tuning the Dryer Initial Start-upPre-Startup Checks Starting Up the DryerShutting Down the Dryer Operation Start-upIndicator Lights SwitchesController Description and Operation Lit when Control Output 1 is on. The Out1 Process Air Temperature ControllerLit when Control Output 2 is on. Not used Indicator Name Description Lights in the Operation Indicator Section whenIdentifying Temperature Controller Keys Setting the Process Air TemperatureE5CN Operating Parameters Adjustment Level Indicator Name Description Tuned prior to dryer startupEntering Operating Parameters to Select Modes ON, OFFProcess Air Dew Point Display Setting the High Dew Point AlarmOptional Setting the Redundant Safety Controller Redundant Safety Controller DisplayWatlow Operating Parameters Mode Parameter Setting range Default Manf. setting Dryer Operation Procedures Model Heating Cooling 15 cfm 30 cfm 60 cfm Page Controller Operation With Optional Alarm Horn & Reset Button Page Alarm Display Messages Auto-Tuning the Dryer Shutting Down the DryerPreventative Maintenance Schedule MaintenancePhotocopy this page for your maintenance records Preventative Maintenance Recommendations for Cleaning and Replacing FiltersServicing Process Air Filters VacuumingCleaning with Compressed Air Servicing the Dew Point MonitorCorrective Maintenance Symptoms of Worn DesiccantFirst AID Replacing Worn DesiccantConsult local disposal regulations for more information Procedures Replacing the Process HeaterProblem Possible cause Corrective action TroubleshootingIntroduction Problem Possible cause Corrective action Check resin manufacturer’s data Using a Thermocouple Determining Temperature Controller Errors or Sensor ErrorsUsing a Platinum Resistance Thermometer Warranty Warranty SpecificationsWarranty Restrictions AppendixOptional Components Warranty LiabilitiesCustomer Responsibilities Technical Specifications Annex B InformationDrawings and Diagrams Spare Parts List Aftercooler Design SpecificationsLevel 2 & 3 Spare Parts List Electrical & Mechanical Safety Tag Information Warranty ReturnsDryer Safety Tags Returned Material PolicyDryer Identification Serial Number Tag Located on back of DryerService Department Technical AssistanceParts Department Sales Department