Sterling SDA Series 25-100 specifications Auto-Tuningthe Dryer, Shutting Down the Dryer

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trapped air from the system. Make sure the aftercooler has the proper supply water temperature.

6.Set the process set point on the temperature controller.

7.After the proper pre-drying time for the initial hopper fill has elapsed, fully open the drying hopper slide gate.

Note: To allow proper residence time during continuous processing, maintain the material level in the hopper at the midpoint of the air trap assembly.

Auto-Tuning the Dryer

1.For Auto-tuning, press the Level Key once. The AT screen will show with the setting OFF.

2.Press UP arrow to change the setting to ON.

3.Press the Level Key again to the Temperature Screen. Your actual temperature will start to flash for about 10-20 minutes with the temperature fluctuating up and down during that period. After the flashing stops, it means auto-tuning has finished.

Shutting Down the Dryer

1.Turn off the conveying system supplying the drying hopper.

2.When processing is complete, close the hopper slide gate and shut down any in-line companion equipment, such as the aftercooler.

3.Turn the Dryer ON/OFF selector switch to OFF.

4.Turn the system ON/OFF switch to OFF.

5.If needed, empty the drying hopper.

6.For maintenance or a long term shutdown, open (de-energize) the electrical disconnects at the dryer and at the power drop.

15, 30, & 60 cfm Compact Dryers

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Contents SDA Series 15-60cfm Compact Dehumidifying Dryers If the Shipment is Not Complete Shipping InformationUnpacking and Inspection In the Event of Shipping DamageCHAPTER 2: FUNCTIONAL DESCRIPTION Table of ContentsCHAPTER 3 INSTALLATION CHAPTER 1 SAFETY15, 30, & 60 cfm Compact Dryers CHAPTER 5 MAINTENANCECHAPTER 6 TROUBLESHOOTING CHAPTER 7 APPENDIX1-1How to Use This Manual Chapter 1 SafetySafety Symbols Used in this Manual Dryer Safety Tags 1-2Safety Tag Information1-3Warnings and Precautions Read Operation and Installation ManualGeneral Responsibility 1-4ResponsibilityOperator Responsibility REMEMBER Reporting a Safety Defect Maintenance ResponsibilityWhat is desiccant? Chapter 2 Functional Description2-1Models Covered in This Manual 2-2General DescriptionElectrical Features 2-3Standard FeaturesFigure 1 Typical Dryer Air Flow Schematic Mechanical Features2-4Options 2-5Safety Devices and InterlocksController Features Safety Device Lock-Outs Safety Circuit StandardsFail Safe Operation 3-1Uncrating the Equipment Chapter 3 Installation3-2Rigging and Placing the Dryer 15, 30, & 60 cfm Compact Dryers POWER ONDEW POINT 3-3Electrical Connections Floor Mount Models 3-4Setup ProceduresThree-PhaseModels Checking for Proper Blower RotationOptional Aftercooler 3-5Initial Start-upInstalling Water Lines Drying Hopper Air Trap ConsiderationsShutting Down the Dryer Auto-Tuningthe DryerIndicator Lights Chapter 4 Operation4-1Controller Description and Operation SwitchesPV SV Process Air Temperature ControllerIndicator IndicatorLit when Control Output 1 is on. The Out1 Lit when Control Output 2 is on. Not used inIndicator Setting the Process Air TemperatureIndicator Adjustment LevelEntering Operating Parameters to Select Modes IndicatorName DescriptionProcess Air Dew Point Display Setting the High Dew Point AlarmOptional Controller Operation 4-2Dryer Operation ProceduresAlarm Display Messages PROC BLWR HIGH TEMP VALVE MTRHEAT COOL 50 SYSTEM NORMAL Valve Motor Time-Out Blower Overload No AlarmsEvery week Chapter 5 Maintenance5-1Preventative Maintenance Schedule Every DayVacuuming 5-2Preventative MaintenanceFigure 9 Air Filter Location and Disassembly Servicing Process Air FiltersServicing the Dew Point Monitor 5-3Corrective MaintenanceCleaning with Compressed Air Symptoms of Worn DesiccantReplacing Worn Desiccant + FIRST AID +Figure 11 Required Desiccant Amounts 13X Type Figure 10 Desiccant Bed Location and DisassemblyReplacing the Process/Regeneration Heater ProceduresWARNING! Hazardous electrical current present If used as an after-Cooler 3 to 4 GPM @ 85F Replacing/Cleaning the Cooling CoilFigure 13 Cooling Coil Location and Disassembly Replacement Procedures9.Turn the water to the cooling coil back on 8.Inset the four 10-32bolts back in place15, 30, & 60 cfm Compact Dryers 6-1Introduction Chapter 6 TroubleshootingHIGH TEMP Cause PROC BLWRAlarm Message HIGH TEMPCause VALVE MTRUsing a Thermocouple Alarm MessageWarranty Restrictions 7-1WarrantyChapter 7 Appendix Warranty SpecificationsCustomer Responsibilities 7-2Technical SpecificationsAnnex B Information High Pressure Peripheral Blower 7-3Drawings and DiagramsAftercooler Design Specifications Regeneration MoistureMake Up Air ExhaustHigh Pressure Peripheral Blower Figure 16 Low Heat Model 120F to 250F Air FlowAfter-Cooler Regeneration MoistureMake Up Air ExhaustMechanical Components 7-4Spare Parts ListDRYER SPARE PARTS LIST 15, 30, 60 cfm Models 15, 30, & 60 cfm Compact DryersHI-COREDESICCANT DRYER 15/30/60 CFM UNITS 15, 30, & 60 cfm Compact Dryers30 CFM 15, 30, & 60 cfm Compact DryersDescription 60 CFM 15, 30, & 60 cfm Compact DryersDescription Description 15, 30, & 60 cfm Compact DryersA0571672 120V CONTROL COMMON PARTSCredit Returns 7-5Returned Material PolicyService Department 7-6Dryer Identification Serial Number Tag7-7Technical Assistance Warranty Returns15, 30, & 60 cfm Compact Dryers Contract Department