Initial Start-up, Pre-Startup Checks | Sterling SDAA 25-100 specs

3-5 Initial Start-up

Pre-Startup Checks

;Check the process and return hoses for tight connections.

;Check all companion equipment, such as the drying hopper; verify that the loading system is ready for operation.

;Verify that all dryer electrical connections are tight.

Starting Up the Dryer

1.Turn on (energize) the disconnect switch in your power drop, then turn on the one on the dryer.

2.Turn the system ON/OFF switch to ON to energize the display panel.

3.Close the slidegate at the bottom of the drying hopper. Make sure that the blowers turn in the right direction.

4.Fill the drying hopper with material.

5.Turn the dryer ON switch to START to start the dryer.

The process blower starts.

6.If your dryer has a water-cooled aftercooler, make sure that sufficient cooling water (3gpm at 85°F or lower) flows properly through the coil and that you have bled any trapped air from the system. Make sure the aftercooler has the proper supply water temperature.

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

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

9.Turn on the machine convey ON/OFF switch to ON, and set the convey timer for the proper conveying time.

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 beige button once. The AT screen will show with the setting OFF.

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

3.Press the beige button again to go back 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.

Dehumidifying Dryers

Chapter 3: Installation

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Sterling SDAA 25-100 specifications Initial Start-up, Pre-Startup Checks, Starting Up the Dryer, Auto-Tuning the Dryer

Contents

Sdaa 25-100 15-60 cfm Dehumidifying Dryers Shipping Information Table of Contents Maintenance Service Department Sales Department Contract Department Safety Symbols Used in this Manual SafetyHow to Use This Manual Wear Safety Glasses and Work Gloves General Responsibility Responsibility Remember Operator Responsibility Reporting a Safety Defect Maintenance Responsibility Dehumidifying Dryers Safety General Description Functional DescriptionModels Covered in This Manual Electrical Features Standard FeaturesWhat is desiccant? Mechanical Features Options Safety Devices and InterlocksController Features Fail Safe Operation Safety Circuit StandardsSafety Device Lock-Outs Rigging and Placing the Dryer InstallationUncrating the Equipment Machine-Mount Dryer Dimensions Floor-Mount Dryer Dimensions Recommended Dryer Lifting Hardware Suggested Lift Rigging for Cart Mounted Dryers Suggested Lift Rigging for Machine Mounted Dryers Electrical Connections Making Dryer/Drying Hopper Process Air Connections Setup ProceduresThree-Phase Models Checking for Proper Blower Rotation Optional Aftercooler Installing Water Lines Hose and Hose ClampDrying Hopper Air Trap Considerations Starting Up the Dryer Auto-Tuning the DryerInitial Start-up Pre-Startup Checks Shutting Down the Dryer Start-up Operation Controller Description and Operation SwitchesIndicator Lights Lit when Control Output 2 is on. Not used Process Air Temperature ControllerLit when Control Output 1 is on. The Out1 Setting the Process Air Temperature Indicator Name DescriptionLights in the Operation Indicator Section when Identifying Temperature Controller Keys E5CN Operating Parameters Tuned prior to dryer startup Adjustment Level Indicator Name Description ON, OFF Entering Operating Parameters to Select Modes Optional Setting the High Dew Point AlarmProcess Air Dew Point Display Watlow Operating Parameters Redundant Safety Controller DisplaySetting the Redundant Safety Controller 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 Shutting Down the Dryer Auto-Tuning the Dryer Photocopy this page for your maintenance records MaintenancePreventative Maintenance Schedule Vacuuming Preventative MaintenanceRecommendations for Cleaning and Replacing Filters Servicing Process Air Filters Servicing the Dew Point Monitor Cleaning with Compressed Air Symptoms of Worn Desiccant Corrective Maintenance Replacing Worn Desiccant First AID Consult local disposal regulations for more information Replacing the Process Heater Procedures Introduction TroubleshootingProblem Possible cause Corrective action Problem Possible cause Corrective action Check resin manufacturer’s data Using a Platinum Resistance Thermometer Determining Temperature Controller Errors or Sensor ErrorsUsing a Thermocouple Appendix WarrantyWarranty Specifications Warranty Restrictions Customer Responsibilities Warranty LiabilitiesOptional Components Annex B Information Technical Specifications Aftercooler Design Specifications Drawings and Diagrams Spare Parts List Level 2 & 3 Spare Parts List Electrical & Mechanical Returned Material Policy Safety Tag InformationWarranty Returns Dryer Safety Tags Located on back of Dryer Dryer Identification Serial Number Tag Sales Department Service DepartmentTechnical Assistance Parts Department