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Sterling SDF 400, SDF 250, SDF 500 manual Compressed Air Supply

Models: SDF 500 SDF 250 SDF 400

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8.4. Compressed Air Supply

SDF 250/400/500

8.4. Compressed Air Supply

A compressed air supply is needed to operate the valve stem.

Check whether the compressed air piping has been installed and connected properly.

Check whether fittings, length and quality of the hose assemblies are in accordance with the requirements.

The operating pressure is 5-6 bar (system overpressure).

Check the compressed air in the factory ductwork system.

Set the air pressure at 5-6 bar (system overpressure).

Open the panel by means of the provided switch cabinet key.

Attach the compressed air main to the maintenance unit (A).

Mount the panel.

L F

Depressurise the compressed air piping of the unit for all types of work.

The compressed air has to be dewatered, dustfree and oilfree. The operating pressure is 5-6 bar (system overpressure).

Assembly instructions 8-4

Image 63

Sterling SDF 400, SDF 250, SDF 500 manual Compressed Air Supply

Contents

Operating Instructions Dehumidified air dryer SDF SDF SDF With Touch control unitSterling Material Processing 5200 West Clinton Ave Milwaukee, WI Technical service Service departmentSDF 250/400/500 Sterling Material ProcessingSDF 250/400/500 Table of contents SDF 250/400/500 1. General Information General InformationSDF 250/400/500 1.1. Warnings and symbols Caution High noise pollution 1.5. Notes on Usage 1.2. Explanations and information1.3. Legal basis 1.4. Fields of applications2. Safety instructions 2.1. General Safety instructionsSDF 250/400/500 SDF 250/400/500 2.1.1. Assembly2.1.2. Operation Safety instructions2.1.3. Maintenance Safety instructionsSDF 250/400/500 2.2. For the safety of the devices Safety instructionsSDF 250/400/500 3. Start up Start up 3.1. Control Unit3.1.1. Touch Screen SDF 250/400/500Start up 3.2. Switching on the DryerSwitch on the system by means of the main switch SDF 250/400/500Target value Actual value Status Dryer Basic parameters3.3.1. Entering Dryer Values Return air cooler on/orroptional SDF 250/400/500 3.3.2. Entering hopper valuesEnter hopper name Status Hopper Back to “Start-Screen”Page 3.3.3. Setting the timer SDF 250/400/500Start up Start up ”internal” = operation with internal timer”off” = operation without timer SDF 250/400/500Actual dew point temperature optional 3.3.4. Observing processing statusActual hopper temperature displayed in C Target hopper temperature displayed in CDate/Time Enter the desired day and time 3.3.5. Setting date and timeSDF 250/400/500 Start upStart up 3.3.6. Changing languageThis function is password protected SDF 250/400/500Start up SDF 250/400/5003.4. Continuous operation 3.4.1.Continuous Operation of the Hopper3.4.2.Continuous Operation of the Dryer Start up SDF 250/400/500Switch off the hopper heater Switch off the dryer 3.5. Switching the dryer/hopper heater off4. Error and error correction Error and error correctionSDF 250/400/500 Failures must be repaired immediately The Safety Switch Drying Blower Has Been Actuated 4.1. Actual messagesError and error correction PLC = SPS Battery is EmptyTemperature Measurement Outgoing Air Defective Error and error correctionError Bypass Flap Error Valve BlockTemperature Measurement Granules Defective Hopper Error and error correctionExcess Temperature Heater Hopper Insufficient Temperature Heater HopperOverload Drying Heater - STB has been activated Error and error correctionMain switch hopper heater # - Controller is off SDF 250/400/5004.2. Alarm protocol Error and error correctionSDF 250/400/500 5. Maintenance FPlease observe the maintenance schedule 5.1. Maintenance schedule 5.2. Cleaning or Replacing the Air Filter Figure 0 SDF Dryer MaintenanceSDF 250/400/500 SDF 250/400/500 Figure 1 SDF DryerMaintenance Install the cleaned/new air filter AFNever operate the dryer without filter mat 5.2.3. Filter of the electrical cabinetMaintenance SDF 250/400/5005.3. Disposing of Drying Agents 5.4. Cleaning the Drying Hopper Figure 2 STT MaintenanceSDF 250/400/500 Maintenance SDF 250/400/500STT 5.5. Changing the battery of the control system Order number battery 5.5.1. Resetting the control values 6. Functional description Functional descriptionSDF 250/400/500 FThe dryer is rated for continuous operation 6.1. General InformationDew point dependent regeneration switch optional SDF 250/400/500SDF 250/400/500 6.2. Drying Hopper Optional6.2.1. Hopper heaters optional Figure 3 Drying HopperFigure 4 Suction Box 6.4. Return Air Cooler Optional7. Transport, Assembly and Storage Transport, Assembly and StorageSDF 250/400/500 Figure 5 Transport with a fork lift truck 7.1. Tansport and PackingFigure 6 Transport with a workshop crane Transport, Assembly and StorageSDF 250/400/500 7.3. Storage 7.2. Assembly8. Assembly instructions 8.2. Connection of Return Air Cooler Optional Assembly instructionsSDF 250/400/500 8.3. Electrical Connection 8.4. Compressed Air Supply Basic Version 9. Technical dataTechnical data SDF 250/400/500Technical data Dimension SheetSDF 250/400/500 10. Accessories AccessoriesSTT 25 - STT Accessories Spare parts list Drying Hoppers STT 25 - STTSterling Material Processing 5200 West Clinton Ave Milwaukee, WI Technical service Service departmentSTT 25 - STT Sterling Material ProcessingSTT 25 - STT STT 25 - STT Description STT 25 - STTDescription STT 25 - STT