Sterling SDF 400, SDF 250, SDF 500 manual Cleaning or Replacing the Return Air Filter, SDF Dryer

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SDF 250/400/500

5.2.1. Cleaning or Replacing the Return Air Filter

Open the panel (A) by means of the provided switch cabinet key.

Open the tension ring on the housing of the return air filter (B) and remove the housing cover.

Remove the nut of the filter cartridge.

Remove the filter cartridge.

A

Clean the inside of the return air filter housing. Use non-fibrous cleaning cloths or an industrial type vacuum cleaner.

Blow compressed air from the inside out through the clogged filter cartridge or replace the filter cartridge.

Re-install the cleaned/new filter cartridge.

Mount the nut.

Install the lid of the return air filter housing.

Mount the tension ring with sealing.

Mount the panel (A).

B

FNever operate the dryer without return air filter

Figure 0: SDF Dryer

Maintenance 5-5

Image 42

Contents Sterling Material Processing SDF 250/400/500 SDF 250/400/500 Table of contents 10-1 General Information SDF 250/400/500 SDF 250/400/500 Explanations and information Legal basisFields of applications Safety instructions General Assembly OperationMaintenance For the safety of the devices Start up Control Unit Touch ScreenSwitching on the Dryer Basic parameters Entering Dryer ValuesDew point max Heater Reg. ActExit air Act Dew point ActEntering hopper values Granule Temp Hopper temp TargetHopper temp Act Drying time TargetSetting the timer Timer is only operating, when the dryer is switched on Actual hopper temperature displayed in C Status dryer Observing processing statusActual operation status Setting date and time Changing language SDF 250/400/500 Continuous operation SDF 250/400/500 Start up Switching the dryer/hopper heater off Error and error correction LED Alarm Actual messages Temperature Measurement Outgoing Air Defective Error Bypass FlapError Valve Block Excess Temperature Return AirTemperature Measurement Granules Defective Hopper Excess Temperature Heater HopperInsufficient Temperature Heater Hopper Excess Temperature Granules HopperMain switch hopper heater # Controller is off Overload Regeneration Heater STB has been activatedOverload Drying Heater STB has been activated Alarm protocol Maintenance SDF 250/400/500 Maintenance schedule Cleaning or Replacing the Air Filter Cleaning or Replacing the Return Air Filter SDF DryerCleaning or Replacing the Regeneration air filter Filter of the electrical cabinet Disposing of Drying Agents Cleaning the Drying Hopper Remove any granules remaining in the cleaning opening STTSTT 60 Changing the battery of the control system Notch on the battery connector must point to the leftSDF 250/400/500 Resetting the control values Functional description Dew point dependent regeneration switch optional General InformationDrying Hopper Optional Hopper heaters optionalConnection to a Pneumatic Conveying System Optional Return Air Cooler OptionalTransport, Assembly and Storage Tansport and Packing Transport with a fork lift truckTransport with a workshop crane Assembly StorageAssembly instructions Connection of Return Air Cooler Optional Electrical Connection Compressed Air Supply Optional Equipment Technical dataBasic Version PerformanceSDF 250/400/500 Accessories Accessories Spare parts list Drying Hoppers STT 25 STT STT 25 STT STT 25 STT STT 25 STT STT 25 STT STT 25 STT