Sterling 350-2100 CFM Servicing the Regeneration Filter, Dirty Filter Alarm Calibration

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service. Satisfactory filtration should be obtained through the second or third washing , however the dirt holding capacity of the filter decreases after each washing.

After Each Cleaning:

•Inspect the filter element – hold a light bulb behind the element to find fatigued paper or residual dirt.

•Inspect the end plates – damage here could allow air to bypass the filter.

•Look for rust on the end plates and metal core – rust particles could flake off and contaminate the dryer and resin.

•Check the gasket for damage – a damaged gasket will allow contaminants into the process. Replace if needed.

6-4 Servicing the Regeneration Filter

WARNING:

Operating the dryer without the regeneration air filters installed will void the warranty.

Filter Cleaning is an important part of dryer maintenance.

These dryers are equipped with a filter in the regeneration air loop. Regular filter cleaning will keep your dryer operating at peak efficiency.

To Clean the Regeneration Filter:

•Turn off and/or lock out electrical power to the dryer.

•Slide the panel filter out of its housing.

•Vacuum or carefully blow out the filter with compressed air. If the filter is worn or can't be cleaned, replace it.

•Slide the filter back into its housing.

6-5 Dirty Filter Alarm Calibration

Dryer models 350-2100 may be equipped with an optional Dirty Filter Indicator. When this indicator lights, it is time to clean or change the filter. The Dirty Filter indicator is tested and calibrated at the factory, but it can be adjusted in the field.

1.Be sure that your filter is clean, and use the following procedure.

2.Remove the process air return filter element from its housing.

3.Block off approximately 50% of the filter's surface area to simulate a dirty filter.

4.Reinstall the cartridge and secure the cover.

5.While the process blower is operating, adjust the trim screw on the differential pressure switch until the alarm light just comes on.

6.Remove the restricted filter cartridge from the housing again. The alarm light should stay off when the process blower operates if the switch is adjusted correctly.

7.Re-install the obstructed cartridge filter. The alarm light should go on again if the switch is adjusted correctly.

8.Fine tune the switch setting so it consistently warns of a blocked filter and does not falsely indicate a blockage of a clean filter.

350-2100 cfm Dryers

Chapter 6: Maintenance

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Contents Large Dehumidifying Dryers SDA Series 350 2100 CFMWrite Down Your Serial Numbers Here For Future Reference Shipping Info Table of Contents Maintenance How to Use This Manual SafetySafety Symbols Used in this Manual Dryer Safety Tags Safety Tag InformationWear Safety Glasses and Work Gloves General Responsibility ResponsibilityOperator Responsibility Remember Maintenance ResponsibilityReporting a Safety Defect Optional Features Typical Features and ComponentsFunctional Description Models Covered in This ManualClosed Loop Drying System What is Desiccant?Process/Regeneration Cycle Cfm Dryers Functional Description TOP View Left Side View Work Rules InstallationElectrical Connections Check For Proper Blower RotationDrying Hopper Air Trap Aftercooler Cooling Water ConnectionTypical Control Panel Control Panel Control Panel Indicator LightsProcess Blower Failure Alarm Valve Position Error Switches and MetersPLC Control Process Air Temperature ControllerProcess Air Temperature Controller Process Value Numeric LED Temperature Controller LED IndicatorsOptional Communications Protocols Temperature Controller Keys See in SectionPre-Startup Checks Startup, Shutdown & OperationStartup Setting the High and Low Temperature Alarms Setting the Process Air TemperatureTo Change the Process Air High Temperature Alarm Setting ShutdownTemperature Controller Internal Switches Temperature Controller Autotune ProcedureTemperature Controller Anti-Tamper Lockout Switch Enabling the Lockout FeatureChanging the Display from Fahrenheit to Centigrade Setting the Dewpoint Extend Shift PointTo Change the Dewpoint Shift Point LL Setpoint Low Regeneration Alarm Setpoint 130F Regeneration Monitoring System Signal ProcessorSetpoint Regeneration Blower Shutdown Temp 160F HH Setpoint Heater Cut Off Temp 300FSeven Day Timer Optional Auxiliary Process Safety System OptionalSetting the start up time Setting the Current Day of the Week, Hour and MinutePut the timer into Run mode Setting the stop timeSet the days of the week for automatic operation Filter Cleaning/Replacement MaintenanceServicing the Process Air Filters Models Servicing the Process Air Filters Models 850 through Filter Cleaning/ReplacementTo Clean the Regeneration Filter Dirty Filter Alarm CalibrationServicing the Regeneration Filter Symptoms of Worn Out Desiccant Dewpoint Control System ServiceTo check the dewpoint sensor and dewpoint control board First AID Desiccant Replacement ProcedureDesiccant Amounts Required Process Heater Replacement ProcedureSpots and lead to premature heater failure Regeneration Heater Replacement ProcedureRestoring a Temperature Controller to the Factory Setup Switch To select a setting 10F Process Temperature Control Error Messages Regeneration Monitor Signal Processor Error Messages Moving Between Levels Regeneration Monitor Advanced ProgrammingHysteresis SetpointsInput Shift Security Protection Scale Indication Sensor Input TypeDisplay Refresh Cycle Problem Possible Cause Corrective Action TroubleshootingProblem Possible Cause Corrective Action Problem Possible Cause Corrective Action Appendix Warranty ReturnsReturned Material Policy Credit ReturnsCfm Dryers Appendix Preventive Maintenance Checklist Dehumidifying Dryers Technical Assistance Service DepartmentParts Department Sales Department

350-2100 CFM specifications

The Sterling 350-2100 CFM is a high-performance ventilation system that effectively addresses the needs of various industrial and commercial applications. This versatile unit is designed to provide optimal air movement, offering flow rates spanning from 350 to 2100 cubic feet per minute (CFM). Its capabilities make it ideal for environments that require robust air circulation, such as warehouses, factories, and workshops.

One of the standout features of the Sterling 350-2100 CFM is its energy-efficient motor. The unit is equipped with a reliable and durable drive system, allowing for lower energy consumption while maintaining high performance. This not only reduces operational costs but also contributes to a greener footprint, making it an attractive option for businesses looking to enhance sustainability.

The ventilation system is designed with an advanced aerodynamic blade technology that maximizes airflow and minimizes noise levels. This allows for a more comfortable working environment by reducing the disruption typically associated with high-velocity air movement. Additionally, the integrated sound-dampening features ensure that it operates quietly, making it suitable for noise-sensitive areas.

The Sterling 350-2100 CFM also incorporates a user-friendly control panel, which allows for easy adjustments and monitoring of airflow levels. This system can be tailored to specific ventilation requirements, ensuring optimal performance in diverse settings. For added convenience, some models come with remote control capabilities, allowing operators to manage airflow from a distance.

Durability is a key characteristic of the Sterling 350-2100 CFM. The unit is constructed with high-grade materials that resist wear and tear, providing long-lasting service even in challenging environments. The weather-resistant design further enhances its suitability for outdoor applications.

Moreover, the system can be easily integrated with existing HVAC setups, providing flexibility and compatibility without extensive modifications. Maintenance is also simplified, with easily accessible components for routine checks and servicing.

In summary, the Sterling 350-2100 CFM ventilation system stands out for its combination of energy efficiency, quiet operation, and robust design. With its innovative technologies and user-friendly features, it meets the demands of modern industrial and commercial spaces while ensuring optimal air quality and comfort for occupants.
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