Sterling 822.00292.00 Functional Description, Models Covered in This Manual, General Description

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Chapter 2: Functional Description

2-1 Models Covered in This Manual

This manual provides operation, installation, and maintenance instructions for 600-3000 cfm Large Dehumidifying Dryers with AP0 control. These dryers are available with electric heaters or gas burners. Gas dryers are indicated with a “G” in the model number. Model numbers are listed on the serial tag. Make sure you know the model and serial number of your equipment before contacting the manufacturer for parts or service.

Our dehumidifying dryers are designed to generate heated, dehumidified air at carefully controlled temperatures for use in closed-loop plastic drying systems. Dehumidifying dryers are sized to meet the specific requirements stated by the Customer at the time of purchase.

2-2 General Description

Moisture removal from hygroscopic (moisture attracting) plastic pellets is an essential step in the manufacture of high-quality plastic products.

Our Dehumidifying Dryers are used by the plastics industry to generate very low dewpoint air that is heated to a controlled temperature for drying plastic pellets and regrind.

The drying system consists of a dry air source and drying hoppers with process heating controls. The dry air source controls two primary sub-systems, the process air and the regeneration circuit. Each dryer has a left and a right desiccant bed so that one bed can regenerate while the other is in use. 2000-3000 cfm dryers feature two sets of desiccant beds, for a total of four desiccant beds.

The drying system can be configured for one drying hopper or for as many as 20 hoppers. The process air heater can be located on the dryer or on each individual drying hopper. Heaters that are located on the drying hoppers can be set up with their own independent controls or can be controlled centrally using the main dryer controller.

Specifying a Drying System

There were many variables considered in the selection of your drying system, including: type of materials, residence time, throughput of the extruder or injection molding machine, ambient air moisture and temperature, and the altitude at the processing site. Should your operating environment change, we can advise you on necessary equipment, process time and temperature modifications.

What is Desiccant?

Desiccant is a material that attracts and holds (absorbs) water from the air. The desiccant our dryers use is a synthetic crystalline metal aluminosilicate that is blended with a clay binder and formed into beads.

Absorbed water is driven from saturated desiccant by heating it to a high temperature (reducing the desiccant's capacity to hold water) and forcing air through it. This moisture removal process is called "regeneration".

The Closed Loop Drying System

These dehumidifying dryers force hot, dry air through the resin in the drying hopper, where the air picks up moisture from the material and is drawn back to the dryer. In the dryer,

Large Dehumidifying Dryers

Functional Description

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Contents SDA 1000-5100 Large Dehumidifying Dryers With AP0 Controls Shipping Info Unpacking and InspectionEvent of Shipping Damage If the Shipment is Not CompleteWarranty Returns ReturnsCredit Returns Table of Contents Operation Dryer Identification Serial Number Tag Technical Assistance Safety How to Use This ManualSafety Symbols Used in this Manual Dryer Safety Tags Description Wear Safety Glasses and Work GlovesResponsibility General ResponsibilityOperator Responsibility Maintenance Responsibility Reporting a Safety Defect Functional Description Models Covered in This ManualGeneral Description Process/Regeneration Cycle Regeneration CycleSequence of Operation Controller Description Controller Screen DescriptionsStandard Features Mechanical FeaturesElectrical Features Options Closed-Loop RegenerationProcess Aftercooler Recommended Temperature Settings Process Air Dust CollectorMaterial Overdrying Protection Mechanical Options Electrical OptionsSafety Devices and Interlocks Safety Circuit StandardsSafety Device Lock-Outs Fail Safe OperationPage Mechanical Installation Uncrating the EquipmentRigging and Placing Unit Making Electrical ConnectionsChecking for Proper Blower Rotation Checking Blower RotationMaking Dryer/Drying Hopper Process Air Connections Dryer/Drying Hopper Process Air ConnectionsConnecting Aftercooler/Precooler Cooling Water Optional Aftercooler Components & Flow RatesUsing the Drying Hopper Air Trap Drying Hopper Air TrapSwitches Indicator LightsProcess Air Temperature Controller ControlsLit when Control Output 1 is on. The Out1 Lit when Control Output 2 is on. Not usedIndicator Name Description Lights in the Operation Indicator Section whenSetting the Process Air Temperature E5CN Operating ParametersAdjustment Level Indicator Name Description Tuned prior to dryer startupEntering Operating Parameters to Select Modes ON, OFFSetting the High Dew Point Alarm Process Air Dew Point DisplayOptional Redundant Safety Controller Display Setting the Redundant Safety ControllerWatlow Operating Parameters Manf. setting Auto-Tuning the Dryer OperationInitial Start-up Pre-Startup ChecksDryer Operation Procedures Page Material Miser OFF Press + to Enable Alarm Display Messages Auto-Tuning the Dryer Shutting Down the DryerMaintenance Maintenance SchedulePhotocopy this page for your maintenance records Preventative Maintenance Cleaning or Replacing the Process Air FiltersCleaning or Replacing the Regeneration Filter Calibrating the Dirty Filter AlarmChecking the Dewpoint Control System Corrective Maintenance Symptoms of Worn Out DesiccantReplacing the Desiccant Desiccant Tower Assembly Replacing the Process Heater Electric DryersProcess Heater Box Assembly Replacing the Regeneration Heater Electric DryersRegeneration Heater Box Assembly Troubleshooting Basic TroubleshootingIntroduction Large Dehumidifying Dryers Troubleshooting Alarms Alarm DescriptionsAlarm Alarm Description Alarm Effect Code Determining Temperature Controller Errors or Sensor Errors Using a ThermocoupleUsing a Platinum Resistance Thermometer Technical Specifications Aftercooler Design SpecificationsAppendix Annex B InformationDrawings and Diagrams Optional dryer dust collector Spare Parts List Level 3 Mechanical Components Dryer Identification Serial Number Tag Located on back of DryerService Department Technical AssistanceParts Department Sales Department

822.00292.00 specifications

Sterling 822.00292.00 is an advanced piece of equipment that stands out in the competitive landscape of modern machinery. Known for its precision engineering and robust performance, this model is particularly favored in industries requiring reliability and efficiency.

One of the main features of the Sterling 822.00292.00 is its high-performance motor, designed to deliver exceptional power while maintaining energy efficiency. This motor is bolstered by advanced cooling technologies that ensure optimal performance during prolonged use. As a result, users can expect minimal downtime and reduced wear and tear, enhancing the lifespan of the equipment.

The device also incorporates cutting-edge digital control systems, which facilitate easy operation and monitoring. This technology allows operators to make real-time adjustments, improving overall workflow and productivity. The user interface is designed with simplicity in mind, making it accessible for both seasoned professionals and newcomers alike.

In terms of construction, the Sterling 822.00292.00 is built with durable materials that withstand harsh working conditions. Its robust frame ensures stability, while the compact design allows for easy integration into various environments, from industrial plants to smaller workshops.

Another noteworthy characteristic of the Sterling 822.00292.00 is its versatility. The machine is designed to handle a wide range of applications, making it suitable for diverse sectors, including manufacturing, automotive, and aerospace. This adaptability is further enhanced by interchangeable components, which allow for customization based on specific operational needs.

Safety is paramount in the design of the Sterling 822.00292.00. The equipment is equipped with multiple safety features, including emergency shut-off systems and protective enclosures. These elements not only safeguard the operators but also contribute to the overall integrity of the machinery, reducing the risk of accidents and ensuring compliance with industry standards.

Furthermore, the Sterling 822.00292.00 is backed by extensive customer support and a comprehensive warranty, highlighting the manufacturer's commitment to quality and customer satisfaction. Users can access a wealth of resources, including manuals and troubleshooting guides, ensuring they can maximize the potential of their investment.

In conclusion, the Sterling 822.00292.00 represents a blend of innovation, reliability, and user-friendliness. With its impressive array of features and technologies, it has become a go-to option for professionals across various industries looking to enhance their operational efficiency.
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