Sterling 882.00291.00 specifications 3-5Initial Start-up, Drying Hopper Air Trap Considerations

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Drying Hopper Air Trap Considerations

Our exclusive air trap assembly on the top of the drying hopper prevents ambient air from contaminating the material being dried. To ensure that your unit will operate at peak efficiency, do the following:

•Keep the material level at the mid point of the air trap

This can be achieved by utilizing a hopper loader or vacuum conveying system to supply material to the drying system.

Optional Aftercooler

Water-cooled 15 and 30 cfm models use a water-to-air heat exchanger as an aftercooler. Cooling water is required for this design (3 gpm at 85°F or lower). Return air from the hopper passes through the air filter to trap fines and dust before entering the heat exchanger.

Installing Water Lines

(Hose and Hose Clamp)

When installing the water lines, ensure that the aftercooler utilizes either tower, chilled or city water up to 85°F (29°C). Recommended flow rate is three (3 gpm) gallons per minute (11 liters per minute).

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.

Caution! Clean the rust-preventing oil from inside the drying hopper.

Failure to clean the hopper fouls the desiccant and voids your warranty!

;Verify that the dryer’s thermocouple is properly connected in the center of the drying hopper’s delivery tube.

;Verify that the temperature control has been configured for your specified scale (ºF or ºC).

Starting Up the Dryer

1.Turn on (energize) the disconnect switch in your power drop, then turn on the disconnect switch on the dryer (3 phase only).

2.Turn the system ON/OFF switch to ON to start the dryer.

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. Dryer performance is compromised if hopper is not full!

5.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

15, 30, & 60 cfm Compact Dryers

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Contents SDA Series 15-60cfm Compact Dehumidifying Dryers In the Event of Shipping Damage Shipping InformationUnpacking and Inspection If the Shipment is Not CompleteCHAPTER 1: SAFETY Table of ContentsCHAPTER 3: INSTALLATION CHAPTER 2: FUNCTIONAL DESCRIPTIONCHAPTER 7: APPENDIX CHAPTER 5: MAINTENANCECHAPTER 6: TROUBLESHOOTING 15, 30, & 60 cfm Compact DryersChapter 1 Safety 1-1How to Use This ManualSafety Symbols Used in this Manual Read Operation and Installation Manual 1-2Safety Tag Information1-3Warnings and Precautions Dryer Safety Tags1-4Responsibility General ResponsibilityOperator Responsibility REMEMBER Maintenance Responsibility Reporting a Safety Defect2-2General Description Chapter 2: Functional Description2-1Models Covered in This Manual What is desiccant?Mechanical Features 2-3Standard FeaturesFigure 1: Typical Dryer Air Flow Schematic Electrical Features2-5Safety Devices and Interlocks 2-4OptionsController Features Safety Circuit Standards Safety Device Lock-OutsFail Safe Operation Chapter 3: Installation 3-1Uncrating the Equipment3-2Rigging and Placing the Dryer POWER ON 15, 30, & 60 cfm Compact DryersDEW POINT 3-3Electrical Connections Checking for Proper Blower Rotation 3-4Setup ProceduresThree-PhaseModels Floor Mount ModelsDrying Hopper Air Trap Considerations 3-5Initial Start-upInstalling Water Lines Optional AftercoolerAuto-Tuningthe Dryer Shutting Down the DryerSwitches Chapter 4: Operation4-1Controller Description and Operation Indicator LightsProcess Air Temperature Controller PV SVLit when Control Output 2 is on. Not used in IndicatorLit when Control Output 1 is on. The Out1 IndicatorAdjustment Level Setting the Process Air TemperatureIndicator IndicatorDescription IndicatorName Entering Operating Parameters to Select ModesSetting the High Dew Point Alarm Process Air Dew Point DisplayOptional 4-2Dryer Operation Procedures Controller OperationAlarm Display Messages Valve Motor Time-Out Blower Overload No Alarms HIGH TEMP VALVE MTRHEAT COOL 50 SYSTEM NORMAL PROC BLWREvery Day Chapter 5: Maintenance5-1Preventative Maintenance Schedule Every weekServicing Process Air Filters 5-2Preventative MaintenanceFigure 9 Air Filter Location and Disassembly VacuumingSymptoms of Worn Desiccant 5-3Corrective MaintenanceCleaning with Compressed Air Servicing the Dew Point Monitor+ FIRST AID + Replacing Worn DesiccantFigure 10: Desiccant Bed Location and Disassembly Figure 11: Required Desiccant Amounts 13X TypeProcedures Replacing the Process/Regeneration HeaterWARNING! Hazardous electrical current present Replacement Procedures Replacing/Cleaning the Cooling CoilFigure 13: Cooling Coil Location and Disassembly If used as an after-Cooler:3 to 4 GPM @ 85F8.Inset the four 10-32bolts back in place 9.Turn the water to the cooling coil back on15, 30, & 60 cfm Compact Dryers Chapter 6: Troubleshooting 6-1IntroductionHIGH TEMP HIGH TEMP PROC BLWRAlarm Message CauseAlarm Message VALVE MTRUsing a Thermocouple CauseWarranty Specifications 7-1WarrantyChapter 7: Appendix Warranty Restrictions7-2Technical Specifications Customer ResponsibilitiesAnnex B Information Regeneration MoistureMake Up Air Exhaust 7-3Drawings and DiagramsAftercooler Design Specifications High Pressure Peripheral BlowerExhaust Figure 16: Low Heat Model 120F to 250F Air FlowAfter-Cooler Regeneration MoistureMake Up Air High Pressure Peripheral Blower15, 30, & 60 cfm Compact Dryers 7-4Spare Parts ListDRYER SPARE PARTS LIST 15, 30, 60 cfm Models Mechanical Components15, 30, & 60 cfm Compact Dryers HI-COREDESICCANT DRYER 15/30/60 CFM UNITSPart # 15, 30, & 60 cfm Compact Dryers30 CFM DescriptionItem 15, 30, & 60 cfm Compact Dryers60 CFM Part #120V CONTROL COMMON PARTS 15, 30, & 60 cfm Compact DryersA0571672 Item7-5Returned Material Policy Credit ReturnsWarranty Returns 7-6Dryer Identification Serial Number Tag7-7Technical Assistance Service DepartmentParts and Service Department Sales and Contracting DepartmentContract Department 15, 30, & 60 cfm Compact Dryers
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882.00291.00 specifications

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