Sterling SDA Series 25-100 2-3Standard Features, Typical Dryer Air Flow Schematic, Filte

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Figure 1: Typical Dryer Air Flow Schematic

Regeneration

MoistureMake Up

Exhaus

Filte

High Pressure

Peripheral

Drying

Hoppe

Thermocouple

location

2-3 Standard Features

Mechanical Features

•Dual desiccant beds

•Electrically-actuated air valve

•13X Molecular Sieve

•Single regenerative process blower

•Drying temperature range of 180ºF to 230ºF (82ºC to 110ºC).

•2.5” hose connections

Electrical Features

•Process thermocouple to be connected to drying hopper air inlet.

•Nema 12 control enclosure

•NFPA79 machinery electrical standards

•Non-fused electrical disconnect (3 phase models only)

•Branch fusing

15, 30, & 60 cfm Compact Dryers

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Contents SDA Series 15-60cfm Compact Dehumidifying Dryers If the Shipment is Not Complete Shipping InformationUnpacking and Inspection In the Event of Shipping DamageCHAPTER 2: FUNCTIONAL DESCRIPTION Table of ContentsCHAPTER 3 INSTALLATION CHAPTER 1 SAFETY15, 30, & 60 cfm Compact Dryers CHAPTER 5 MAINTENANCECHAPTER 6 TROUBLESHOOTING CHAPTER 7 APPENDIXSafety Symbols Used in this Manual Chapter 1 Safety1-1How to Use This Manual Dryer Safety Tags 1-2Safety Tag Information1-3Warnings and Precautions Read Operation and Installation ManualOperator Responsibility 1-4ResponsibilityGeneral Responsibility REMEMBER Reporting a Safety Defect Maintenance ResponsibilityWhat is desiccant? Chapter 2 Functional Description2-1Models Covered in This Manual 2-2General DescriptionElectrical Features 2-3Standard FeaturesFigure 1 Typical Dryer Air Flow Schematic Mechanical FeaturesController Features 2-5Safety Devices and Interlocks2-4Options Fail Safe Operation Safety Circuit StandardsSafety Device Lock-Outs 3-2Rigging and Placing the Dryer Chapter 3 Installation3-1Uncrating the Equipment DEW POINT POWER ON15, 30, & 60 cfm Compact Dryers 3-3Electrical Connections Floor Mount Models 3-4Setup ProceduresThree-PhaseModels Checking for Proper Blower RotationOptional Aftercooler 3-5Initial Start-upInstalling Water Lines Drying Hopper Air Trap ConsiderationsShutting Down the Dryer Auto-Tuningthe DryerIndicator Lights Chapter 4 Operation4-1Controller Description and Operation SwitchesPV SV Process Air Temperature ControllerIndicator IndicatorLit when Control Output 1 is on. The Out1 Lit when Control Output 2 is on. Not used inIndicator Setting the Process Air TemperatureIndicator Adjustment LevelEntering Operating Parameters to Select Modes IndicatorName DescriptionOptional Setting the High Dew Point AlarmProcess Air Dew Point Display Controller Operation 4-2Dryer Operation ProceduresAlarm Display Messages PROC BLWR HIGH TEMP VALVE MTRHEAT COOL 50 SYSTEM NORMAL Valve Motor Time-Out Blower Overload No AlarmsEvery week Chapter 5 Maintenance5-1Preventative Maintenance Schedule Every DayVacuuming 5-2Preventative MaintenanceFigure 9 Air Filter Location and Disassembly Servicing Process Air FiltersServicing the Dew Point Monitor 5-3Corrective MaintenanceCleaning with Compressed Air Symptoms of Worn DesiccantReplacing Worn Desiccant + FIRST AID +Figure 11 Required Desiccant Amounts 13X Type Figure 10 Desiccant Bed Location and DisassemblyWARNING! Hazardous electrical current present ProceduresReplacing the Process/Regeneration Heater If used as an after-Cooler 3 to 4 GPM @ 85F Replacing/Cleaning the Cooling CoilFigure 13 Cooling Coil Location and Disassembly Replacement Procedures15, 30, & 60 cfm Compact Dryers 8.Inset the four 10-32bolts back in place9.Turn the water to the cooling coil back on HIGH TEMP Chapter 6 Troubleshooting6-1Introduction Cause PROC BLWRAlarm Message HIGH TEMPCause VALVE MTRUsing a Thermocouple Alarm MessageWarranty Restrictions 7-1WarrantyChapter 7 Appendix Warranty SpecificationsAnnex B Information 7-2Technical SpecificationsCustomer Responsibilities High Pressure Peripheral Blower 7-3Drawings and DiagramsAftercooler Design Specifications Regeneration MoistureMake Up Air ExhaustHigh Pressure Peripheral Blower Figure 16 Low Heat Model 120F to 250F Air FlowAfter-Cooler Regeneration MoistureMake Up Air ExhaustMechanical Components 7-4Spare Parts ListDRYER SPARE PARTS LIST 15, 30, 60 cfm Models 15, 30, & 60 cfm Compact DryersHI-COREDESICCANT DRYER 15/30/60 CFM UNITS 15, 30, & 60 cfm Compact DryersDescription 15, 30, & 60 cfm Compact Dryers30 CFM Description 15, 30, & 60 cfm Compact Dryers60 CFM Description 15, 30, & 60 cfm Compact DryersA0571672 120V CONTROL COMMON PARTSCredit Returns 7-5Returned Material PolicyService Department 7-6Dryer Identification Serial Number Tag7-7Technical Assistance Warranty Returns15, 30, & 60 cfm Compact Dryers Contract Department