Sterling SDA Series 25-100 2-4Options, 2-5Safety Devices and Interlocks, Controller Features

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•Mercury process heater contactor

•Process high temperature alarm light

•Process/regeneration heater box

•High temperature safety system (Process/Regeneration)

Controller Features

•Mitsubishi programmable relay controller

•Display of process temperature set point and actual settings

2-4 Options

Options marked with “*” indicate options that can be factory installed or retrofitted in the field.

•* Process temperature up to 400ºF (204º C) or below 180ºF (82ºC), including aftercooler with dryer and silicone insulated delivery hose.

Note:	For below 180°F (82ºC), cooler needs to cool the
	residual heat coming out of the desiccant tank prior to
	entering the process heater box.

•* If the dryer is a central dry air generator, it will not have a process heater box.

•* Plasticizer trap (with cooling coil) in lieu of standard aftercooler (mounts outside on back of dryer)

•* Drawer magnet, stainless steel construction.

•* Casters, two (2) fixed and two (2) swivels.

•* Machine mount adapter to accommodate a dryer and corresponding hopper.

•* Low temperature operation below 180ºF (82ºC), includes an internal cooler.

•* Redundant high temperature safety circuit.

•* Cart with caster with hopper mounting place.

•* Insulated air hose for air delivery.

•* Audible alarm.

•* Dew Point monitor with digital read-out.

2-5 Safety Devices and Interlocks

This section includes information on safety devices and procedures that are inherent to the Dryer. This manual is not intended to supersede or alter safety standards established by the user of this equipment. Instead, the material contained in this section is recommended to supplement these procedures in order to provide a safer working environment.

At the completion of this section, the operator and maintenance personnel will be able to do the following:

•Identify and locate specific safety devices.

•Understand the proper use of the safety devices provided.

•Describe the function of the safety device.

15, 30, & 60 cfm Compact Dryers

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Contents SDA Series 15-60cfm Compact Dehumidifying Dryers Shipping Information Unpacking and InspectionIn the Event of Shipping Damage If the Shipment is Not CompleteTable of Contents CHAPTER 3 INSTALLATIONCHAPTER 1 SAFETY CHAPTER 2: FUNCTIONAL DESCRIPTIONCHAPTER 5 MAINTENANCE CHAPTER 6 TROUBLESHOOTINGCHAPTER 7 APPENDIX 15, 30, & 60 cfm Compact DryersChapter 1 Safety 1-1How to Use This ManualSafety Symbols Used in this Manual 1-2Safety Tag Information 1-3Warnings and PrecautionsRead Operation and Installation Manual Dryer Safety Tags1-4Responsibility General ResponsibilityOperator Responsibility REMEMBER Maintenance Responsibility Reporting a Safety DefectChapter 2 Functional Description 2-1Models Covered in This Manual2-2General Description What is desiccant?2-3Standard Features Figure 1 Typical Dryer Air Flow SchematicMechanical Features 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 3-4Setup Procedures Three-PhaseModelsChecking for Proper Blower Rotation Floor Mount Models3-5Initial Start-up Installing Water LinesDrying Hopper Air Trap Considerations Optional AftercoolerAuto-Tuningthe Dryer Shutting Down the DryerChapter 4 Operation 4-1Controller Description and OperationSwitches Indicator LightsProcess Air Temperature Controller PV SVIndicator Lit when Control Output 1 is on. The Out1Lit when Control Output 2 is on. Not used in IndicatorSetting the Process Air Temperature IndicatorAdjustment Level IndicatorIndicator NameDescription Entering Operating Parameters to Select ModesSetting the High Dew Point Alarm Process Air Dew Point DisplayOptional 4-2Dryer Operation Procedures Controller OperationAlarm Display Messages HIGH TEMP VALVE MTR HEAT COOL 50 SYSTEM NORMALValve Motor Time-Out Blower Overload No Alarms PROC BLWRChapter 5 Maintenance 5-1Preventative Maintenance ScheduleEvery Day Every week5-2Preventative Maintenance Figure 9 Air Filter Location and DisassemblyServicing Process Air Filters Vacuuming5-3Corrective Maintenance Cleaning with Compressed AirSymptoms of Worn Desiccant 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 Replacing/Cleaning the Cooling Coil Figure 13 Cooling Coil Location and DisassemblyReplacement Procedures 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 PROC BLWR Alarm MessageHIGH TEMP CauseVALVE MTR Using a ThermocoupleAlarm Message Cause7-1Warranty Chapter 7 AppendixWarranty Specifications Warranty Restrictions7-2Technical Specifications Customer ResponsibilitiesAnnex B Information 7-3Drawings and Diagrams Aftercooler Design SpecificationsRegeneration MoistureMake Up Air Exhaust High Pressure Peripheral BlowerFigure 16 Low Heat Model 120F to 250F Air Flow After-Cooler Regeneration MoistureMake Up AirExhaust High Pressure Peripheral Blower7-4Spare Parts List DRYER SPARE PARTS LIST 15, 30, 60 cfm Models15, 30, & 60 cfm Compact Dryers Mechanical Components15, 30, & 60 cfm Compact Dryers HI-COREDESICCANT DRYER 15/30/60 CFM UNITS15, 30, & 60 cfm Compact Dryers 30 CFMDescription 15, 30, & 60 cfm Compact Dryers 60 CFMDescription 15, 30, & 60 cfm Compact Dryers A0571672120V CONTROL COMMON PARTS Description7-5Returned Material Policy Credit Returns7-6Dryer Identification Serial Number Tag 7-7Technical AssistanceWarranty Returns Service DepartmentContract Department 15, 30, & 60 cfm Compact Dryers