Manuals / Sterling / Laundry Appliance / Clothes Dryer

Sterling 30 cfm, 60 cfm Controller Description and Operation, Switches, Indicator Lights

Models: 30 cfm

1 50

Download 50 pages 57.96 Kb

Page 20

Image 20

Chapter 4: Operation

4-1 Controller Description and Operation

Identifying Control Panel Indicator Lights and Switches for the Standard Controller

Switches

Main Power. This switch allows the dryer to receive power from the main power supply (3 phase only).

Dryer Control ON/OFF Switch. This switch energizes or de-energizes control power to the indicator panel and starts the dryer. (The controller cannot be energized without the dryer running.)

Indicator Lights

Alarm Light. This feature warns the operator of a high bed safety temperature, a regeneration heater fault, or a blower failure.

Power On. This light illuminates when the main power switch is on telling the user the dryer is energized.

Dryer Operating: Indicates the process air blower is on.

Figure 5: Dryer Control Panels

Standard Controller – Standard Single Phase Control Panel shown with Optional Dew Point Monitor

15, 30, & 60 cfm Compact Dryers

Page 20

Image 20

Sterling 30 cfm, 60 cfm Controller Description and Operation, Switches, Indicator Lights, Dryer Control Panels

Contents

SDA Series 15, 30, & 60 cfm Compact Dehumidifying Dryers Part Number Bulletin Number DH1-635.3 EffectiveWe are committed to a continuing program of product improvement DCN No CopyrightShipping Information Unpacking and InspectionIn the Event of Shipping Damage If the Shipment is Not CompleteTable of Contents CHAPTER 4 OPERATIONCHAPTER 1 SAFETY CHAPTER 3 INSTALLATIONCHAPTER 7 APPENDIX CHAPTER 5 MAINTENANCECHAPTER 6 TROUBLESHOOTING Safety Symbols Used in this Manual Chapter 1 Safety1-1 How to Use This Manual 1-2 Safety Tag Information 1-3 Warnings and PrecautionsRead Operation and Installation Manual Earth Ground Dryer Safety TagsOperator Responsibility 1-4 ResponsibilityGeneral Responsibility REMEMBER Maintenance Responsibility Reporting a Safety DefectChapter 2 Functional Description 2-1 Models Covered in This Manual2-2 General Description What is desiccant?2-3 Standard Features Figure 1 Typical Dryer Air Flow SchematicMechanical Features Electrical Features2-5 Safety Devices and Interlocks 2-4 OptionsController Features residual heat coming out of the desiccant tank prior toFail Safe Operation Safety Circuit StandardsSafety Device Lock-Outs 3-2 Rigging and Placing the Dryer Chapter 3 Installation3-1 Uncrating the Equipment Note Floor Mounted Dryers can be lifted by hoist or fork lift Figure 2 Suggested Lift Rigging for Cart Mount DryersFigure 3 Suggested Lift Rigging for Floor Mounted Dryers 3-3 Electrical Connections Figure 4 Suggested Lift Rigging for Machine Mounted DryersMaking Dryer/Drying Hopper Process Air Connections Floor Mount Models 3-4 Setup ProceduresChecking for Proper Blower Rotation Three-Phase Models 3-5 Initial Start-up Installing Water LinesCaution! Clean the rust-preventing oil from inside the drying hopper Drying Hopper Air Trap ConsiderationsAuto-Tuning the Dryer Shutting Down the DryerChapter 4 Operation 4-1 Controller Description and OperationSwitches Indicator LightsProcess Air Temperature Controller Figure 6 Typical Process Air Temperature Controller PV SVIdentifying Process Air Temperature Controller LED Indicators IndicatorLit when Control Output 1 is on. The Out1 Lit when Control Output 2 is on. Not used inSetting the Process Air Temperature IndicatorAdjustment Level IndicatorThe PV readout will display the different parameters within each mode Setting the High Dew Point Alarm Restoring the Process Air Dew Point Meter E5CK to Factory SetupProcess Air Dew Point Display Optional4-2 Dryer Operation Procedures Controller OperationAlarm Display Messages Note A change will NOT take effect until step 12-c is doneHIGH TEMP VALVE MTR HEAT COOL 50 SYSTEM NORMALValve Motor Time-Out Blower Overload No Alarms PROC BLWRChapter 5 Maintenance 5-1 Preventative Maintenance ScheduleEvery Day Every week5-2 Preventative Maintenance Recommendations for Cleaning and Replacing FiltersFigure 9 Air Filter Location and Disassembly Servicing Process Air Filters5-3 Corrective Maintenance Cleaning with Compressed AirCaution! DO NOT clean/wash filter with water Symptoms of Worn Desiccant+ FIRST AID + SEE A PHYSICIAN IMMEDIATELY IF IRRITATION PERSISTSWARNING! Handling desiccant material is HAZARDOUS Handle with adequate ventilation Wash hands thoroughly after handlingFigure 10 Desiccant Bed Location and Disassembly Caution! You should properly dispose of any discarded desiccantConsult local disposal regulations for more information Figure 11 Required Desiccant Amounts 13X TypeDisconnect and lock out power before you replace heater elements Figure 12 Process/Regeneration Heater Location and DisassemblyProcedures Replacing the Process/Regeneration HeaterReplacing/Cleaning the Cooling Coil Figure 13 Cooling Coil Location and DisassemblyReplacement Procedures If used as an after-Cooler 3 to 4 GPM @ 85F15, 30, & 60 cfm Compact Dryers 8. Inset the four 10-32 bolts back in place9. Turn the water to the cooling coil back on HIGH TEMP Chapter 6 Troubleshooting6-1 Introduction PROC BLWR Alarm MessageHIGH TEMP Cause6-2 Determining Temperature Controller Errors or Sensor Errors VALVE MTRUsing a Thermocouple Alarm MessageAnnex B Information 7-1 Technical SpecificationsChapter 7 Appendix 7-2 Drawings and Diagrams Aftercooler Design SpecificationsFigure 14 Standard Model 180F to 230F Air Flow Schematic Regeneration MoistureMake Up Air ExhaustFigure 15 High Heat Model 180F to 400F Air Flow Schematic Figure 16 Low Heat Model 120F to 250F Air FlowAfter-Cooler Regeneration MoistureMake Up Air Exhaust High Pressure Peripheral Blower7-3 Spare Parts List Figure 18 Level 1 Spare Parts List Electrical & MechanicalDRYER SPARE PARTS LIST 15, 30, 60 cfm Models Mechanical ComponentsDescription HI-CORE DESICCANT DRYER 15/30/60 CFM UNITS15 CFM Description 15, 30, & 60 cfm Compact Dryers30 CFM Description 15, 30, & 60 cfm Compact Dryers60 CFM 15, 30, & 60 cfm Compact Dryers A053404715, 30, & 60 cfm Compact Dryers 7-5 Returned Material Policy 7-6 Dryer Identification Serial Number TagWarranty Returns Credit Returns7-7 Technical Assistance Service DepartmentParts Department Sales Department