Sterling SDAA 25-100 specifications Maintenance

Page 4

 

Restoring the Process Air Temperature Controller (E5CN) to Factory Settings..28

 

Process Air Dew Point Display

31

 

Setting the High Dew Point Alarm

31

 

Restoring the Process Air Dew Point Meter (E5CK) to Factory Setup

31

 

Redundant Safety Controller Display

32

 

Setting the Redundant Safety Controller

32

 

Restoring the WATLOW Redundant Safety Controller to Factory Setup

32

4-3

Dryer Operation Procedures

34

 

Controller Operation (Without Optional Alarm Horn & Reset Button)

34

 

Controller Operation (With Optional Alarm Horn & Reset Button)

37

 

Alarm Display Messages

39

4-4

Auto-Tuning the Dryer

40

4-5 Shutting Down the Dryer

40

CHAPTER 5: MAINTENANCE

41

5-1

Preventative Maintenance Schedule

41

5-2

Preventative Maintenance

42

 

Servicing Process Air Filters

42

 

Servicing the Dew Point Monitor

43

5-3

Corrective Maintenance

44

 

Symptoms of Worn Desiccant

44

 

Replacing Worn Desiccant

45

 

Replacing the Process Heater

47

CHAPTER 6: TROUBLESHOOTING

48

6-1

Introduction

48

6-2 Determining Temperature Controller Errors or Sensor Errors

51

 

Using a Thermocouple

51

 

Using a Platinum Resistance Thermometer

51

CHAPTER 7: APPENDIX

52

7-1

Warranty

52

 

Warranty Specifications

52

 

Warranty Restrictions

52

 

Warranty Liabilities

53

 

Customer Responsibilities

53

7-2

Optional Components

53

7-3

Technical Specifications

54

 

Annex B Information

54

 

Aftercooler Design Specifications

55

7-4

Drawings and Diagrams

55

7-5

Spare Parts List

55

7-6

Returned Material Policy

57

 

Credit Returns

57

 

Warranty Returns

57

7-7

Safety Tag Information

57

 

Dryer Safety Tags

57

7-8 Dryer Identification (Serial Number) Tag

58

7-9

Technical Assistance

59

 

Parts Department

59

Dehumidifying Dryers

iii

Image 4
Contents Sdaa 25-100 15-60 cfm Dehumidifying Dryers Shipping Information Table of Contents Maintenance Service Department Sales Department Contract Department How to Use This Manual SafetySafety Symbols Used in this Manual Wear Safety Glasses and Work Gloves Responsibility General ResponsibilityOperator Responsibility RememberMaintenance Responsibility Reporting a Safety DefectDehumidifying Dryers Safety Models Covered in This Manual Functional DescriptionGeneral Description Standard Features What is desiccant?Mechanical Features Electrical FeaturesController Features Safety Devices and InterlocksOptions Safety Device Lock-Outs Safety Circuit StandardsFail Safe Operation Uncrating the Equipment InstallationRigging and Placing the Dryer Machine-Mount Dryer Dimensions Floor-Mount Dryer Dimensions Suggested Lift Rigging for Cart Mounted Dryers Recommended Dryer Lifting HardwareElectrical Connections Suggested Lift Rigging for Machine Mounted DryersSetup Procedures Three-Phase ModelsChecking for Proper Blower Rotation Making Dryer/Drying Hopper Process Air ConnectionsDrying Hopper Air Trap Considerations Installing Water Lines Hose and Hose ClampOptional Aftercooler Auto-Tuning the Dryer Initial Start-upPre-Startup Checks Starting Up the DryerShutting Down the Dryer Operation Start-upIndicator Lights SwitchesController Description and Operation Lit when Control Output 1 is on. The Out1 Process Air Temperature ControllerLit when Control Output 2 is on. Not used Indicator Name Description Lights in the Operation Indicator Section whenIdentifying Temperature Controller Keys Setting the Process Air TemperatureE5CN Operating Parameters Adjustment Level Indicator Name Description Tuned prior to dryer startupEntering Operating Parameters to Select Modes ON, OFFProcess Air Dew Point Display Setting the High Dew Point AlarmOptional Setting the Redundant Safety Controller Redundant Safety Controller DisplayWatlow Operating Parameters Mode Parameter Setting range Default Manf. setting Dryer Operation Procedures Model Heating Cooling 15 cfm 30 cfm 60 cfm Page Controller Operation With Optional Alarm Horn & Reset Button Page Alarm Display Messages Auto-Tuning the Dryer Shutting Down the DryerPreventative Maintenance Schedule MaintenancePhotocopy this page for your maintenance records Preventative Maintenance Recommendations for Cleaning and Replacing FiltersServicing Process Air Filters VacuumingCleaning with Compressed Air Servicing the Dew Point MonitorCorrective Maintenance Symptoms of Worn DesiccantFirst AID Replacing Worn DesiccantConsult local disposal regulations for more information Procedures Replacing the Process HeaterProblem Possible cause Corrective action TroubleshootingIntroduction Problem Possible cause Corrective action Check resin manufacturer’s data Using a Thermocouple Determining Temperature Controller Errors or Sensor ErrorsUsing a Platinum Resistance Thermometer Warranty Warranty SpecificationsWarranty Restrictions AppendixOptional Components Warranty LiabilitiesCustomer Responsibilities Technical Specifications Annex B InformationDrawings and Diagrams Spare Parts List Aftercooler Design SpecificationsLevel 2 & 3 Spare Parts List Electrical & Mechanical Safety Tag Information Warranty ReturnsDryer Safety Tags Returned Material PolicyDryer Identification Serial Number Tag Located on back of DryerService Department Technical AssistanceParts Department Sales Department