Sterling 350-2100 CFM

350-2100 cfm Dryers Chapter 4: Control Panel 24 of 58

Figure 6: Process Air Temperature Controller

Contents

Main Page Shipping Info Table of Contents CHAPTER 1: SAFETY................................................................6 CHAPTER 2: FUNCTIONAL DESCRIPTION...........................12 CHAPTER 3: INSTALLATION..................................................17 CHAPTER 4: CONTROL PANEL.............................................20 CHAPTER 6: MAINTENANCE .................................................35 Chapter 1: Safety 1-1 How to Use This Manual DANGER! Page 1-3 Warnings and Precautions 1-4 Responsibility Page 1-5 Responsibility Chapter 2: Functional Description 2-1 Models Covered in This Manual 2-2 General Description 2-3 Typical Features and Components 2-4 Optional Features 2-5 The Closed Loop Drying System Figure 1: WD/SDA/CDA 350-2100 Dryer Specifications 2-6 What is Desiccant? 2-7 The Process/Regeneration Cycle 2-8 Specifying a Drying System Figure Two: Airflow Diagram 350-2100 cfm Dryers Chapter 2: Functional Description 15 of 58 Figure 3: Dryer Dimensions D REAR VIEW E ? A B C LEFT WD Dryer Dimensions SIDE VIEW Specifications May Change Without Notice Model A B C D E F G H I Chapter 3: Installation 3-1 Work Rules 3-2 Electrical Connections 3-3 Check For Proper Blower Rotation 3-5 Aftercooler Cooling Water Connection 3-6 Drying Hopper Air Trap 350-2100 cfm Dryers Chapter 3: Installation 19 of 58 Figure 5: Typical Control Panel Chapter 4: Control Panel 4-1 Control Panel Indicator Lights ; When the temperature at the process thermocouple returns to within the acceptable Page 4-2 Switches and Meters 4-3 PLC Control 4-4 Process Air Temperature Controller Page Page Page Chapter 5: Startup, Shutdown & Operation 5-1 Pre-Startup Checks Note: 5-2 Startup 5-3 Shutdown 5-4 Setting the Process Air Temperature 5-5 Setting the High and Low Temperature Alarms 5-6 Temperature Controller Autotune Procedure 5-7 Temperature Controller Internal Switches 5-8 Temperature Controller Anti-Tamper Lockout Switch 5-9 Changing the Display from Fahrenheit to Centigrade 5-10 Setting the Dewpoint Extend Shift Point 5-11 Regeneration Monitoring System Signal Processor 5-12 Auxiliary Process Safety System (Optional) 5-13 Seven Day Timer (Optional) Page Page Chapter 6: Maintenance 6-1 Servicing the Process Air Filters (Models 350-700) 6-2 Filter Cleaning/Replacement 6-3 Servicing the Process Air Filters (Models 850 through 2100) 6-4 Servicing the Regeneration Filter 6-5 Dirty Filter Alarm Calibration 6-6 Dewpoint Control System Service To check the dewpoint sensor and dewpoint control board: 6-7 Symptoms of Worn Out Desiccant 6-8 Desiccant Replacement Procedure Figure 6: Desiccant Amounts Required 6-9 Process Heater Replacement Procedure 6-10 Regeneration Heater Replacement Procedure 6-11 Restoring a Temperature Controller to the Factory Setup Page . 10F 0 90.0 Seconds 20 Seconds 1 20 Seconds Figure 8: Process Temperature Control Error Messages [FLASHES] c Figure 9: Regeneration Monitor Signal Processor Error Messages 6-12 Regeneration Monitor Advanced Programming Level 0 Level 1 Level 2 LL Set Value Low Regen Temp Alarm L Set Value Regen Blower Shutdown Temp Setpoints Hysteresis Input Shift Security Protection Page Chapter 7: Troubleshooting Page Page Chapter 8: Appendix 8-1 Returned Material Policy Page Preventive Maintenance Checklist Dehumidifying Dryers 8-2 Technical Assistance 2900 S. 160th Street New Berlin, WI 53151 www.sterlco.com