Sterling 350-2100 CFM installation manual Changing the Display from Fahrenheit to Centigrade

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5-9 Changing the Display from Fahrenheit to Centigrade

To change the display from the factory °F setting to °C:

1.	Disconnect main electrical power to the dryer.
ON
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2.	Press up the latch at the bottom of the control module's front panel and slide out the control chassis.
3.	Locate DIP switch SW201 {FUNCTION} on the right circuit board.
4.	Slide the #5 pin to OFF.
5.	Slide the chassis back into the control module's housing.
6.	Cover the °F label with the °C sticker included in the information packet.

5-10 Setting the Dewpoint Extend Shift Point

1.350 - 2100 cfm dryers shift air flow from the on-line desiccant bed to the regenerated desiccant bed based on actual dewpoint demand, not by fixed time cycles.

2.Set the Dewpoint Shift Point to the highest process air moisture content you would like to allow before the dryer shifts air flow to the regenerated desiccant bed.

3.The Dewpoint Shift Point is set with the dewpoint meter, the Push To Set push-button, and the Dewpoint Shift Adjust potentiometer [pot].

To Change the Dewpoint Shift Point:

1.Carefully loosen the locking hex nut on the Dewpoint Shift adjust pot. The pot is just below the dewpoint meter.

2.Press and hold the Push To Set push-button next to the Dewpoint Shift Adjust pot.

3.With a small screwdriver, adjust the Dewpoint Shift Adjust pot until the dewpoint meter reads the highest acceptable process air dewpoint. This is the point that airflow will be shifted from the on-line bed to the regenerated bed, providing the regeneration cycle has been completed.

4.Release the Push To Set push-button and re-tighten the locking nut on the Dewpoint Shift Adjust pot.

Note: Don't let the adjusting screw move and change the setting.

5. Reconfirm the Dewpoint Shift Point by pressing the Push To Test push-button.

Note: Securely lock the Dewpoint Shift Adjust pot in place with the locknut. An inadvertent change in the pot's setting will cause a change in the Dewpoint Shift Point.

350-2100 cfm Dryers

Chapter 5: Startup, Shutdown & Operation

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Contents SDA Series 350 2100 CFM Large Dehumidifying DryersWrite Down Your Serial Numbers Here For Future Reference Shipping Info Table of Contents Maintenance Safety How to Use This ManualSafety Symbols Used in this Manual Safety Tag Information Dryer Safety TagsWear Safety Glasses and Work Gloves Responsibility General ResponsibilityOperator Responsibility Maintenance Responsibility RememberReporting a Safety Defect Functional Description Typical Features and ComponentsOptional Features Models Covered in This ManualWhat is Desiccant? Closed Loop Drying SystemProcess/Regeneration Cycle Cfm Dryers Functional Description TOP View Left Side View Electrical Connections InstallationWork Rules Check For Proper Blower RotationAftercooler Cooling Water Connection Drying Hopper Air TrapTypical Control Panel Control Panel Indicator Lights Control PanelProcess Blower Failure Alarm Switches and Meters Valve Position ErrorProcess Air Temperature Controller PLC ControlProcess Air Temperature Controller Temperature Controller LED Indicators Process Value Numeric LEDTemperature Controller Keys See in Section Optional Communications Protocols Startup, Shutdown & Operation Pre-Startup Checks Startup To Change the Process Air High Temperature Alarm Setting Setting the Process Air TemperatureSetting the High and Low Temperature Alarms ShutdownTemperature Controller Anti-Tamper Lockout Switch Temperature Controller Autotune ProcedureTemperature Controller Internal Switches Enabling the Lockout FeatureSetting the Dewpoint Extend Shift Point Changing the Display from Fahrenheit to CentigradeTo Change the Dewpoint Shift Point Setpoint Regeneration Blower Shutdown Temp 160F Regeneration Monitoring System Signal ProcessorLL Setpoint Low Regeneration Alarm Setpoint 130F HH Setpoint Heater Cut Off Temp 300FAuxiliary Process Safety System Optional Seven Day Timer OptionalSetting the Current Day of the Week, Hour and Minute Setting the start up timeSetting the stop time Put the timer into Run modeSet the days of the week for automatic operation Maintenance Filter Cleaning/ReplacementServicing the Process Air Filters Models Filter Cleaning/Replacement Servicing the Process Air Filters Models 850 throughDirty Filter Alarm Calibration To Clean the Regeneration FilterServicing the Regeneration Filter Dewpoint Control System Service Symptoms of Worn Out DesiccantTo check the dewpoint sensor and dewpoint control board Desiccant Replacement Procedure First AIDProcess Heater Replacement Procedure Desiccant Amounts RequiredRegeneration Heater Replacement Procedure Spots and lead to premature heater failureRestoring a Temperature Controller to the Factory Setup Switch To select a setting 10F Process Temperature Control Error Messages Regeneration Monitor Signal Processor Error Messages Regeneration Monitor Advanced Programming Moving Between LevelsSetpoints HysteresisInput Shift Security Protection Sensor Input Type Scale IndicationDisplay Refresh Cycle Troubleshooting Problem Possible Cause Corrective ActionProblem Possible Cause Corrective Action Problem Possible Cause Corrective Action Returned Material Policy Warranty ReturnsAppendix Credit ReturnsCfm Dryers Appendix Preventive Maintenance Checklist Dehumidifying Dryers Parts Department Service DepartmentTechnical Assistance Sales Department