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Sterling 350-2100 CFM installation manual Control Panel Indicator Lights

Models: 350-2100 CFM

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Chapter 4: Control Panel

4-1 Control Panel Indicator Lights

PROCESS BLOWER ON

This indicator lights when the process blower is energized.

PROCESS HEATER ON

This indicator lights when the process air heaters are energized.

HIGH PROCESS AIR TEMPERATURE ALARM

;This indicator lights when the temperature at the process air thermocouple is above the set high alarm value.

;When the indicator lights, the alarm relay is energized and all the heaters turn off while the blowers remain on.

;The alarm mode and value are factory-set to track 25°F above the process setpoint. The alarm value is a deviation above the process setpoint.

;When the temperature at the process thermocouple returns to within the acceptable range, the alarm output is de-energized and all the heaters turn on again automatically.

;The alarm range may be altered - See Section 5-5.

REGEN BLOWER ON

This indicator lights when the regeneration blower is energized.

REGEN HEATER ON

This indicator lights when the regeneration heater is on.

LEFT BED REGENERATING & RIGHT BED REGENERATING

The indicator lit shows which bed is currently being regenerated [off-line].

HIGH DEW POINT ALARM

This indicator lights when the process air delivery dew point exceeds the dew point shift point, as set by the adjustment pot on the control enclosure graphic panel. See Section 5-6.

DIRTY FILTER ALARM

;This indicator lights if the pressure differential across either the process air return filter or the regeneration inlet filter exceeds the pressure switch setting.

;This indicates a filter in need of service.

;The light resets automatically when the filter is serviced.

;The pressure switch is adjustable - See Section 6-4.

LOW PROCESS AIR TEMPERATURE ALARM

;This indicator lights when the temperature at the process air thermocouple is below the set low alarm value.

350-2100 cfm Dryers

Chapter 4: Control Panel

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Sterling 350-2100 CFM installation manual Control Panel Indicator Lights

Contents

SDA Series 350 2100 CFM Large Dehumidifying DryersWrite Down Your Serial Numbers Here For Future Reference Shipping Info Table of Contents Maintenance Safety Symbols Used in this Manual SafetyHow to Use This Manual Safety Tag Information Dryer Safety TagsWear Safety Glasses and Work Gloves Operator Responsibility ResponsibilityGeneral Responsibility Maintenance Responsibility RememberReporting a Safety Defect Typical Features and Components Optional FeaturesFunctional Description Models Covered in This ManualProcess/Regeneration Cycle What is Desiccant?Closed Loop Drying System Cfm Dryers Functional Description TOP View Left Side View Installation Work RulesElectrical Connections 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 ProtocolsStartup Startup, Shutdown & OperationPre-Startup Checks Setting the Process Air Temperature Setting the High and Low Temperature AlarmsTo Change the Process Air High Temperature Alarm Setting ShutdownTemperature Controller Autotune Procedure Temperature Controller Internal SwitchesTemperature Controller Anti-Tamper Lockout Switch Enabling the Lockout FeatureTo Change the Dewpoint Shift Point Setting the Dewpoint Extend Shift PointChanging the Display from Fahrenheit to Centigrade Regeneration Monitoring System Signal Processor LL Setpoint Low Regeneration Alarm Setpoint 130FSetpoint Regeneration Blower Shutdown Temp 160F 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 timeSet the days of the week for automatic operation Setting the stop timePut the timer into Run mode Servicing the Process Air Filters Models MaintenanceFilter Cleaning/Replacement Filter Cleaning/Replacement Servicing the Process Air Filters Models 850 throughServicing the Regeneration Filter Dirty Filter Alarm CalibrationTo Clean the Regeneration Filter To check the dewpoint sensor and dewpoint control board Dewpoint Control System ServiceSymptoms of Worn Out Desiccant 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 LevelsInput Shift SetpointsHysteresis Security Protection Display Refresh Cycle Sensor Input TypeScale Indication Troubleshooting Problem Possible Cause Corrective ActionProblem Possible Cause Corrective Action Problem Possible Cause Corrective Action Warranty Returns AppendixReturned Material Policy Credit ReturnsCfm Dryers Appendix Preventive Maintenance Checklist Dehumidifying Dryers Service Department Technical AssistanceParts Department Sales Department