Sterling 882.00291.00 specifications Dryer Operation Procedures, Controller Operation

Page 26

Note: The dew point alarm monitors and indicates a deviation from the set point.

4-2 Dryer Operation Procedures

Controller Operation

1.Turn the disconnect (if applicable) on the control panel to the ON position. Power is applied to the voltage line fuses, line side of the control power switch.

2.Turn the control power switch to the ON position. Power is applied to the temperature control, programmable relay and dew point controller. The valve will move to the start position as follows:

a.The valve motor rotates until the cam switch makes 2 transitions.

b.If the cam switch does not make a transition within 10 seconds, a valve motor fault is generated. “VALVE MTR” is displayed on the relay screen, the alarm light is activated. The valve motor, heaters, and blower shut off.

To restart the dryer, cycle control power to deactivate the alarm light and restart the valve motor sequence.

Note: The relay screen which contains the Alarm Display Messages is located inside the controller enclosure. For a list of Alarm Display Messages, see Page 32.

WARNING! Do not attempt to check the Alarms on the Controller located within the unit enclosure unless you are a qualified electrician!

c.The valve will normally complete one full cycle (revolution).

If the drying process shuts down due to an alarm, the dryer has been setup to have the following operational features:

•The bed in process at power-down will remain in process.

•The bed in regeneration at power-down will remain in regeneration.

•The regeneration timing cycle will restart from the beginning.

3.Once the control power is on and no fault conditions exist, the dryer will start as follows:

a.The process/regen blower is started.

b.The process heater is turned on and controlled by the E5CN controller.

c.The regen heater is turned on and the regeneration timing sequence is initiated. For default timing settings for regeneration, see the table below.

Model

Heating

Cooling

15 cfm

15

50

30 cfm

 

 

60 cfm

15

50

15, 30, & 60 cfm Compact Dryers

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Contents SDA Series 15, 30, & 60 cfm Compact Dehumidifying Dryers Event of Shipping Damage Shipping InformationUnpacking and Inspection If the Shipment is Not CompleteTable of Contents Maintenance Safety Symbols Used in this Manual SafetyHow to Use This Manual Safety Tag Information Wear Safety Glasses and Work GlovesOperator Responsibility ResponsibilityGeneral Responsibility Remember Maintenance Responsibility Reporting a Safety DefectGeneral Description Functional DescriptionModels Covered in This Manual Electrical Features Standard FeaturesMechanical Features Options Safety Devices and InterlocksController Features Fail Safe Operation Safety Circuit StandardsSafety Device Lock-Outs Rigging and Placing the Dryer InstallationUncrating the Equipment Suggested Lift Rigging for Cart Mount Dryers Electrical Connections Suggested Lift Rigging for Machine Mounted DryersSetup Procedures Checking for Proper Blower Rotation Three-Phase ModelsDrying Hopper Air Trap Considerations Installing Water LinesInitial Start-up Optional AftercoolerAuto-Tuning the Dryer Shutting Down the DryerOperation SwitchesIndicator Lights Controller Description and OperationProcess Air Temperature Controller Indicator Name Description Lit when Control Output 1 is on. The Out1Lit when Control Output 2 is on. Not used Lights in the Operation Indicator Section whenE5CN Operating Parameters Setting the Process Air TemperatureAdjustment Level Indicator Name Description Entering Operating Parameters to Select Modes Optional Setting the High Dew Point AlarmProcess Air Dew Point Display Dryer Operation Procedures Controller OperationAlarm Display Messages High Temp Valve MTR Maintenance Preventative Maintenance ScheduleServicing Process Air Filters Preventative MaintenanceRecommendations for Cleaning and Replacing Filters VacuumingSymptoms of Worn Desiccant Corrective MaintenanceCleaning with Compressed Air Servicing the Dew Point Monitor+ First AID + Replacing Worn DesiccantDesiccant Bed Location and Disassembly Procedures Replacing the Process/Regeneration HeaterReplacing/Cleaning the Cooling Coil Replacement ProceduresPage Troubleshooting IntroductionProc Blwr Determining Temperature Controller Errors or Sensor Errors Using a ThermocoupleTechnical Specifications AppendixDrawings and Diagrams Aftercooler Design SpecificationsHigh Heat Model 180F to 400F Air Flow Schematic Spare Parts List Level 1 Spare Parts List Electrical & MechanicalHI-CORE Desiccant Dryer 15/30/60 CFM Units 30 CFM 60 CFM 120V Control Common Parts 220V Control Common Parts Returned Material Policy Dryer Identification Serial Number TagParts and Service Department Parts Department Service DepartmentTechnical Assistance Sales Department
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882.00291.00 specifications

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