Sterling SDAA 25-100 specifications Consult local disposal regulations for more information

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Figure 11: Desiccant Bed Location and Disassembly

Desiccant Cap

13X Molecular Sieve

8x12 Beads

Regeneration Heater

Regeneration

Thermocouple

(2) 4-40 screws

Hi Temperature

Snap Switch

Undo (4) 10-32 Button

Head Screws using 1/8

Allen Wrench

1" Wide x 1/8" Thick Silicon

Strip and Stick Gasket

16 Mesh 0.028 Diameter Wire

Stainless Steel Screen

1" Wide x 1/8" Thick High

Temperature Gasket

Caution! You should properly dispose of any discarded desiccant.

Consult local disposal regulations for more information.

Inspect each lower desiccant screen for tears or holes where desiccant burned-through. Replace as needed.

After cleaning each chamber, add a level layer of half the 8 x 12 bead desiccant on top of the screen. Next, carefully add the full amount of bead desiccant specified per bed. Amounts are listed in the Desiccant Amounts Table below. Smooth the top level, and finally add another layer of the remaining bead desiccant to the top. Make sure this layer is level and smooth.

Repeat the previous step for the other bed.

Inspect the gaskets on the valve assembly. Replace if necessary. Re-install the valve and reconnect actuator wiring.

Figure 12: Required Desiccant Amounts

	Dryer	8 x 12 bead Total
	model	Part no.	lbs.		Kg
	15 cfm	W00018051	4.75		2.15
	30 cfm	W00018051	12.25		5.56
	60 cfm		27.5		12.5
Dehumidifying Dryers	Chapter 5: Maintenance					46 of 59

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Contents Sdaa 25-100 15-60 cfm Dehumidifying Dryers Shipping Information Table of Contents Maintenance Service Department Sales Department Contract Department Safety Symbols Used in this Manual SafetyHow to Use This Manual Wear Safety Glasses and Work Gloves General Responsibility ResponsibilityRemember Operator ResponsibilityReporting a Safety Defect Maintenance ResponsibilityDehumidifying Dryers Safety General Description Functional DescriptionModels Covered in This Manual Electrical Features Standard FeaturesWhat is desiccant? Mechanical FeaturesOptions Safety Devices and InterlocksController Features Fail Safe Operation Safety Circuit StandardsSafety Device Lock-Outs Rigging and Placing the Dryer InstallationUncrating the Equipment Machine-Mount Dryer Dimensions Floor-Mount Dryer Dimensions Recommended Dryer Lifting Hardware Suggested Lift Rigging for Cart Mounted DryersSuggested Lift Rigging for Machine Mounted Dryers Electrical ConnectionsMaking Dryer/Drying Hopper Process Air Connections Setup ProceduresThree-Phase Models Checking for Proper Blower RotationOptional Aftercooler Installing Water Lines Hose and Hose ClampDrying Hopper Air Trap Considerations Starting Up the Dryer Auto-Tuning the DryerInitial Start-up Pre-Startup ChecksShutting Down the Dryer Start-up OperationController Description and Operation SwitchesIndicator Lights Lit when Control Output 2 is on. Not used Process Air Temperature ControllerLit when Control Output 1 is on. The Out1 Setting the Process Air Temperature Indicator Name DescriptionLights in the Operation Indicator Section when Identifying Temperature Controller KeysE5CN Operating Parameters Tuned prior to dryer startup Adjustment Level Indicator Name DescriptionON, OFF Entering Operating Parameters to Select ModesOptional Setting the High Dew Point AlarmProcess Air Dew Point Display Watlow Operating Parameters Redundant Safety Controller DisplaySetting the Redundant Safety Controller 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 Shutting Down the Dryer Auto-Tuning the DryerPhotocopy this page for your maintenance records MaintenancePreventative Maintenance Schedule Vacuuming Preventative MaintenanceRecommendations for Cleaning and Replacing Filters Servicing Process Air FiltersServicing the Dew Point Monitor Cleaning with Compressed AirSymptoms of Worn Desiccant Corrective MaintenanceReplacing Worn Desiccant First AIDConsult local disposal regulations for more information Replacing the Process Heater ProceduresIntroduction TroubleshootingProblem Possible cause Corrective action Problem Possible cause Corrective action Check resin manufacturer’s data Using a Platinum Resistance Thermometer Determining Temperature Controller Errors or Sensor ErrorsUsing a Thermocouple Appendix WarrantyWarranty Specifications Warranty RestrictionsCustomer Responsibilities Warranty LiabilitiesOptional Components Annex B Information Technical SpecificationsAftercooler Design Specifications Drawings and Diagrams Spare Parts ListLevel 2 & 3 Spare Parts List Electrical & Mechanical Returned Material Policy Safety Tag InformationWarranty Returns Dryer Safety TagsLocated on back of Dryer Dryer Identification Serial Number TagSales Department Service DepartmentTechnical Assistance Parts Department