Sterling SDAA 25-100 specifications Preventative Maintenance Schedule

Page 42

Chapter 5: Maintenance

5-1 Preventative Maintenance Schedule

The checklist below contains a list of items which should be inspected and/or replaced to keep your Dehumidifying Dryer operating at peak efficiency. Perform each inspection at the regular intervals listed below.

System model #

Serial #

Every week

Date/

Date/

Date/

Date/

Date/

Date/

Date/

Date/

Date/

Date/

Date/

Date/

Date/

By

By

By

By

By

By

By

By

By

By

By

By

By

Inspect all filters for

wear, replace/

clean if dirty or

worn.

Check to make

sure that all hose

conections are

air tight.

Every month

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Lock out electrical

power and inspect

electrical wiring for

integrity.

Lock out electrical

power and check

heater elements for

continuity using an

ohmmeter.

Check dew point

and temperature

tracking with an

external dew point

monitor and

pyrometer.

Visually inspect the

shifting of the

airflow valve during

one cycle.

Every year

Next scheduled

Actual inspection

Next scheduled

Actual inspection

inspection

Date/By

inspection

Date/By

Inspect desiccant. Replace

if brown or broken.

Every two years

Scheduled

Actual replacement

Scheduled

Actual replacement

replacement date

Date/Work done by

replacement date

Date/Work done by

Replace desiccant.

- Photocopy this page for your maintenance records -

Dehumidifying Dryers

Chapter 5: Maintenance

41 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 How to Use This ManualSafety Symbols Used in this Manual Wear Safety Glasses and Work Gloves Responsibility General ResponsibilityOperator Responsibility RememberMaintenance Responsibility Reporting a Safety DefectDehumidifying Dryers Safety Functional Description Models Covered in This ManualGeneral Description Mechanical Features Standard FeaturesWhat is desiccant? Electrical FeaturesSafety Devices and Interlocks Controller FeaturesOptions Safety Circuit Standards Safety Device Lock-OutsFail Safe Operation Installation Uncrating the EquipmentRigging and Placing the Dryer Machine-Mount Dryer Dimensions Floor-Mount Dryer Dimensions Suggested Lift Rigging for Cart Mounted Dryers Recommended Dryer Lifting HardwareElectrical Connections Suggested Lift Rigging for Machine Mounted DryersChecking for Proper Blower Rotation Setup ProceduresThree-Phase Models Making Dryer/Drying Hopper Process Air ConnectionsInstalling Water Lines Hose and Hose Clamp Drying Hopper Air Trap ConsiderationsOptional Aftercooler Pre-Startup Checks Auto-Tuning the DryerInitial Start-up Starting Up the DryerShutting Down the Dryer Operation Start-upSwitches Indicator LightsController Description and Operation Process Air Temperature Controller Lit when Control Output 1 is on. The Out1Lit when Control Output 2 is on. Not used Identifying Temperature Controller Keys Indicator Name DescriptionLights in the Operation Indicator Section when Setting the Process Air TemperatureE5CN Operating Parameters Adjustment Level Indicator Name Description Tuned prior to dryer startupEntering Operating Parameters to Select Modes ON, OFFSetting the High Dew Point Alarm Process Air Dew Point DisplayOptional Redundant Safety Controller Display Setting the Redundant Safety ControllerWatlow Operating Parameters 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 Auto-Tuning the Dryer Shutting Down the DryerMaintenance Preventative Maintenance SchedulePhotocopy this page for your maintenance records Servicing Process Air Filters Preventative MaintenanceRecommendations for Cleaning and Replacing Filters VacuumingCleaning with Compressed Air Servicing the Dew Point MonitorCorrective Maintenance Symptoms of Worn DesiccantFirst AID Replacing Worn DesiccantConsult local disposal regulations for more information Procedures Replacing the Process HeaterTroubleshooting Problem Possible cause Corrective actionIntroduction Problem Possible cause Corrective action Check resin manufacturer’s data Determining Temperature Controller Errors or Sensor Errors Using a ThermocoupleUsing a Platinum Resistance Thermometer Warranty Restrictions WarrantyWarranty Specifications AppendixWarranty Liabilities Optional ComponentsCustomer Responsibilities Technical Specifications Annex B InformationDrawings and Diagrams Spare Parts List Aftercooler Design SpecificationsLevel 2 & 3 Spare Parts List Electrical & Mechanical Dryer Safety Tags Safety Tag InformationWarranty Returns Returned Material PolicyDryer Identification Serial Number Tag Located on back of DryerParts Department Service DepartmentTechnical Assistance Sales Department