Manuals / Sterling / Household Appliance / Dehumidifier

Sterling manual Control unit STT40, Hopper heater, Control unit STT70

Models: STT40 STT70

1 76

Download 76 pages 12.33 Kb

Page 62

Image 62

STT40 / STT70

Control unit STT40

85280	motor
84131	radiator 0.7 kW
83339	pull-button
87440	contact element
83411	controller
82516	temperature limiter
88440	contactor
85941	terminal
85940	fuse
99102	fuse
88806	relay holder
88816	relay
84510	thermal breaker

Hopper heater

85688 radiator 1,5 kW

85652 safety temperature limiter

Control unit STT70

85279	motor
85676	radiator 1.2 kW
95816	pull-button
87440	contact element
83329	controller
85275	temperature limiter
88914	contactor
85254	power supply
88907	terminal
99815	fuse
88806	relay holder
88849	relay
83624	terminal
84512	thermal breaker
84159	control switch

Hopper heater

85343 radiator 1,5 kW

84512 thermal breaker

85652 safety temperature limiter (= STB)

85338 radiator 3 kW

84510 thermal breaker

85652 STB

Spare parts list 11-5

Page 62

Image 62

Sterling manual Control unit STT40, Hopper heater, Control unit STT70

Contents

Sterling Material Processing Operation InstructionsDehumidified air dryer STT40 STT70 5200 West Clinton Ave Milwaukee, WI Technical service Service departmentSterling Material Processing TelephoneSTT40 / STT70 Table of contents STT40 / STT70 1. General Information 1.1. Warnings and symbolsCaution High noise pollution 1.4. Field of application 1.2. Explanations and information1.3. Legal basis 1.5. Notes on UsageSTT40 / STT70 2. Safety instructionsSafety instructions 2.1 General 2.1.1. Assembly 2.1.2. Operation2.1.3. Maintenance 2.2. For the safety of the device Start up 3. Start upSTT40 / STT70 3.1.1. Switching on the Dryer 3.1. Initial OperationThe “power” signal lamp turns off Wait until the blower has stoppedFor operation without timer clock 3.2.1. Switching the Dryer onFor operation with the optional timer clock 3.2. Continuous Operation3.2.2. Setting the Drying Temperature Press the “EXIT” key for at least 2 seconds Autotuning the temperature controllerIf “tunE” stops flashing, Autotuning is finished Press the “EXIT” keyWait until the blower has stopped 3.3. Switching the Dryer offThe “power” signal lamp turns off STT40 / STT70 4. Error and error correctionError and error correction Regeneration heater The following errors can cause an alarm BlowerRegeneration heater Hopper heater5. Maintenance Please observe the maintenance schedule System model # 5.1. Maintenance schedulePhotocopythis page for your maintenance records Serial #5.2. Preventative Maintenance 5.2.1. Servicing Process Air Filterswhen operating without return air cooler ID Figure 1 Air Filter Location & DisassemblyDO NOT clean/wash filter with water when operating with return air cooler ID5.2.3. Servicing the Dew Point Monitor The sensor will be destroyedFIRST AID 5.3. Corrective Maintenance5.3.1. Symptoms of Worn Desiccant DESICCANT BEDS ARE HOT DURING OPERATION Figure 2 Desiccant Bed Location and Disassembly5.3.2. Replacing Worn Desiccant Remove Hose Clamps Remove Clamp5.4. Disposing of Drying Agents Figure 3 Required Desiccant AmountsFigure 4 Process Heater Location and Disassembly 5.5. Replacing the Process HeaterHazardous electrical current present 5.5.1.Replacing/Cleaning the Cooling CoilsFigure 5 Cooling Coil Location and Disassembly Hazardous electrical current present Figure 6 Heating Coil Location and Disassembly5.5.2. Replacing the regeneration heating coil Heating Coil5.6. Cleaning the Drying Hopper STT Figure 7 STTFigure 8 STT 60 - STT Functional description 6. Functional descriptionSTT40 / STT70 6.1. General Information The dryer is rated for continuous operationFigure 9 Functional diagram of STT40 / STT70 ➅➄ ➃Read the timer clock operating manual Figure 10 Operating unit6.2. Drying Hopper Optional Figure 11 Drying HopperFigure 12 Temperature controller 6.2.1. Hopper HeaterPARAMETERS THAT ARE NOT CHANGED FACTORY DEFAULTS DEFAULT SETTINGS FOR JUMO TEMP. CONTROLLERPARAMETERS THAT ARE CHANGED IN TESTING AREA Contact information6.4. Return Air Cooler Optional Figure 13 Suction BoxSTT40 / STT70 7. Transporting, Assembly and StorageTransporting, Assembly and Storage 7.1. Transporting and Packing 7.2. Assembly 7.3. Storage8. Assembly instructions 8.1.Installation of the exhaust fan for regeneration of exhaust The fuse protection must have STT40 16 A 8.3. Electrical ConnectionSTT40 max. 1.1 kW, STT70 max. 2.0 kW STT70 16 A8.4. Connection of Return Air Cooler Optional 9.1. Introduction 9. TroubleshootingProblem Possible causePossible cause ProblemProcess heaters are faulty Corrective actionCorrective action ProblemPossible cause Problem Using a ThermocoupleUsing a Platinum Resistance Thermometer Possible cause10.2. STT70 10. Technical data10.1. STT40 Return Air Cooler optional10.3. Dimension Sheet STT40 / STT70 11. Spare parts listSpare parts list Description STT40ID-number Return air cooler optionalDescription STT70ID-number Return air cooler optionalDescription Operating unitID-number Control unit STT70 Control unit STT40Hopper heater Hopper heaterElectrical manual 12. Electrical manualSTT40 / STT70 STT40 / STT70 13. AccessoriesAccessories Parameter Basic temperature controller settings STT40Code Parameter setParameter Basic temperature controller settings STT70Code Parameter set14. Quick Start Guides 14.1. for STT 40 Dryer5.Turn the hopper heater switch to position “I” On without timerOFF On with timer Position “O” Position “I”EXIT Arrow up Set Point PGM Arrow downProcess Display LED “Status” LED Ramp/Program Note Due to the following circumstancesPage 14.2.Proper Shut-downGuide for STT 40 Dryer Position “O” Position “I” OFFMain power High Temp Safety On without timerOFF On with timer 14.3. Quick Start Guide for STT 70 DryerSet Point PGM Arrow down EXITPosition “O” Position “I” Process Display LED “Status” LED Ramp/ProgramNote Due to the following circumstances initial dryer start-up14.4. Proper Shut-downGuide for STT 40 Dryer Position “O” Position “I” OFFSales Department Service DepartmentParts Department Contract Department