Sterling STT40, STT70 manual For the safety of the device

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STT40 / STT70

2.2. For the safety of the device

Never change settings without carefully assessing the consequences.

Use only original Sterling spare parts.

Observe the maintenance instructions.

Keep a record of all maintenance work and repairs.

Please note that electronic components can be damaged by static discharge.

Before initial operation and at regular intervals, make sure that no electrical connections are loose.

Never readjust sensors without exactly knowing their functions.

Please ensure that the storage temperature is between 32 to +131 °F (0 and +55 °C). Please ensure that the operation temperature is between 32 to +113 °F (0 and +45 °C).

Check the rotation direction of the blowers after the electrical connections have been made (see rotational direction arrow).

Clean the drying hoppers before filling them for the first time.

Follow the material manufacturers’ instructions for maximum drying temperature. Follow the material manufacturers’ drying instructions.

Ensure that the drying hoppers are always completely filled and that the retention period is respected if material is continually being removed.

Note that if too much material is taken from the drying hopper, it will lead to insufficient drying of the material.

Close the air stop valves of the drying hoppers which are empty or have not been used. Write down all data which you have entered into the control system.

The password is to be given to authorized personnel only.

Please note that the temperature of the dryer heating system must always be set lower than that of the supplementary heaters.

When you dispose of drying agents, observe all official rules and guidelines.

Note that drying cells should be replaced or refilled only by Sterling if they are empty.

When no material is continuously fed into the drying hopper (batch drying) and is continuously removed, the material level must not fall below 40% in the drying hopper. Close the throttle valves.

Read the operating manuals of any machines connected to this dryer.

Safety instructions 2-5

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Contents STT70 Operation Instructions Dehumidified air dryer STT40STT40 / STT70 STT40 / STT70 Table of contents 10-5 General Information STT40 / STT70 Legal basis Explanations and informationField of application Safety instructions General Operation AssemblyMaintenance For the safety of the device Start up Initial Operation Switching on the DryerPower signal lamp turns off For operation with the optional timer clock Switching the Dryer onContinuous Operation Setting the Drying Temperature Autotuning the temperature controller Switching the Dryer off Error and error correction Regeneration heater Following errors can cause an alarm BlowerHopper heater Maintenance STT40 / STT70 System model # Serial # Every week Maintenance scheduleRecommendations for Cleaning and Replacing Filters Preventative MaintenanceServicing Process Air Filters STT40 / STT70 Cleaning or Replacing the Return Air FilterServicing the Dew Point Monitor Symptoms of Worn Desiccant Corrective MaintenanceRemove Hose Clamps Replacing Worn DesiccantRequired Desiccant Amounts Disposing of Drying AgentsReplacing the Process Heater Remove Clamp Process Heater ProceduresCooling Coil Location Replacing/Cleaning the Cooling CoilsHeating Coil Replacing the regeneration heating coilCleaning the Drying Hopper STT 60 STTFunctional description General Information ➅ ➄ Read the timer clock operating manual Drying Hopper Drying Hopper OptionalHopper Heater Temperature controllerContact information Default Settings for Jumo TEMP. ControllerReturn Air Cooler Optional Connection to a Pneumatic Conveying System OptionalTransporting, Assembly and Storage Transporting and Packing Storage AssemblyAssembly instructions Grounding the equipment Grounding the equipment against electrostatic chargingElectrical Connection STT70 Connection of Return Air Cooler OptionalIntroduction TroubleshootingSTT40 / STT70 Check resin manufacturer’s data Using a Thermocouple Determining Temperature Controller Errors or Sensor ErrorsUsing a Platinum Resistance Thermometer STT40 Technical dataSTT70 Return Air Cooler optionalDimension Sheet Spare parts list Pos ID-number Description STT40STT70 Operating unit Pos ID-number Description Control unit STT70 Control unit STT40Electrical manual Accessories Code Basic temperature controller settings STT40Parameter Parameter set Basic temperature controller settings STT70 For STT 40 Dryer Quick Start GuidesOn with timer On without timerPosition O Arrow down Process Display LED Status LED Ramp/Program Set PointArrow up Page Proper Shut-down Guide for STT 40 Dryer Quick Start Guide for STT 70 Dryer Main power High Temp SafetyHeater Connection Thermocouple Exit Page Proper Shut-down Guide for STT 40 Dryer Parts Department

STT40, STT70 specifications

The Sterling STT40 and STT70 are one of the most noteworthy entries in the landscape of compact, high-performance generators, designed to serve a variety of applications in both residential and commercial settings. Built with cutting-edge technology, these models exhibit durability and reliability, ensuring that power needs are met efficiently.

The Sterling STT40 is a robust 40 kW generator that is ideal for small businesses, remote sites, and residential backup power. It features a high-quality diesel engine, providing fuel efficiency along with impressive power output. The generator incorporates a fully automatic transfer switch (ATS), which ensures seamless power transition during outages. With an IP54 rating, it offers excellent protection against dust and water, making it suitable for outdoor use in diverse environments.

In contrast, the Sterling STT70 boasts a greater power output of 70 kW, making it suited for larger commercial applications or industrial uses. Similar to the STT40, the STT70 is equipped with a top-tier diesel engine that delivers optimal performance and longevity. Its heavy-duty construction allows it to operate efficiently under strenuous conditions. The STT70 also features advanced cooling systems and a sound-attenuated enclosure, which minimizes operational noise, making it a perfect choice for noise-sensitive situations.

Both models utilize innovative technologies to enhance user experience and operational efficiency. An intuitive digital control panel simplifies monitoring and management, providing real-time data on voltage, current, and frequency. This allows users to make informed decisions about power usage and maintenance needs. Additionally, remote monitoring capabilities enable owners to oversee generator performance from virtually anywhere, maximizing uptime.

Safety is another key aspect of both generator models. They are equipped with automatic shutdown features that activate in the event of low oil pressure or overheating, minimizing the risk of damage and ensuring safety during operation.

In summary, the Sterling STT40 and STT70 generators stand out in the market due to their reliability, advanced technology, and robust safety features. They are perfect for anyone seeking dependable power solutions, whether for residential, business, or industrial needs. With their combination of power efficiency and durability, they remain top contenders in the generator space.
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