Sterling STT70, STT40 manual Electrical Connection

Page 50

STT40 / STT70

8.3. Electrical Connection

￿The electrical connection of the dryer and the hopper heaters may only be done by Sterling service staff or by qualified staff authorized by Sterling.

Other persons are not permitted to perform any electrical connection.

Observe the rules of the state and local electricity board. The main power switch must be freely accessible.

Ground the equipment against electrostatic charging.

The serial tag lists voltage, phase, and amp draw information:

Line voltage must be within plus or minus ten percent (±10%) of the voltage listed on the serial tag, or damage may occur. Phase imbalance must be less than two percent (2%).

Connect main power to the dryer at the disconnect or terminals in the lower position of the control enclosure.

Install a fused disconnect with a lockout feature in the power main leading to the dryer.

)On a regular basis, make sure that none of the electrical or screw connections become loose.

Ensure that the main power switch is at the “0" position before carrying out any electrical connection.

The operating voltage is STT40: 230/1/60 STT70: 480/3/60.

Special voltages can be supplied on request. The connected loads* are

STT40 max. 1.1 kW, STT70 max. 2.0 kW.

*If hopper heaters are installed, the value of each hopper heater must be added to these connected loads (STT40: max. 1.5 kW, STT70: max. 3.0 kW).

The fuse protection must have STT40 16 A,

STT70 16 A.

Assembly instructions 8-3

Page 49 Page 51
Image 50
Page 49 Page 51
Contents Operation Instructions Dehumidified air dryer STT40 STT70STT40 / STT70 STT40 / STT70 Table of contents 10-5 General Information STT40 / STT70 Field of application Explanations and informationLegal basis Safety instructions General Assembly OperationMaintenance For the safety of the device Start up Switching on the Dryer Initial OperationPower signal lamp turns off Continuous Operation Switching the Dryer onFor operation with the optional timer clock Setting the Drying Temperature Autotuning the temperature controller Switching the Dryer off Error and error correction Hopper heater Following errors can cause an alarm BlowerRegeneration heater Maintenance STT40 / STT70 Maintenance schedule System model # Serial # Every weekServicing Process Air Filters Preventative MaintenanceRecommendations for Cleaning and Replacing Filters Cleaning or Replacing the Return Air Filter STT40 / STT70Servicing the Dew Point Monitor Corrective Maintenance Symptoms of Worn DesiccantReplacing Worn Desiccant Remove Hose ClampsDisposing of Drying Agents Required Desiccant AmountsRemove Clamp Process Heater Procedures Replacing the Process HeaterReplacing/Cleaning the Cooling Coils Cooling Coil LocationReplacing the regeneration heating coil Heating CoilCleaning the Drying Hopper STT STT 60Functional description General Information ➅ ➄ Read the timer clock operating manual Drying Hopper Optional Drying HopperTemperature controller Hopper HeaterDefault Settings for Jumo TEMP. Controller Contact informationConnection to a Pneumatic Conveying System Optional Return Air Cooler OptionalTransporting, Assembly and Storage Transporting and Packing Assembly StorageAssembly instructions Grounding the equipment against electrostatic charging Grounding the equipmentElectrical Connection Connection of Return Air Cooler Optional STT70Troubleshooting IntroductionSTT40 / STT70 Check resin manufacturer’s data Using a Platinum Resistance Thermometer Determining Temperature Controller Errors or Sensor ErrorsUsing a Thermocouple STT70 Technical dataSTT40 Return Air Cooler optionalDimension Sheet Spare parts list STT40 Pos ID-number DescriptionSTT70 Operating unit Pos ID-number Description Control unit STT40 Control unit STT70Electrical manual Accessories Parameter Parameter set Basic temperature controller settings STT40Code Basic temperature controller settings STT70 Quick Start Guides For STT 40 DryerPosition O On without timerOn with timer Arrow up Set PointArrow down Process Display LED Status LED Ramp/Program Page Proper Shut-down Guide for STT 40 Dryer Heater Connection Thermocouple Main power High Temp SafetyQuick Start Guide for STT 70 Dryer 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.
Top Page Image Contents