Chapter 5: Operation

5-1 Pre-Startup Checks

1.Verify that the drying hopper is clean of rust-prohibitive oil or any foreign objects.

2.Verify that process and return hose connections are tight.

3.If your dryer has a water-cooled aftercooler, make sure that sufficient cooling water flows properly through the coil and that you have bled any trapped air from the system. Make sure that the aftercooler has the proper supply water temperature.

4.Check all companion equipment, such as the sight glass loader and drying hopper loader; verify that all convey tubing is in place and the loading system is ready for operation.

5.Verify that all electrical connection are tight and the unit is properly grounded.

6.With main power on, turn the dryer on until the process blower starts, verify blower rotation.

Important! Clean the rust-preventing oil from inside the drying hopper. Failure to clean the hopper fouls the desiccant and voids your warranty!

5-2 Startup

1.Turn on (energize) the disconnect switch in your power drop.

2.Turn the system ON/OFF switch to ON to energize the display panel.

3.Close the slidegate at the bottom of the drying hopper.

4.On three-phase models, make sure that the blowers turn in the right direction.

5.Fill the drying hopper with material.

6.Turn the DRYER ON/SEQUENCE SHUTDOWN switch to ON to start the dryer.

7.The process blower will start.

8.Set the process set point on the temperature controller to the recommend drying temperature provided by the resin manufacturer. Press and hold the Auto-Tune key on the process temperature controller for two (2) seconds to initiate the auto-tune function.

9.After the proper pre-drying time for the initial hopper fill has elapsed, fully open the drying hopper slide gate.

Note: To allow proper residence time during continuous processing, maintain the material level in the hopper at the midpoint of the air trap assembly.

5-3 Shutdown

1.Turn off the conveying system supplying the drying hopper.

2.When processing is complete, close the hopper slide gate and shut down any in-line companion equipment, such as the aftercooler.

3.Turn the dryer ON/OFF selector switch to the SEQUENCE SHUTDOWN position. The sequence shutdown operation turns off process heaters and keeps the process blower on for

Cabinet Series Dehumidifying Dryer

33

Page 33 Page 35
Page 34
Image 34
Sterling 90-225 CFM, SDA 150-380 installation manual Operation, Pre-Startup Checks, Shutdown
Page 33 Page 35

SDA 150-380, 90-225 CFM specifications

The Sterling 90-225 CFM and SDA 150-380 series represent cutting-edge advancements in air compressor technology, designed for a wide range of industrial applications. Known for their reliability, efficiency, and superior performance, these units are essential tools for professionals seeking high-quality compressed air solutions.

One of the standout features of the Sterling 90-225 CFM series is its impressive flow rate. With a capacity range of 90 to 225 cubic feet per minute, these compressors offer ample airflow to power pneumatic tools and equipment while maintaining optimal pressure levels. The durability of the components used in the construction of this series ensures that it can withstand the rigors of heavy-duty operations while minimizing downtime.

The SDA 150-380 series further enhances this approach with its higher capacity range, accommodating between 150 to 380 CFM. This variant is particularly suitable for larger facilities and demanding applications where sustained airflow is essential. Both series are designed to adapt to various pressure requirements, making them versatile solutions for different industries, including manufacturing, construction, and automotive sectors.

A key technology featured in both series is the use of energy-efficient motors, which significantly reduce operational costs. These motors are designed to deliver high torque at low speeds, ensuring smooth operation and less wear on the compressor. Furthermore, the incorporation of advanced control systems allows for real-time monitoring and adjustments to optimize performance, ensuring that the compressors operate within desired parameters continuously.

Noise reduction is another critical aspect of both the Sterling and SDA series. Innovatively engineered with sound-attenuating materials, these compressors operate at lower decibel levels, providing a more pleasant working environment. This focus on user comfort doesn’t sacrifice performance, as the units are built to achieve maximum efficiency even at reduced noise levels.

The ease of maintenance is another important characteristic. Both models are equipped with user-friendly access points for essential components, simplifying routine checks and servicing procedures. This results in less downtime and improved reliability across the operational lifespan of the compressors.

In conclusion, the Sterling 90-225 CFM and SDA 150-380 series compressors set a benchmark in the industry, offering a blend of performance, efficiency, and user-friendly features that cater to various industrial needs. Their robust construction, advanced technology, and focus on user comfort make them ideal choices for businesses seeking to enhance productivity and reduce operational costs.
Top Page Image Contents