Sterling Plumbing Cabinet Series Dehumidifying Dryer, 225 Operation, Pre-Startup Checks, Shutdown

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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

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Contents 90,100, 150, 225 CFM Cabinet Series Dehumidifying Dryers Bulletin No. DH1-630.1 Table of Contents TROUBLESHOOTING…………………………….48 Charts and Figures How to Use This Manual SafetySafety Symbols Used in this Manual Description General Responsibility ResponsibilityOperator Responsibility Maintenance Responsibility Reporting a Safety Defect General Information Dryer Air Flow Diagram Closed Loop Drying SystemProcess/Regeneration Cycle What is Desiccant?Specifying a Drying/Conveying System Positioning Your Dryer InstallationConnecting Compressed Air Making Electrical ConnectionsProcess Air Connections Between the Dryer and Drying Hopper Connecting Cooling Water to the Optional AftercoolerDrying Hopper Controls Control Panel Indicator Lights and SwitchesRocker Switches Indicating LightsSignal to the PLC controller to shut down dryer Typical Dyer Interface Panel Identifying Temperature Controller LED Indicators Process Air Temperature ControllerProcess Air Dew Point Display Up Arrow Button Identifying Temperature Controller Buttons Display ButtonDown Arrow Button Auto-Tune ButtonE5CK Operating Parameters Available E5CK ModesSetting the Process Air Temperature PLC ControllerPLC LED Indicators Name DescriptionOutput LED Indicators Typical Subpanel Layout Typical Cabinet Dryer Electrical Schematic, Drawing Typical Cabinet Dryer Electrical Schematic, Drawing 222 Setting the High Dew Point Alarm Setting the Shift on Dew PointEntering Operating Parameters to Select Modes Timer Optional Seven Day TimerDisplay Programming the Optional Timer Setting the Current Day of the Week, Hour, and MinuteChecking the Set Time Daily Timer OperationMultiple-Day Operation Canceling the Settings Day OverrideCabinet Series Dehumidifying Dryer Startup OperationPre-Startup Checks ShutdownPage Work Rules MaintenanceServicing Process Air Filters Vacuuming Recommendations for Cleaning and Replacing FiltersCleaning with Compressed Air WashingJan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Preventative Maintenance ChecklistSystem model # Serial # Every two yearsSymptoms of Worn Desiccant Servicing the Dew Point MonitorReplacing Worn Desiccant First AidDryer Large bead Type Small bead Type Total per bed Replacing the Process HeaterLbs Replacing the Regeneration Heater Mode Security levelChanging the Controller Security Level Mode Parameter Setting range Default Factory Mode Parameter Setting range SettingParameter Setting range Option BoardsRestoring Factory Defaults on the Dew Point Controller Option Type RE232C RS-485 Event Input Transfer OutputPID Cabinet Series Dehumidifying Dryer Problem Possible cause Corrective action TroubleshootingStop the dryer PLC Using a Thermocouple Determining Temperature Controller Errors or Sensor ErrorsUsing a Platinum Resistance Thermometer Contact Information Technical SpecificationsService Department Parts Department

100, 150, 90, Cabinet Series Dehumidifying Dryer, 225 specifications

The Sterling Plumbing 150, 225, 90 Cabinet Series Dehumidifying Dryer is a state-of-the-art appliance designed to effectively eliminate excess moisture in various environments. This versatile dryer is ideal for residential, commercial, and industrial applications, providing reliable moisture control to enhance air quality and prevent damage due to humidity.

One of the main features of the Sterling Plumbing Dehumidifying Dryer is its impressive moisture removal capacity. With options available for 150, 225, and 90 pint per day configurations, this unit can cater to different sizes and types of spaces, making it a suitable choice for everything from small basements to large warehouses. Its cabinet design allows for efficient air circulation, maximizing its dehumidification capabilities while remaining compact and easy to install.

The technology integrated within the Sterling Plumbing Dehumidifying Dryer is advanced, incorporating a high-efficiency compressor and a durable, corrosion-resistant housing. This ensures that the unit operates quietly and efficiently, providing a long service life with minimal maintenance required. The dryer features an automatic humidistat that monitors the humidity levels in the environment, adjusting its operation to maintain desired settings without manual intervention. This smart technology not only conserves energy but also ensures optimal performance.

In addition to its dehumidification function, the Sterling dryer is equipped with a built-in air filtration system that captures dust and allergens, contributing to overall indoor air quality. The easy-to-clean filters are designed for durability, ensuring that the unit remains functional and effective over time.

Another notable characteristic of the Sterling Plumbing Dehumidifying Dryer is its user-friendly interface. The control panel is designed to be intuitive, allowing users to easily set their preferred humidity levels and adjust operation modes. With options for continuous drainage, users can also opt to run the unit without worrying about emptying the water tank frequently.

Overall, the Sterling Plumbing 150, 225, 90 Cabinet Series Dehumidifying Dryer is a powerful, efficient, and reliable moisture management solution. With its blend of advanced technology, user-friendly features, and robust design, it is an essential appliance for anyone looking to improve indoor air quality and protect their space from the damaging effects of excess moisture.
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