Sterling Plumbing 150, 225, 90, 100 Closed Loop Drying System, Dryer Air Flow Diagram

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;Audible/visual critical alarm.

;Fusing for blowers and heaters.

;Dirty Filter indicator for each individual blower.

2-6 The Closed Loop Drying System

Dehumidifying dryers force hot, dry air through the resin in the drying hopper where the air picks up moisture from the material and is drawn back to the dryer.

In the dryer, a desiccant bed strips moisture from the air. The dryer then re-heats dried process air, and sends it back into the drying hopper to dry material again.

This system is a closed loop, because ambient (outside) air is never introduced into the process air. See Figure 2. Our dehumidifying dryers use the closed loop system, because the process air is typically much drier than ambient air, even after carrying moisture out of the plastic resin.

Recycling process air maintains drying efficiency at a consistently high level.

Figure 1-Dryer Air Flow Diagram

Ambient

 

 

From

 

 

drying hopper

Regen

 

 

Process

filter

Regen

Process air

filter

 

bleed

heater

To drying

 

 

 

 

 

hopper

 

Upper valve

 

 

Desiccant

Desiccant

beds

beds

Regen heater

Regen heater

Lower valve

Regen blower

Process blower

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 Safety How to Use This ManualSafety Symbols Used in this Manual Description Responsibility General ResponsibilityOperator Responsibility Maintenance Responsibility Reporting a Safety Defect General Information Dryer Air Flow Diagram Closed Loop Drying SystemWhat is Desiccant? Process/Regeneration CycleSpecifying a Drying/Conveying System Installation Connecting Compressed AirPositioning Your Dryer Making Electrical ConnectionsConnecting Cooling Water to the Optional Aftercooler Process Air Connections Between the Dryer and Drying HopperDrying Hopper Control Panel Indicator Lights and Switches Rocker SwitchesControls Indicating LightsSignal to the PLC controller to shut down dryer Typical Dyer Interface Panel Process Air Temperature Controller Identifying Temperature Controller LED IndicatorsProcess Air Dew Point Display Identifying Temperature Controller Buttons Display Button Down Arrow ButtonUp 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 Shift on Dew Point Setting the High Dew Point AlarmEntering Operating Parameters to Select Modes Optional Seven Day Timer TimerDisplay Programming the Optional Timer Setting the Current Day of the Week, Hour, and MinuteDaily Timer Operation Checking the Set TimeMultiple-Day Operation Canceling the Settings Day OverrideCabinet Series Dehumidifying Dryer Operation Pre-Startup ChecksStartup ShutdownPage Maintenance Work RulesServicing Process Air Filters Recommendations for Cleaning and Replacing Filters Cleaning with Compressed AirVacuuming WashingPreventative Maintenance Checklist System model # Serial #Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Every two yearsSymptoms of Worn Desiccant Servicing the Dew Point MonitorReplacing Worn Desiccant First AidReplacing the Process Heater Dryer Large bead Type Small bead Type Total per bedLbs Mode Security level Replacing the Regeneration HeaterChanging 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 Troubleshooting Problem Possible cause Corrective actionStop the dryer PLC Determining Temperature Controller Errors or Sensor Errors Using a ThermocoupleUsing a Platinum Resistance Thermometer Technical Specifications Service DepartmentContact Information 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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