Refrigeration dryers

AC 2650-4200 & AC 2650-8500 VSD

The Pneumatech AC 2650-4200 and AC 2650-8500 VSD models are top-tier refrigeration dryers designed for large flows ranging from 4500 to 14400 m³/h. These dryers ensure optimal drying efficiency, exceptional dependability, and contribute to noticeably lower energy expenses.

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Lower Energy Costs

Efficiency that adapts

The AC 2650-8500 VSD features advanced VSD technology, which optimizes energy usage by adapting to system demands. This leads to notable reductions in operational costs and minimizes energy waste.

Reliable air quality

Consistent dryness, every load

The AC 2650-4200 & AC 2650-8500 VSD dryers maintain a stable pressure dew point, ensuring high-quality air regardless of load conditions.

High capacity performance

Built for heavy demand

With flow rates reaching up to 14400 m³/h, the AC 2650-4200 & AC 2650-8500 VSD ranges are ideal for high-demand industrial environments, ensuring efficient performance across a wide range of air flows.

AC 2650-4200 & AC 2650-8500 VSD Cycling Refrigeration Dryers

AC 2650-4200 & AC 2650-8500 VSD represent Pneumatech’s advanced range of refrigeration dryers, designed for high flows between 4500 and 14400 m³/hr.

 

Engineered in-house and rigorously tested under stringent conditions, including ambient temperatures up to 46°C, these dryers surpass international compressed air purity standards and comply with ISO 7183:2007. Featuring innovative technologies, they excel in continuous and varying air demand applications.

 

With high-efficiency components and smart design, users can achieve energy savings of around 50%, resulting in reduced power consumption and a lower carbon footprint.

AC 2650-8500 VSD refrigeration dryers front view

Refrigeration dryer technology

Refrigeration dryers, available in both air-cooled and water-cooled versions, work by cooling the warm, moisture-laden air generated by the compressor. The cooling begins in the air-to-air heat exchanger and continues in the air-to-refrigerant heat exchanger, where moisture is condensed and drained. Afterward, the air is reheated to room temperature, reducing the pressure dew point and preventing condensation within the piping system. By cooling the incoming air, the process also decreases the cooling demand on the refrigerant system. Widely adopted across many sectors, refrigeration dryers are the most commonly used drying technology today.

Key features

Variable Speed Drive technology

The AC 2650-8500 VSD range is equipped with cutting-edge Variable Speed Drive (VSD) technology, offering a significant boost in the energy efficiency of refrigerated air dryers. The system uses an inverter to automatically adjust the motor's speed according to the real-time demand for compressed air, leading to optimized energy consumption and lower running costs.
 

During times of lower demand, the dryers slow down to conserve energy, while still providing full capacity when required. This approach not only enhances energy efficiency but also reduces wear on components and extends the overall lifespan of the equipment. With a strong emphasis on performance and sustainability, the AC 2650-8500 VSD delivers a new level of energy-efficient air treatment.

AC 2650-8500 VSD refrigeration dryer left angle ghost view

Key features

Advanced Purelogic Touch controller

The AC 2650-4200 VSD and AC 2650-8500 VSD ranges feature the advanced Purelogic Touch controller, delivering an enhanced user experience and improved operational efficiency. This intuitive interface provides real-time monitoring, seamless adjustment of settings, and optimized performance control.

 

With remote access to system data, users can analyze performance, troubleshoot issues, and ensure continuous air quality from any location. This leads to increased energy efficiency, simplified maintenance, and reduced downtime, all contributing to reliable and efficient operation.

Purelogic Touch controller

Experience the advantages of advanced compressed air drying

Ready to take your compressed air system to the next level? Investing in a quality dryer ensures clean, dry air that protects your equipment, reduces maintenance costs, and boosts overall efficiency. With advanced features designed for reliability and energy savings, a high-performance dryer can significantly improve your operations. Reach out to us today and discover how upgrading your air drying solution can benefit your business.

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General specifications

Pressure dew point (°C)

3

Nominal flow rate (m3/h)

4500 - 14400

Max. inlet temperature (°C)

70

AC 2650-4200 (Air-cooled & water-cooled)

Model

Nominal flow rate (m3/h)

AC 2650

4500

AC 3200

5400

AC 3700

6300

AC 4200

7200

AC 2650-8500 VSD (Air-cooled & water-cooled)

Model

Nominal flow rate (m3/h)

AC 2650 VSD

4500

AC 3200 VSD

5400

AC 3700 VSD

6300

AC 4200 VSD

7200

AC 5100 VSD

8640

AC 6400 VSD

10800

AC 8500 VSD

14400

  • Stable and guaranteed Performance at all operating conditions - PDP of 3°C thanks to direct expansion technology
  • Lowest pressure drop
  • Advanced control algorithm with three different control modes for variable speed versions:
    Regulation of the refrigerant compressor based on actual load
    - Economy: PDP = ambient temperature minus 20˚C (68°F)
    - Lowest Dew-point: best possible PDP
    - Max. saving: PDP = ambient temperature minus 15˚C (59°F)
    Much better turndown efficiency is achieved when the unit runs in a partial load condition
  • Zero glide refrigerant – R410a: Notemperature-glide effect resulting in stable guaranteed PDP
  • Comprehensive scope of supply:
    Energy efficient heat exchanger
    Fully hermetically sealed refrigerant compressor with phase sequence relay
    Refrigerant filter/dryer (standard on all AC 2650-8500 fixed speed and  VSD dryers)
    Electronic hot gas bypass valve (EHGPV)
    Purelogic Touch controller for advanced control and monitoring

  • AC refrigeration dryers: cycling type including VSD
  • Operating Pressure: 4-14 barg/ 58-189 psig
  • Max. Ambient temperature: 46°C/115°F (AC 5100/6400/8500 VSD air cooled - 40°C/115°F)
  • Flow rate: 4500-14400 m³/hr  (2650-8475 cfm)
  • Pressure dew point: 3°C/37°F
  • Power supply: 400V/50Hz; 380V/60Hz; 400-460V/60Hz
  • Refrigerant: R410a
  • Cooling type: Air-cooled and  water-cooled

Get in touch

Have questions or want to learn how our compressed air dryers can enhance your operations? Get in touch with us! Our team is ready to share insights and support you in optimizing your processes with our advanced drying solutions. Let’s elevate your operations together!

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