Refrigeration dryers: the most economical drying method for any system

Refrigeration dryers are used in compressed air systems worldwide and represent the current state of technology. Refrigeration drying is the most cost-effective technology for the drying of compressed air: The compressed air is cooled, so that water vapour in the air condensates inside the unit and can be drained off. For fluctuating volume flows, we recommend the DRYPOINT  RA eco, as its intelligent controls enables you to make significant energy savings. For applications where stable conditions are a key requirement, the standard DRYPOINT  RA direct expansion dryer is the most efficient solution.

The DRYPOINT RA eco refrigeration dryer represents optimised resource efficiency: The area of application is where compressed air systems and products must be reliably protected against condensate and contamination. The drying is executed via cooling the air. The resulting condensate is efficiently discharged via the BEKOMAT without compressed air losses. Reheating reduces the relative humidity of the dried air to less than 30%. The absorbed amount of energy is adapted to the required dryer performance. This method not only saves energy costs but also protects the environment.

Up to 55% cost savings compared to conventional refrigeration dryers in the first 5 years by utilising the intelligent control system.

The DRYPOINT RA eco refrigeration dryer series continues on from the already successful DRYPOINT RA concept with low pressure loss, optimum heat exchanger design and BEKOMAT. Based on this, we have now developed two new regulating concepts for the different installation sizes, which directly adapt the drying performance to the requirements and thereby considerably reduce energy consumption.

• For volume flows < 1,000 m³/h
• Save energy costs with requirement-related switching off for the refrigerant compressor
• Display of percentage-related energy savings
• Potential-free contact for transmitting alarm messages

For volume flows of less than 1000 m³/h, the DRYPOINT RA eco functions as a cycling dryer whereby the refrigerant compressor is switched off and on, based on demand. The intelligent cycling system is executed depending on the drying requirement and is regulated in such a way that the switch-off times can be optimally extended.

• For volume flows > 1,000 m3/h
• High energy savings with fluctuating drying requirements by utilising the unique combination of frequency control and downtime control
• Implementation of low-vibration and energy-efficient scroll compressors
• Intuitive 4.7” touch screen for simple and rapid function control - also for the integrated BEKOMAT
•  Potential-free contact for transmitting alarm messages
• RS485 interface provides external control and monitoring possibilities
• Recording for alarm situations / alarm messages

For volume flows exceeding 1,000 m³/h, the DRYPOINT RA eco combines frequency regulating of the refrigerant compressor with cycling operation. At these high output rates, the fan is also frequency-regulated, resulting in optimised dryer performance combined with lowest possible energy consumption.

The DRYPOINT RA HT compressed-air refrigeration dryer has been specially developed for applications in which compressed air with high inlet temperatures up to 80 °C must be dried efficiently.

The well thought out and sophisticated, flow-optimised design ensures low-resistance flow for compressed air. The optimised refrigeration compressor technology also ensures low energy consumption with very stable pressure dew point.

The refrigeration dryer provides maximum safety with minimum energy consumption. The integrated BEKOMAT safely drains the condensate that is produced and with no unnecessary loss of compressed air.

The efficient construction design of the DRYPOINT RA HT compressed-air refrigeration dryer is the basis for cost-effective and safe operation - even with compressed air inlet temperatures of up to + 80°C.