Published 31-01-2022

Sustainable, efficient and smart refrigerant compressed air dryer


Boge's DS-2 series of refrigerant dryers feature increased environmental standards than earlier models with a refrigerant R 513 A as standard, delivering a much lower global warming potential impact.

According to the company, it is not just the low CO2 footprint that underlines the new refrigerant dryers; they also offer economic advantages. The smart control adjusts to the actual demand and reduces power consumption at a constant pressure dew point. 

Energy efficient

The smart control automatically switches off the cooling compressor at partial load as soon as the required dew point has been reached. The cooling temperature is stored in the heat exchanger and this cold reserve cools the incoming compressed air until the dew point rises again.

The cooling compressor only starts up again to maintain the required temperature level and energy is only consumed  from this point. This enables energy savings of up to 79 percent compared to a dryer in continuous operation. The new frequency-controlled fan ensures a stable condensation pressure and reduces energy consumption by up to 25 percent.

The patented design of the heat exchanger combined with low differential pressures and a low refrigerant requirement results in lower power consumption. The high efficiency components reduce pressure losses to a minimum, which prevents over-compression. 

Sustainable advantages 

With a GWP (Global Warming Potential) of 573, the new devices exceed the requirements of F-Gas Regulation EU 517/2014 which stipulate a significant reduction in emissions of fluorinated greenhouse gasses (F-gasses) by 2030 to protect the environment. 

Furthermore, the models of the DS series require a very small amount of refrigerant. Another advantage comes from the hermetically sealed refrigerant circuit and a CO2-equivalent less than 10t, the entire series is exempt from the leak tightness test stipulated in the F-Gas Regulation. Users can save the costs of testing by certified refrigeration technicians. 

A smart control 

The new control also reduces the consumption and costs of Boge's refrigerant compressed air dryer. In this way the control integrated as standard, enables perfect adjustment to real operating conditions.

It responds to temperature fluctuations immediately which minimizes the power consumption while offering convenient and intuitive operation via a high quality 4.3"‘ touchscreen.
It can even be easily incorporated into an existing infrastructure thanks to various interfaces. Communication takes place by Modbus RTU, USB ports or optionally by Modbus TCP/IP. Other new components, for example electronic hot gas bypass valves, in conjunction with the installed scroll compressors ensure efficient drying and reliable operation.