Compressed air is essential in many industrial applications, but the intake air always contains impurities which, once compressed, risk becoming a corrosive mixture that reduces system efficiency and leads to malfunctions.
Dryers help reduce the risk of internal corrosion and problems caused by humidity, preventing compressor downtime and protecting the compressed air system.
The MDX range of refrigeration dryers represents an advanced solution for delivering high‑quality compressed air in industrial processes.
MDX Refrigeration Dryer: Efficiency, Compact Design and Advanced Technology
The MDX range stands out for its robustness, ease of use and compact footprint that optimises space in the compressor room. Thanks to its vertical tower configuration, the floor spacere quirements in the compressor room are minimised, enabling optimal space management.
The air‑cooled MDX version features a hermetically sealed compressor that uses R513A refrigerant, operating at a low compression ratio that significantly extends service life. The condenser, built with copper tubes and aluminum fins, is designed to ensure reliable performance even in high‑temperature environments.
A permanent refrigerant pressure valve provides precise control of the evaporation temperature, maintaining a stable dew pointand ensuring consistently dry, high‑quality air.
The MDX is equipped with a standardintelligent controller offering advanced functions, including:
Pressure dew point monitoring
Configurable condensate drain timer (with adjustable duration and opening frequency)
Freeze protection for the compressor and evaporator
Safety switches for low and high pressure(LP/HP)
These features optimise performance while enhancing operational safety and ensuring continuous, trouble‑free operation.
Key Advantages of the Range: SingleRefrigerant and 3‑in‑1 Aluminium Heat Exchanger
All models in the range use R513 Are frigerant, which fully complies with environmental regulations, including F‑Gas Regulation 517/2014. With a Global Warming Potential (GWP) value of 631,R513A offers a significantly lower environmental impact than many traditional refrigerants, supporting long-term sustainability goals..
The 3‑in‑1 heat exchanger combines three functions in a single module: air‑to‑air exchange, air‑to‑refrigerant exchangeand demister‑type condensate separation. This integrated design optimizes space and while improving thermal performance.
The vertical flow design ensures counter‑current exchange between compressed air and the refrigerant, maximising heat transferefficiency and reducing energy consumption.
An economiser pre‑cools incoming air,reducing the power required for cooling within the evaporator. The outgoing airis then reheated to present condensation from forming in the piping.
MDX+: Even Higher Performance and Enhanced Connectivity
The MDX range is ideal for those seeking an efficient, compact dryer with low operating costs, without compromising on performance.
For more demanding industrial applications requiring greater durability, advanced connectivity and energy optimisation,the enhanced MDX+ version is available.
The MDX+ retains the core strenghts of the MDX—reliability, compactness and space‑saving design— while adding improved featuresfor superior performance and simplified management.
Key enhancements in the MDX+ include:
Stainless‑steel heat exchanger, increasingcorrosion resistance and service life, especially in harsh environments
Connected CAREL controller for remotemonitoring, simplified diagnostics and predictive maintenance, reducing downtime and optimising service
Front-mounted pressure gauge, providing immediate and convenient system pressure monitoring for improved operational management.
As with the MDX versions, the MDX+ features a permanent refrigerant pressure valve to ensure a stable evaporation temperature and dew point.
Technological Innovations in the MDX+
Remote Supervision: The connected IJ controller (for models from MDX+ 50 to MDX+ 460), enables remote monitoring and management of the dryer via smartphone app.
Touchscreen and PGD Controller (for models from MDX+ 580 and above), allow centralised management of there frigeration circuits and real‑time monitoring.
The MDX+ also integrates a variable‑frequency system that reduces energy consumption by over 80% compared to traditional fixed- speed models. This lowers operating costs and environmental impact while improving resource efficiency
