The refrigeration industry is under increasing pressure to adopt environmentally friendly practices. A primary focus of recent legislation is the phase-out of synthetic refrigerants with high global warming potentials (GWPs) and ozone depletion effects. This shift is forcing companies to explore alternatives that align with both environmental goals and regulatory standards. Among these alternatives, CO₂ (carbon dioxide) systems appear as a highly viable option, offering efficiency, cost-effectiveness, and a significantly reduced environmental impact.

Why CO₂?
CO₂ systems present numerous advantages over synthetic refrigerants. With zero ozone depletion potential and a GWP of just 1, CO₂ has a minimal environmental footprint, making it an attractive choice for companies looking to future proof their operations. Beyond its eco-friendly profile, CO₂ is highly effective across various climates and scales, making it suitable for a wide range of applications in the industrial refrigeration sector.

Key considerations when switching to CO₂
However, adopting CO₂ as a refrigerant isn’t without its challenges. CO₂ is a high-pressure refrigerant, requiring specialized equipment capable of withstanding elevated pressures and temperatures. During standstill periods, ambient temperatures can push the CO₂ system to its critical temperature, leading to pressures that exceed standard levels. Companies switching to CO₂ need to ensure that their components, especially sensors, are built to handle these extreme conditions.

Many traditional refrigeration components are not designed to function under CO₂’s demanding conditions and may fail when exposed to its high operating pressures. Therefore, opting for robust and CO₂-compatible products is essential to ensure both safety and efficiency.

How we are supporting the shift to CO₂
One of our customers in the refrigeration industry approached us with a need for reliable CO₂ sensors that could withstand the unique pressures and temperature variations of a CO₂ system. Drawing on our knowledge of refrigeration technology, we developed a sensor solution tailored for CO₂ applications.

A standout feature of our CO₂ sensors is the extended cooling neck, that protects the electronic components from extreme heat and condensation. This cooling neck acts as a thermal barrier, shielding sensitive electronics and ensuring accurate, consistent sensor performance even in challenging conditions. This design not only improves sensor reliability but also extends the product’s lifespan, making it a cost-effective choice for companies using CO₂.

By choosing components designed to meet the demands of high-pressure, high-temperature applications, companies can ensure both regulatory compliance and operational efficiency.