White Paper

How to Solve the Challenge of Using Natural Refrigerants in Cooling System Design

The use of natural refrigerants is on the rise, creating a new set of challenges for cooling system design. Optimize safety and efficiency by understanding the implications of the trend on component design and selection.

This white paper provides an overview of methods used to mitigate these technical challenges as well as a look at the some of the HVAC and refrigeration hardware and safety technologies required to handle these new refrigerants, especially pressure switches and pressure sensors.

The role of pressure components in cooling systems

  • Pressure switches in HVAC/R and industrial applications like Sensata’s 25PS and PS80 series provide the crucial safety factor and have been tested up to 100,000 life cycles and 345 bar (5000 psi) for burst pressure.
25PSV Series

25PSV series automatic reset pressure switch
Tested to IEC 60079-15:2010 standards for operation in explosive atmospheres such as in systems using Propane (R290) as a refrigerant.

Sensata’s PS80 pressure switch

PS80-2X series automatic reset pressure switch
Designed to withstand increased pressures and temperatures for use in CO2 (R744)-based air conditioning and refrigeration equipment.

  • Pressure sensors allow monitoring of feedback in real-time through IoT platforms.

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