Gas detection systems play a critical role in ensuring safety and regulatory compliance in refrigeration and HVAC applications, particularly as the industry transitions toward low-GWP and flammable refrigerants. This presentation provides a structured overview of gas detection requirements based on EN 378 and EN 14624, with a focus on practical implementation.

EN 378 defines when gas detection is mandatory, based on refrigerant charge, system type, occupancy classification, and machinery room requirements. It also covers alarm thresholds, safety functions, and integration with mitigation measures such as ventilation systems. EN 14624 complements this by specifying performance requirements for fixed gas detection systems, including accuracy, response time, ...