The eurammon Symposium 2019 with the title "Future-proof solutions in cooling and heating applications" again took place in CH-Schaffhausen. Operators, planners, manufacturers and interested expert visitors met at the eurammon symposium. This year the main issue was future-proof solutions in refrigeration and air conditioning technology and the challenges resulting from legal regulations such as the F-Gases Regulation. International experts showed how the increased ecological requirements can be better achieved by refrigeration and air conditioning systems with natural refrigerants. Participants gained an insight into current legislation and technical regulations, learned about new solutions for charge reduction in ammonia refrigeration systems and discussed different refrigeration systems in supermarket applications.