Chillers (DE-UZ 231)

Chillers are refrigerating machines that extract heat from the medium to be cooled via a water circuit. They are used in a wide range of cooling applications in the commercial and industrial sectors, but also for air conditioning in residential and especially non-residential buildings. They contribute to climate change in two ways: firstly, by requiring electrical energy and the greenhouse gas emissions associated with energy conversion (indirect emissions), and secondly, through the direct emissions of refrigerants, which often have a very high global warming potential (GWP). Direct emissions are caused by leaks during operation, maintenance and repairs as well as disposal. Against this background, greenhouse gas emission savings can be realised by using environmentally friendly and energy-efficient chillers. Starting points here are in particular the use of natural refrigerants and increasing the efficiency of the machines. The aim of this ecolabel is to be able to identify products that work with natural refrigerants and are characterised - beyond the legal requirements - by additional environmentally friendly properties. These are, in particular, high energy efficiency and low noise emissions.