Recommended use The AHU is used, depending on the model chosen, for - the transport and air conditioning of air in and outside buildings where human beings stay - to create the desired indoor air quality in a space occupied by human beings - creating acceptable comfort or desired working conditions - Depending on the type of CTA, air conditioning is mainly carried out by: o Air change o Regulation of ambient temperature and humidity o Filtration of air normally polluted air o Filtration to specific requirements (clean room, etc.) The CTA is suitable for - operation within the agreed design data ranges - an ambient temperature range of -20°C to +60°C over the installation site; if electrical/electronic components are installed outside the AHU, then the maximum temperature is +40°C - a minimum transport air temperature of -20°C (if applicable, frost protection measures must be installed) - a maximum transport air temperature of 60°C - inside the AHU, at motors and other electrical/electronic components, the maximum temperature is 40°C