The HEA-HPS series air cooled chiller units, specifically designed for air conditioning (HVAC) applications, have a rather wide and various capacity range thanks to their 1-2-4-8 and 12 scroll compressor structure. It is the star of air conditioning systems with its ability to provide heating and cooling when necessary under different seasonal conditions. The cooling and heating capacity at models with multiple compressors are staged. Thus, both energy saving is ensured and the complete stoppage of the process in case of a defect is prevented. The best and advanced technology product components are used at the units.