ID #1681 How long does it take to download the application of the AC/S 1.x.1 via KNX/USB and would you recommend it? BA Engineering Team 04.04.2019 14:54 0 Comments In principle, all projects can be programmed via KNX/USB. However, please note that as bigger the project is the longer it takes to download via USB. That is the reason why we recommend to download the application over IP. Tags: ClimaECO, HVAC, KNX