Design mechanical systems, equipment selections, HVAC ductwork and selection of air distribution outlets, load/energy and pressure drop calculations, collaboration, size water distribution piping, perform CAD/BIM-drafting, coordinate mechanical system design with architects and other consultants, writing specifications, apply building codes and standards (ASHRAE, EN, DIN, ????, SRPS, Boverket, Sakervatten, SS-EN... ), develop system sequences of operation and P&ID’s.