All Services Engineering & Architecture engineering (mechanical / chemical / civil / electrical) HVAC (Revit /cad/hap/duct sizing) Share This Copy Link Directly Copy $10/hr · Starting at $600 after getting the sheet from architectural.... designing air conditioning systems and selecting suitable system wiz its equipment by HAP softwaredetermining the suitable duct sizing and material according to codes and the suitable tracks of the ducts with cad software or rivet ability to use rivet to check interference or air outlets to can be implemented Skills & Expertise Autodesk RevitCAD ModelingDesignFire EngineeringHVAC System DesignMechanical EngineeringPipeline Engineering 0 Reviews This Freelancer has not received any feedback.