Second floor HVAC layout for a commercial office project. I’ve included the ducting sizes, diffuser placements, and FCU specs for the various offices and lobby areas. It’s got the flow rates (L/S) and neck sizes too, ready for site or tender. مخطط تكييف الهواء (HVAC) للطابق الثاني لمبنى تجاري مع تفاصيل الدكت والوحدات