HVAC construction drawings of a hotel reconstruction project, including system drawings, floor plans, air duct drawings, water pipe drawings, etc., 19 copies in total. The total area is 5700 square meters. The basement of the hotel is mainly for entertainment, and the ground part has 4 floors, including catering, conference, guest rooms and other purposes. The design scope of this discipline covers the design of air conditioning, ventilation, smoke control and exhaust systems in various functional rooms.