Water heating drawing of a school complex building, including: water supply and drainage and fire protection plan of 1-5 floors, piping plan of roof water tank room, water supply and fire hydrant system diagram, drainage and rainwater system diagram, heating system diagram, roof outdoor unit plan and equipment list, air-conditioning plan of 1-5 floors, heating and ventilation plan of 1-5 floors, geothermal coil plan of 1-5 floors and other drawings