Legal analysis: From the perspective of preventing odor, the condensate water from air conditioning equipment should be discharged to the floor drain (the floor drain has a water seal) or the drainage pipe of the balcony (the bottom of the balcony rainwater riser should be indirectly drained), and the amount of condensed water is also limited. Not big. However, the floor drain has a grate, and water more than two meters high may splash out over a large area, which will have a considerable impact on the indoor environment. Drainage pipes are all gravity flow. The horizontal pipes have slopes and the riser tees have anti-backflow measures. Generally, the problem of water backflow is not considered, but anti-odor may be considered as a test point. Some explanations are: Condensed water is generally discharged to a special pipe for air-conditioning condensate water, or into the sewer through a water connection device.
Legal basis: "Building Water Supply and Drainage Design Code" Article 13 The drainage pipes of the following structures and equipment shall not be directly connected to the sewage and wastewater pipeline system, and indirect drainage shall be adopted:
1? Drain pipes and overflow pipes of drinking water storage tanks (pools);
2? Drainage of water boilers and water heaters; 3? Drainage of medical sterilization and disinfection equipment;
4? Drainage of condensate water from evaporative coolers and air-conditioning equipment;
5? Floor drainage of refrigerated warehouses where food or beverages are stored and drainage of frost-dissolving water pans for air coolers.