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Wastewater from air conditioners has many uses if you know its properties and origin. Photo: Green Prophet . |
When air conditioners are running, users often notice water leaking from the drain pipe. Some people wonder why air conditioners discharge water and whether it can be reused for other purposes.
According to Panasonic's documentation, when the air conditioner is operating, the room becomes drier. A certain amount of moisture in the air accumulates and forms water droplets. These droplets then fall into the collection tray below and are drained out through a pipe.
The design of the evaporator coil plays a crucial role. According to Air Experts , evaporator coils are typically made of copper, steel, or aluminum for better heat conductivity. Most residential air conditioners have coils bent into a U-shape, mounted on heat sinks, and arranged in an A-shape.
When the air conditioner is running, the refrigerant (after passing through the expansion valve) becomes very cold and enters the evaporator coil to absorb heat from the room air. The fan blows the hot air through the coils, causing the refrigerant to warm up and evaporate.
Moisture in the air condenses into water vapor when it encounters cold temperatures, dripping into a collection tray and draining away. This process not only cools the room but also reduces humidity, creating a dry and airy space.
The amount of wastewater from an air conditioner is not fixed but depends on many factors. Depending on the equipment's capacity, weather conditions, and air humidity, the amount of wastewater produced will vary.
According to Panasonic, a typical air conditioner can discharge about 1-2 liters of water per hour of operation. If the air conditioner is on for 8 hours a day, the amount of water discharged could be around 8-16 liters.
In theory, the water discharged from air conditioners is pure and can be reused. However, during operation, parts such as copper pipes, conduits, and drain pans often accumulate dust and algae. This results in wastewater containing many impurities, dirt, and harmful bacteria.
"If wastewater from air conditioners is not properly treated and is still used, it can cause environmental pollution and harm human health," Panasonic's supporting document emphasizes.
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Users should check carefully if their air conditioner is discharging excessive amounts of water. Photo: Air Conditioner Repair Service . |
Although not suitable for drinking, wastewater from air conditioners still has some benefits. According to Daikin, one of the common uses is watering plants. Because it does not contain chlorine or minerals found in tap water, this type of water is more beneficial for plant growth, both indoors and outdoors.
Water from air conditioners is also suitable for steam irons. The absence of minerals helps prevent limescale buildup, making the iron last longer and avoiding white marks on clothes.
In addition, wastewater from air conditioners can be used to make homemade soap. The purity of the water helps the ingredients blend better.
For household cleaning, users can utilize water from air conditioners to mop floors, wash cars, or clean windows. This type of water is also suitable for adding to miniature landscapes, fountains, or small ponds in the garden.
The documentation from Panasonic notes that before use, the water source should be clearly identified, ensuring that the water has been treated or freed from harmful chemicals and impurities.
If your air conditioner is producing excessive water, it could be due to a lack of regular cleaning and maintenance, a broken drain pipe, or incorrect placement of the drain pan. However, room temperature and humidity can also cause the air conditioner to produce too much water. Regular maintenance and cleaning of your air conditioner can help extend its lifespan and ensure safer water usage.
Source: https://znews.vn/nuoc-thai-tu-may-lanh-co-sach-post1646062.html










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