Air conditioners, humidifiers, and spot heating that can be ventilated in the corona era-From Daikin's media seminar
It's getting colder without heating, but I'm worried about the "ventilation" problem. Regular ventilation is recommended to reduce the risk of new coronavirus infections, but according to the Ministry of Health, Labor and Welfare, the recommended frequency is more than once every 30 minutes. Isn't there a lot of people who feel this is tough in the cold winter?
In 2020, Daikin announced three models of home-use wall-mounted air conditioners that can be ventilated. Air conditioners basically cool or warm the air in the room and circulate it, so they don't "ventilate" the outside air into the room. There are very few air conditioners with ventilation functions. Here, we will report on the mechanism of ventilation air conditioners and Daikin's new products for 2020.
Air conditioners, which are the core of home air conditioning, cannot ventilate
What is surprisingly not known is that most air conditioners do not have a ventilation function. Since the air conditioner has an outdoor unit, it seems that outdoor air is taken in during air cleaning operation, but this is a mistake. An air conditioner is a circulatory system that draws in indoor air and exhausts it. It is not air that is exchanged between the outdoor unit and the indoor unit, but only "heat" via the refrigerant.
Daikin has equipped ventilation functions only in its previous high-end models (Urusara X and Urusara mini). In the 2021 model, products equipped with ventilation functions have been added not only to the flagship model but also to the standard model.
Ventilation system is very simple. The outdoor unit has an intake port dedicated to ventilation, from which air is sent through a dedicated ventilation duct to the indoor unit, where the warmed air is mixed with outdoor air and sent indoors. The hot air from the air conditioner is mixed with the cool air from the air conditioner and sent into the room). For this reason, the room does not get cold even if the ventilation is operated in winter. In addition, due to its simple structure, ventilation can be operated even when the air conditioner's cooling and heating operation is stopped (Daikin's air conditioner is called 24-hour ventilation mode. ).
In Japan, since 2003, it has been compulsory to install a "24-hour ventilation system" in houses, so some people may think that they don't need ventilation in their homes. However, when the 24-hour ventilation system is running, it is necessary to open a ventilation opening somewhere in the house and take in the outside air. In winter, the temperature inside the house drops due to the cold outside air coming into the house. When combined with an air conditioner equipped with a Daikin ventilation function, you can ventilate your home without lowering the temperature by taking outside air from the air conditioner into the room and exhausting it with the home's 24-hour ventilation system.
In addition, the non-water-supply humidification function that is installed in the 2 models of "Urusara" other than the V series is also attractive. It is a function that the air conditioner takes in the moisture in the outside air and humidifies the room. Humidification does not require the hassle of "replenishing water" each time. It is an attractive option if you are considering humidification as a countermeasure against dryness or viruses.
Daikin sells not only air conditioners that can ventilate, but also the IAQ sensor & AI controller "Beside" that can automatically detect air quality and control air conditioning and ventilation (sold separately from air conditioners). Beside acquires and analyzes temperature, humidity, illuminance, CO2, and weather information from built-in sensors and cloud information. When the CO2 concentration in the room becomes high, the air conditioner equipped with Daikin's ventilation function automatically performs air supply ventilation operation to bring fresh air into the room.
Air purifiers, spot heating, and interesting new products
This time, we mainly checked ventilation air conditioners, but Daikin's showroom also has new products such as air purifiers and spot heaters. It was on display. Air purifiers are a genre that sold considerably in 2020, partly due to the impact of the corona crisis. Many people will buy it from now on. Daikin's air purifier is equipped with a 10-year maintenance-free filter that removes 99.7% of 0.3 μm particles. In addition, Daikin's original streamer technology, which oxidizes and decomposes harmful substances using a mechanism called streamer discharge, is also very popular.
Another noteworthy product is the far-infrared heater "CeramHeat". As the name suggests, this is a heater that warms the body with far infrared rays. Far-infrared rays generate heat where they are exposed to light, so they are not affected by wind. If you are hesitant to buy an air conditioner that can ventilate because it is expensive, you may want to consider these products as a heater for ventilation while the windows are open.