How to safely use central air-conditioning in offices and homes during the epidemic?

Due to the recent outbreak of the new crown virus, everyone is very concerned about the ventilation safety of central air-conditioning. Let’s talk about central air-conditioning briefly. Central air-conditioning is mainly divided into two types: buildings and residences according to the application occasions.

Due to the recent outbreak of the new crown virus, everyone is very concerned about the ventilation safety of central air-conditioning. Let’s talk about central air-conditioning briefly. Central air-conditioning is mainly divided into two types: buildings and residences according to the application occasions.

1. The central air-conditioning system of the building is mainly divided into all-air system, all-water system and all-cooling media system

What is a full air system?

Basically it is more common in building air-conditioning. Generally, the combined air-conditioning box (abbreviated as AHU) is sent to each room through the air duct, and then mixed with the introduced fresh air through a unified return air duct, and then sent back to the AHU for reprocessing ; This kind of system is what we usually call the “big pot of rice” system, “one open and full open”, the air sent to each room is processed and provided by this AHU. Once there is a virus in a room, it is very likely to be sent to other rooms through this type of air-conditioning system, causing cross infection. Therefore, such air conditioners must be turned off during the epidemic.

How to safely use central air-conditioning in offices and homes during the epidemic?

What is a full water system?

Generally, the fan coil in each room performs independent cooling and heating treatment, and the fresh air is delivered by an independent fresh air system. The all-water system is slightly better than the all-air system. The cold and heat of each fan coil is exchanged with the host through the cold and warm water pipes. Therefore, from the indoor side room alone, cross-infection is not easy to occur when this type of air conditioner is turned on. However, it is necessary to ensure the introduction of sufficient fresh air during use, to ensure the circulation of indoor air, and to avoid crossovers within a single room.

How to safely use central air-conditioning in offices and homes during the epidemic?

What is a full refrigerant system?

An independent indoor unit performs the heating and cooling of each room, and each indoor unit exchanges heat with the outdoor unit module where it is located through a closed refrigerant circuit. Therefore, whether it is indoor or outdoor, a set of refrigerant system is not only independent but also has a relatively small unit capacity, so the risk of infection is extremely low. Fresh air is also delivered by an independent fresh air system. A brand-new fan with cold and heat treatment can be used to deliver fresh air to the room and exhaust air through doors and windows to ensure indoor ventilation. It is also possible to use a full heat exchange fresh air system in a single space to realize heat recovery from heating and cooling, and to meet comfortable fresh air while reducing energy consumption.

How to safely use central air-conditioning in offices and homes during the epidemic?

2. Residential central air-conditioning-mainly consists of two forms: household water machine system and refrigerant system

The household water machine system can be understood as the mini version of the above-mentioned all-water system, and similarly, the refrigerant system can be understood as the mini version of the above-mentioned all-refrigerant system. Therefore, there is no problem for users with central air conditioners installed in their homes to turn on the air conditioners for heating during the epidemic. Each room is an independent device, and there is no problem of cross-infection. Next, what we need to remind you most is the issue of fresh air. Regardless of which form of central air-conditioning is used, the premise that it can be turned on is to ensure indoor air circulation. In addition to opening windows for ventilation, fresh air is the most effective equipment to solve air circulation, especially when there are outdoor problems such as cooling, noise, and dust along the road. Opening windows for ventilation is a big trouble. Fresh air equipment is a way to get the best of both worlds. Now there are several common forms of fresh air in the household central air-conditioning market.

One is the whole house fresh air system. Daikin’s total heat exchangers belong to this type of product. It is a two-way ventilation system that introduces fresh air from the outside and removes indoor exhaust gas. It also has a filter device. If you install this kind of system in your home, please feel free to use it. It can not only effectively ventilate, but also filter the external pollution through the filter device to effectively purify the indoor air of your home.

How to safely use central air-conditioning in offices and homes during the epidemic?

The second type is more representative of local fresh air. Installing a fresh air blower in a room can meet the fresh air ventilation requirements of the room, and can also realize the ventilation and purification and filtration of the room. It is very suitable for users who have not installed fresh air in the original decoration, but want to add them later. If you have adopted this type of fresh air, please rest assured to turn on your equipment.

How to safely use central air-conditioning in offices and homes during the epidemic?

Daikin corner guards installed fresh air purification system, which can achieve the three-effect of inducing fresh air, exhausting exhaust gas, and indoor purification, so that the decorated house can also fall in love with the “home” home.

The third type is that there is no fresh air system in the house, and the windows can only be opened for ventilation after a short period of time. But if there is really no way to open the windows at home, you can only use an air purifier to circulate the indoor air. Although it can only play a supplementary role and cannot replace the opening of windows for ventilation, there is always better than nothing. The principle of this equipment is to purify the air in the room through the continuous circulating filtration in the room, just like a filter sieve, which continuously filters out the pollutants in the air. Of course, when choosing, you should also try to choose some air purification that can decompose bacteria and viruses. It can improve the indoor air environment and provide us with a relatively clean indoor environment.

How to safely use central air-conditioning in offices and homes during the epidemic?

During the epidemic, everyone must do a good job of air protection in the office environment and home air environment protection to tide over the difficulties together!

The Links:   SKKH162-16E FLC38XGC6V-06T

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