Fresh air system is a new type of indoor ventilation and exhaust equipment, which belongs to an open circulation system and allows people to breathe fresh, clean and high-quality air indoors. Does the fresh air system need to change the filter element?
In fact, the fresh air system needs maintenance just like the human body. If it is not cleaned and replaced for a long time, it will affect the performance of the equipment, shorten the service life, and even more seriously, it will be scrapped, which is not worth the loss. These problems will occur if they are not maintained. Dust will accumulate on the filter screen, and bacteria and viruses will breed, which will affect the filtration and purification, increase the fan current and cause the motor to burn out. Generally, the filter screen is replaced once every 3 months to ensure smooth purification and filtration; The rotation of motor and fan becomes slow and dull, the air volume decreases, the operation is insufficient, and the noise increases, which affects family rest; Components may be affected by dust and moisture, making the control part invalid; The total heat exchange module is not cleaned in time, which will reduce the heat exchange rate and cause energy consumption; If the interior of the household fresh air system is not cleaned in time and the filter screen is not replaced, the input PM2.5 concentration will be higher and higher, resulting in secondary pollution.
When the equipment is running, generally do not replace the filter; If it is impossible to stop and replace the filter because the filter has expired, it is only allowed to replace the coarse and medium efficiency filters without stopping the fan; Sub-high efficiency filter and high efficiency filter can only be replaced after gas supply is stopped; The gasket between the filter and the connecting frame must be tight and leak-free to ensure the filtering effect.