The air filter used in air conditioning system in after a period of time after the operation, its capacity amount of dust and air resistance will reach its maximum allowed. At this point, you have to be replaced, otherwise will not be able to run normally, clean air conditioning system in air output decreases, and lack of wind speed and air changes, clean room also will not be able to achieve the use effect.Before the hepa filter to dismantle to indoor equipment protection measures, to prevent the terminal air filter removal and after the demolition of the place such as air duct, static pressure box accumulated dust falling damage to the equipment and floor, air filter at all levels in the replacement of clean air conditioning system should be paid attention to:Clean air conditioning system used in the air filter under what circumstances should be replaced, at all levels should be decided according to their own specific conditions. Fresh air filter (TWC) in the early and middle air filter (effect) in the replacement, can at the beginning of the air resistance as the resistance value of 1.5 to 2 times.
Change in the national standard clean workshop design and high efficiency filter specified in the specification as follows:
(1) lowest air velocity, even after early replacement effect, effectively filter in airflow speed still cannot be enlarged;
(2) high efficiency air filter resistance to early resistance 2 times;
(3) high efficiency air filter is unable to repair the leakage should be replaced. It is also efficient filters to replace three principles.
End of the clean air conditioning system air filter replacement is very troublesome, change cycle is long. Therefore, in the end of the replacement of air filters at the same time, deal with all the equipment in the system for a major overhaul, clean the dust in the wind.All levels of the installation of the air filter in clean air conditioning system, play a key role to ensure clean room cleanliness is the end of the filter. Especially after installed terminal filter must leak detection, step-by-step installation procedures for installation, and high efficiency filter leak detection, test.