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Medium Filter Filtration Standards and Notes on Use and Replacement
Medium Filter Filtration Standards and Notes on Use and ReplacementThe medium air filter is inexpensive, lightweight, compact, good generality, suitable for central air conditioning and centralized ventilation system concerns, large air cavity machine filtration, especially in the filter device before encountering over the system, specific medium-effect filter filtration standards, use characteristics and replacement period, precautionsThe medium filter is mainly used as the final filter of the general air-conditioning system and the pre-filter of the purified air-conditioning system. The medium-effect filter filtration standard is to filter ≥1μm particles of dust in the atmosphere with a filtration efficiency of ≥50%~99%@≥1μm (counting method) or European standard F5-F9, the outer frame is: galvanized sheet, aluminum profile; the filter material is: polypropylene fiber and glass fiber material. The replacement period of the medium air filter is as follows: 1, 3-4 months when the filter needs to be replaced under rated airflow usage conditions. 2, Or when the resistance of the filter reaches 400pa or more, the filter must be replaced. 3, If the filter uses washable media, the filter media under replacement can be rinsed with water or a solution containing a neutral detergent, cooled and dried, and then replaced.A maximum of two cleanings are allowed before a new filter must be replaced. This service life cycle will also be reduced if the dust concentration in the use environment is greater. Air conditioning medium air filter use precautions： Regularly check whether there is any debris blockage on the air inlet surface of the filter and whether the surface of the filter media is broken; if items are blocking the surface, it should be clear; if the surface of the filter media is seriously broken, it must be replaced with new filter media or replaced with a new filter and reinstalled; when the filter is installed, ensure good sealing at the pressure edge with the frame to prevent air leakage; do not use heavy objects to hit the surface of the filter and do not force to pull the filter media of the filter When installing the filter, the length of the filter bag should be perpendicular to the ground to ensure the filtering effect of the air supply and to ensure longer service life. |
