Selection of air filters for central air conditioning Under normal circumstances,At the last level, the air filter of the central air conditioner determines the degree of air purification,The upstream filters at all levels only play a protective role,It protects the lower wind end filter to extend its service life,Or protect the air conditioning system to ensure it works properly.Air conditioning design,The efficiency of the final central air-conditioning air filter should be first determined according to the user's cleaning requirements,Then,Select the filter that plays a protective role,If this filter is also protected,Then add a filter on its upper end.The filters that play a protective role are collectively referred to as 'pre-filters '.The efficiency of central air-conditioning air filters at all levels should be properly matched.If the efficiency specification of the adjacent two-stage filter is too different,Then the previous level does not play the role of the post-protection level;If the differ
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What are the types and functions of filters? High pressure pipeline filter (A): Located on the outlet pipe of the pump, it has the function of protecting pollutants from entering the system. Therefore, the concentration of pollutants in the system can be controlled. However, because it is a high-pressure supervisor, it must be affected by the pulse and pressure of the pump, so the material and strength of the filter element should be carefully considered.1. air filter: Located on the fuel tank, it has the ability to prevent pollutants from mixing with air due to the change of fuel quantity in the fuel tank. Therefore, the filtering accuracy should have the same performance as the filter, and the capacity should be left with sufficient room to prevent the internal pressure of the tank from becoming negative pressure due to hole blocking, causing the hole phenomenon of the pump. Pay special attention when the surrounding environment is bad.2. high-pressure pipeline filter (A): It is located on the outlet