The new group is suitable for many places. Basically many places can be seen. It can be said that it is closely related to our lives. So how do you know how to maintain the new group of combined groups?1. The combined new group filtering device must be cleaned on time.Check the final friction resistance value of the early and medium -efficiency filters, and the medium -effect filter is cleaned once a year.Every 2 years of disassembly or final friction resistance exceeds 30PA, the medium -efficiency filter should be cleaned or replaced; the medium -efficiency filter is disassembled every three years or the final friction resistance exceeds 50Pa.Early efficiency filter cleaning, disassembly, inspection and stand -up filter disassembly, and inspection should be recorded.2. Each year, the air is compressed to clean up the dust -blowing hot exchangers plate -winged dust; the interior of the thermal exchange water pipe can be used at a higher speed or air to compress the blowing brush, and the work pressure does not exceed 0.3MPa.3. Make organic chemistry to clean the inside of the water switch with organic chemistry methods for 2 to 3 years to remove scale; and eliminate condensate water sealing residues on time;everything is normal.