Coil Maintenance and Cleaning Recommendation
Routine cleaning of coil surfaces is essential to maintain proper operation of the unit. Elimination of contamination and removal of harmful residues will greatly increase the life of the coil and ex- tend the life of the unit. The following maintenance and cleaning procedures are recommended as part of the routine maintenance activities to extend the life of the coil.
Removing Surface Loaded Fibers
Surface loaded fibers or dirt should be removed with a vacuum cleaner. If a vacuum cleaner is not available, a soft non-metallic bristle brush can be used. In either case, the tool should be applied in the direction of the fins. Coil surfaces can be easily damaged. Applying the tool across the fin edges can cause the edges to be easily bent over, damaging the coating of a protected coil.
NOTE: Use of a water stream, such as a garden hose, against a surface-loaded coil will drive the fibers and dirt into the coil. This will make cleaning efforts more difficult. Surface-loaded fibers must be completely removed prior to using a low-velocity clean water rinse. A vacuum cleaner or a soft-bristled brush should be used to remove surface-loaded fibers and dirt.
Source: MaintainX (Community Member)