Filter cleaning system for use with an external mounted filter assembly including timer activated functionality

A cleaning and fluid recirculation system for a filter mounted over an intake opening of an air handling unit, comprising:

• a fluid collection basin upon which is adapted to being supported the air handling unit;
• a pump supported within said basin and connecting to a fluid supply line with control valve for supplying fluid to elevated feed lines connected to one or more conduits adapted to be secured to elevated locations of the unit, said conduits each including a plurality of spaced nozzles arrayed against the filter;
• said nozzles being directed at a downward angle relative to either of a horizontal or vertical side edge of the filter, said conduit with said nozzles being either fixed or angularly adjustable, an arcuate pathway configured in each of opposite end supporting plates between which said conduit extends for adjusting an orientation and angle of said conduit and spaced nozzles;
• and
• at least one control valve incorporated into any of said fluid supply line, feed lines or conduits for supplying a pressurized fluid through said nozzles in order to provide timed removal of debris from an exterior of the mounted filter prior to collection and recirculation from said basin.