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Removable debris filter for an air conditioning condensing unit
In residential and commercial air conditioning systems, it is common to have a split system central air conditioning system in which the condensing unit is located outdoors. A typical condensing unit is illustrated in FIG. 1 and indicated generally at 10. The condensing unit 10 is operative to continuously draw ambient air across one or more condensing coils 12 (see FIG. 5) in which the system refrigerant circulates. In order to create this air movement, a blower motor is operated to spin a bladed fan (not shown), causing a flow of air out of the fan outlet 14 located on top of the condensing unit 10. This outflow of air creates a negative pressure within the condensing unit 10.
The sides of the condensing unit 10 are generally open to the surrounding atmosphere, having only a widely spaced metal grid 16 thereon. The metal grid 16 is effective in keeping large objects (such as animals) out of the condensing unit, but does not impede the flow of air. Consequently, the negative pressure within the condensing unit 10 causes large quantities of air to be sucked in through the metal grid 16.
Because of the wide spacing of the metal grid 16, any small airborne objects in the immediate vicinity of the condensing unit 10, such as insects, grass clippings, dirt, cottonwood seeds, dryer lint and other debris will be drawn into the coils 12 of the condensing unit 10, thereby clogging the coils 12.
Operating the condensing unit 10 with clogged coils 12 lowers the efficiency and decreases the life expectancy of the air conditioning system. This results in higher electrical costs and the need to replace the system sooner. The coils 12 may be cleaned, however conventional methods of cleaning the coils 12 are difficult, environmentally unfriendly, and dangerous for a homeowner to perform. These conventional methods require disassembly of the outer shell of the condensing unit 10, application of a commercial cleaning solvent to the clogged coils 12, and rinsing the solvent off of the coils 12 with a garden hose. Not only does this result in the run-off of the solvent into the surrounding earth (an environmental hazard), but there is also a risk of electrocution if the electrical supply (220 VAC) to the condensing unit 10 is not disconnected.
There is therefore a need for a means for preventing an air conditioning condenser unit 10 from becoming clogged with airborne debris, thereby obviating the need to clean the coils 12 of the condensing unit 10. The present invention is directed toward meeting this need.
The present invention relates to a removable debris filter for an air conditioning condensing unit. The filter preferably comprises a quantity of fiberglass screen material having a drawstring seam attached onto opposite ends thereof. The screen material is wrapped around all four vertical sides of the air conditioning condensing unit and is held in place thereon by pulling each drawstring tight and tying a knot. The fineness of the screen mesh is adequate to prevent most airborne debris from entering the condensing unit, and the drawstrings allow the filter to be easily removed from the condensing unit for cleaning.
In one form of the invention a removable debris filter for an air conditioning condensing unit is disclosed, comprising a piece of mesh material having first, second, third and fourth edges; a first channel formed along the first edge; a first drawstring disposed within the first channel; a second channel formed along the second edge; a second drawstring disposed within the second channel; wherein the filter may be mounted to the condensing unit by wrapping the mesh material around the condensing unit, bringing the third and fourth sides together, pulling the first and second drawstrings tight, tying ends of the first drawstring together and tying ends of the second drawstring together.
In another form of the invention a removable debris filter for an air conditioning condensing unit is disclosed, comprising a piece of mesh material having first, second, third and fourth corners; and first, second, third and fourth attachment means coupled to the mesh material near the first, second, third and fourth corners, respectively; wherein the filter may be mounted to the condensing unit by wrapping the mesh material around the condensing unit, joining the first and second attachment means, and joining the third and fourth attachment means.
KEESTRACK manufacturing expert of
mobile screening equipment
. Company engaged in the research & development, manufacture, sales of track
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