US 4,139,052 A · Roof top air conditioning unit

Abstract

The air conditioning unit of the invention has a construction of the indoor air flow section which adapts it to receive and return indoor air either through its bottom area in a vertical air flow mode, or through its end wall in a horizontal air flow mode so that the unit may be either roof top mounted or slab mounted without the need of any added section or module furnished by the manufacturer. The indoor air flow section includes a draw-through refrigerant coil located in an upper quadrant of the section, a detachable panel separating two lower quadrants in the section for the vertical air flow mode and movable to separate a lower and upper quadrant for the horizontal air flow mode, and removable end wall panel means covering the end in the vertical air flow mode and being positioned to cover the bottom for the horizontal air flow mode. Additionally, the construction is such that the provision of electric heat, various air flow control options and adaptability of the unit to heat pump operation are all accommodated.

An air conditioning unit of the type adapted for a roof top or slab installation and for receiving and returning indoor air either horizontally or vertically, comprising:

a cabinet having an intermediate vertical partition separating the interior thereof into an outdoor air flow section containing refrigerant compressor means, a first refrigerant coil, outdoor air blower means, and an indoor air flow section containing a second refrigerant coil and blower means for circulating the air to and from the served space, said cabinet including top, end, side and base walls for said indoor section, said side walls including removable panel means at each of the side walls of said indoor section;
the interior space of said indoor section being viewable from a side as including four generally quadrantal spaces defined as follows, the first quadrantal space being located in an upper corner and bounded exteriorly by the end and top wall, the second quadrantal space being located in an upper corner and bounded exteriorly by the top wall and the intermediate vertical partition, the third quadrantal space being located in a lower corner and bounded exteriorly by the intermediate vertical partition and the bottom wall, and the fourth quadrantal space being located in a lower corner and bounded exteriorly by the bottom wall and the end wall;
said end wall having two vertically separated air flow openings therein, the first opening into said first quadrantal space and the second opening into said fourth quadrantal space, said bottom wall having two additional air flow openings therein horizontally separated from each other, defined as the third opening into the fourth quadrantal space and the fourth opening into the third quadrantal space;
interior wall means having generally horizontally extending portion including one portion separating the first and fourth quadrantal space and another portion separating the second and third quadrantal space, the one portion including a fifth air flow opening generally overlying said third air flow opening in the bottom wall;
said second refrigerant coil being located mainly in said first quadrant in an inclined dispostion with its upstream face presented to both said first air flow opening in said end wall and said fifth air flow opening in said one portion of said interior wall means;
said indoor air blower means being located in said second quadrant on the downstream side of said second refrigerant coil and being oriented to discharge air through sixth air flow opening means in said another portion of said interior wall means and down into said third quadrantal space;
a detachable panel having a first position separating said third and fourth quadrantal spaces and a second, alternate position separating said first and fourth quadrantal spaces and covering said fifth air flow opening;
removable end wall panel means adapted to cover said first and second air flow openings in said end wall in a first position and to cover said third and fourth air flow openings in said base wall in a second, alternate position;
whereby said detachable panel and said end wall panel means in first positions establish a vertical mode air flow path in which return air from the served space passes in sequence through said fourth, first, second, and third quadrantal spaces, and said detachable panel and said end wall panel means in their second, alternate positions establish a horizontal air flow mode in which air passes in sequence through said first, second, third and fourth quadrantal spaces.

6 more elements

Roof top air conditioning unit

Life of this patent

Roof top air conditioning unit

Life of this patent

Abstract

Claims9