Abstract: A room air conditioner is provided having an evaporator coil located in a front part of the room air conditioner, a condenser coil located in a back part of the room air conditioner, and a wall separating the front part from the back part. The wall prevents a free flow of air between the front part and the back part. A portion of the wall, extending less than a full width of the air conditioner, is formed of metal. An air moving device positioned in the front part creates an air stream flowing through the evaporator coil and out through an air outlet in a front grill of the air conditioner. An air housing surrounds at least a portion of the air moving device and forms an air flow path in the air conditioner, the air housing forming at least a part of the wall. The metal portion of the wall is mounted to the room air conditioner independently of the air housing.

Abstract: A refrigeration device is provided having a compressor, a condenser, an evaporator, and tubing to connect the compressor to the condenser, the condenser to the evaporator and the evaporator to the compressor. The condenser coil includes a plurality of tubes arranged in horizontal and vertical rows extending between vertically arranged header plates with return bends interconnecting the tubes to form a serpentine shaped circuit. The header plates are provided with at least one notch in a bottom edge thereof to accommodate a tube extending therebetween. In an embodiment, a wet loop is positioned in the area of the notches in the header plates.