Abstract: According to the present invention, an air directing housing is provided for an air conditioning unit of the type having a basepan which supports indoor and outdoor sections. The basepan includes a vertical wall extending upwardly for a part of the height of the unit to define a lower portion of a partition which separates the unit into the indoor and outdoor sections. The indoor section includes an evaporator disposed in the basepan generally forwardly of the partition. A centrifugal fan is mounted between the evaporator coil and the vertical wall for rotation about an axis extending from front to back of the air conditioning unit. The fan is a centrifugal flow fan which has a circular inlet at the front thereof. The air directing housing is adapted to be mounted in the basepan rearwardly of the evaporator coil and surrounding the fan. The housing includes a lower section having a front wall which has a circular opening formed therein which is substantially coextensive with the circular inlet of the fan.

Abstract: According to the present invention, a filter guide structure is provided for an air conditioner of the type having an indoor section which includes a housing having an evaporator coil. The evaporator has fins on its front surface and is mounted in a substantially vertical orientation. An indoor grill is adapted to be mounted to the housing in spaced relation to the evaporator coil. The grill includes a front wall having a return air opening to admit return air to be conditioned into the evaporator coil. The front wall has an elongated opening adjacent to an edge thereof to receive the filter for insertion and removal of the filter into the space between the indoor grill and the evaporator coil. The filter includes a rectangular frame having a leading edge and a trailing edge and laterally spaced edges interconnecting the leading and trailing edges.

Abstract: According to the present invention, an arrangement is provided for mounting compressors on the basepan of an air conditioner which is adapted to use one of two different types of compressors. Each of the compressors is adapted to be mounted in substantially the same region of the basepan. The mounting arrangement includes a first set of compressor mounts attached to the basepan in a mounting region. A second set of compressor mounts is also attached to the basepan in at least a portion of a common section of the mounting region. A first mounting plate is attached to a first compressor which is adapted to be operatively attached to the first set of compressor mounts. The first mounting plate has a lower wall which does not overly any of the second set of compressor mounts. A second mounting plate is attached to the second of the two compressors and is adapted to be operatively attached to the second set of compressor mounts.

Abstract: According to the present invention, apparatus is provided for mounting an evaporator coil within an indoor section of an air conditioner. The air conditioner includes an indoor section having a housing in which an evaporator coil having a top and vertically extending tube sheets is mounted. The evaporator is supported by a horizontally extending support surface formed at the front end of the housing for supporting the lower ends of the tube sheets. First and second vertically extending evaporator support structures are disposed at each end of the horizontally extending support surface. Each of the first and second support structures are adapted to receive one of the tube sheets therein as the evaporator is displaced downwardly into engagement therewith and towards engagement with the horizontally extending support surface.

Abstract: According to the present invention, an air conditioning unit is provided which includes an indoor section and an outdoor section, which are supported by a basepan and which are separated by a partition forming part of the basepan. The indoor section includes an indoor fan and an evaporator coil. During operation, the cold evaporator condenses water from the air being cooled and the condensate flows downwardly to the lower end of the evaporator where it is collected and a flow path is provided from the indoor section through the partition to the outdoor section. The lower end of the evaporator is supported by a substantially horizontal support surface. A condensate collection channel has a first portion located adjacent to, substantially parallel to and in fluid communication with the horizontal support surface. The first portion of the condensate collection channel is inclined from a high point at one end thereof to a low point at the other end thereof.

Abstract: An indoor grille for an air conditioning unit is provided with a horizontal slot through which a substantially rectangular filter element is adapted to be installed. The filter receiving slot is provided with latching structure thereon which is adapted to latchingly engage mating structure on a horizontally extending structural portion of the filter to thereby latch and retain the filter in its desired position when installed in the grille assembly. The latching structure is manually releasable to facilitate easy withdrawal of the filter from the grille. The latching structure also serves to protect the filter from falling out of the slot under the influence of gravity when the grille is oriented upside down.