Packaged Terminal Air Conditioning System

Abstract

An air conditioning unit is disclosed. The air conditioning unit may include an internal inlet configured to receive internal air from an internal area, an external inlet configured to receive external air from an external area, a heat exchanger arranged to receive the internal air from the internal inlet and the external air from the external inlet and generate a conditioned mix of the internal air and the external air, and an internal outlet configured to output the conditioned mix of the internal air and the external air into the internal area.

That which is claimed is: 
     
         1 . An air conditioning unit comprising:
 an internal inlet configured to receive internal air from an internal area;   an external inlet configured to receive external air from an external area;   a heat exchanger configured to receive the internal air from the internal inlet and the external air from the external inlet and generate a conditioned mix of the internal air and the external air; and   an internal outlet configured to output the conditioned mix of the internal air and the external air into the internal area.   
     
     
         2 . The air conditioning unit of  claim 1 , further comprising:
 a body configured to house the internal inlet, the external inlet, the heat exchanger, and the internal outlet,   wherein the body is configured to be partially located in the internal area and partially located in the external area.   
     
     
         3 . The air conditioning unit of  claim 2 , further comprising:
 a filter access port in the body and located in the internal area;   a removable filter disposed in the body, the removable filter being configured to filter the external air as provided by the external inlet and being configured to be removed through the filter access port in the internal area.   
     
     
         4 . The air conditioning unit of  claim 1 , further comprising:
 a moveable cover configured to be disposed in a first position and to be moved to a second position,   wherein in the first position, the moveable cover covers the heat exchanger, and   wherein in the second position, the moveable cover does not cover the heat exchanger.   
     
     
         5 . The air conditioning unit of  claim 4 , further comprising:
 an internal body structure having a base pan having a base pan protrusion,   wherein the moveable cover includes an engaging protrusion configured to engage with the base pan protrusion when the moveable cover is disposed in the first position.   
     
     
         6 . The air conditioning unit of  claim 5 , wherein the base pan includes a handle configured to be grasped to enable a user to pull the air conditioning unit from a wall sleeve in a wall. 
     
     
         7 . The air conditioning unit of  claim 4 , further comprising:
 a removable filter disposed in a removable filter space between the internal inlet and the heat exchanger and configured to be removed from the removable filter space,   wherein the moveable cover includes a removable top panel configured to be in a covered position or a removed position,   wherein in the covered position, the removable cover covers the removable filter space,   wherein in the removed position, the removable cover is removed from the moveable cover so as to provide access to the removable filter space, and   wherein the moveable cover includes a button configured to push the removable top panel from the moveable cover.   
     
     
         8 . A method of operating an air conditioning unit, the method comprising:
 receiving, via an internal inlet, internal air from an internal area;   receiving, via an external inlet, external air from an external area;   receiving, via a heat exchanger, the internal air from the internal inlet;   receiving, via the heat exchanger, the external air from the external inlet;   generating, via the heat exchanger, a conditioned mix of the internal air and the external air; and   outputting, via an internal outlet, the conditioned mix of the internal air and the external air into the internal area.   
     
     
         9 . The method of  claim 8 , wherein the internal inlet, the external inlet, the heat exchanger, and the internal outlet are housed in a body to be disposed in a wall sleeve in a wall so be partially located in the internal area and partially in the external area. 
     
     
         10 . The method of  claim 9 , further comprising:
 providing a filter access port in the body on the internal area,   wherein the filter access port is configured to house a removable filter disposed in the body,   wherein the removable filter is configured to filter the external air as provided by the external inlet, and   wherein the removable filer is configured to be removed through the filter access port in the internal area.   
     
     
         11 . The method  claim 8 , further comprising:
 moving a moveable cover from a first position to a second position,   wherein in the first position, the moveable cover covers the heat exchanger, and   wherein in the second position, the moveable cover does not cover the heat exchanger.   
     
     
         12 . The method of  claim 11 ,
 wherein the air conditioning unit includes an internal body structure having a base pan having a base pan protrusion, and   wherein the moveable cover includes an engaging protrusion configured to engage with the base pan protrusion when the moveable cover is disposed in the first position.   
     
     
         13 . The method of  claim 12 , wherein the base pan additionally includes a handle configured to be grasped to enable a person to pull the air conditioning unit from a wall sleeve in a wall. 
     
     
         14 . The method of  claim 11 , further comprising:
 pushing a button on the moveable cover;   removing a first removable filter; and   inserting a second removable filter;   wherein the first removable filter is disposed in a removable filter space between the internal inlet and the heat exchanger,   wherein the moveable cover includes a removable top panel configured to be in a covered position or a removed position,   wherein in the covered position, the removable cover covers the removable filter space,   wherein in the removed position, the removable cover is removed from the moveable cover so as to provide access to the removable filter space, and   wherein the button is configured to push the removable top panel from the moveable cover.   
     
     
         15 . A packaged terminal air conditioning (PTAC) unit for use in a wall sleeve in a wall having an external side and an internal side, the external side facing an external area, the internal side facing an internal area, the internal area being separated from the external area by the wall, the PTAC unit comprising:
 an internal inlet configured to receive internal air from the internal area;   an external inlet configured to receive external air from the external area;   a heat exchanger arranged to receive the internal air from the internal inlet and to receive the external air from the external inlet and configured to generate a conditioned mix of the internal air and the external air; and   an internal outlet configured to output the conditioned mix of the internal air and the external air into the internal area.   
     
     
         16 . The PTAC unit of  claim 15 , further comprising:
 a filter access port located in the internal area; and   a removable filter configured to filter the external air as provided by the external inlet and removed through the filter access port in the internal area.   
     
     
         17 . The PTAC unit of  claim 15 , further comprising:
 a moveable cover configured to be disposed in a first position and to be moved to a second position,   wherein in the first position, the moveable cover covers the heat exchanger, and   wherein in the second position, the moveable cover does not cover the heat exchanger.   
     
     
         18 . The PTAC unit of  claim 17 , further comprising:
 an internal body structure having a basepan having a basepan protrusion,   wherein the moveable cover includes an engaging protrusion configured to engage with the basepan protrusion when the moveable cover is disposed in the first position.   
     
     
         19 . The PTAC unit of  claim 18 , wherein the basepan additionally includes a handle configured to be grasped to enable a person to pull the PTAC unit from the wall sleeve in the wall. 
     
     
         20 . The PTAC unit of  claim 17 , further comprising:
 a removable filter disposed in a removable filter space between the internal inlet and the heat exchanger and be configured to be removed from the removable filter space,   wherein the moveable cover includes a removable top panel configured to be in a covered position or a removed position,   wherein in the covered position, the removable cover covers the removable filter space,   wherein in the removed position, the removable cover is removed from the moveable cover so as to provide access to the removable filter space, and   wherein the moveable cover includes a button configured to push the removable top panel from the moveable cover.