Air conditioning apparatus

A self-contained refrigeration heat pump air conditioning unit operable in a heating and cooling cycle for conditioning the air of an enclosure comprising:

• a chassis including a base member and a barrier dividing said chassis into an indoor compartment and an outdoor compartment;
• indoor and outdoor heat exchangers mounted respectively in said indoor and outdoor compartments;
• an indoor air moving means for recirculating enclosure air through said indoor compartment;
• an outdoor air moving means for circulating air through said outdoor compartment;
• a compressor mounted in said outdoor compartment;
• means for selectively connecting said compressor to said heat exchangers whereby said outdoor heat exchanger functions as an evaporator during operation of the unit on the heating cycle and said indoor heat exchanger functions as an evaporator during the cooling cycle;
• a condensate collection sump in said outdoor compartment formed in said base member being arranged to collect condensate from said indoor and outdoor heat exchangers;
• means for directing condensate formed on said indoor and outdoor heat exchangers into said sump;
• and
• condensate disposal means arranged in said oudoor compartment including a housing, passageway means connected to said housing at one end and having an outlet at the other end positioned in an opening in said barrier so as to communicate with the indoor compartment, condensate lifting means arranged on said housing including disc means operable in the heating cycle for lifting condensate from said sump and directing it into said passageway means and through said outlet in said indoor compartment into the path of air being circulated by said indoor fan where it is vaporized and directed through the relatively warm indoor heat exchanger functioning as a condenser in said heating cycle.