Air conditioning system

DETAILED DESCRIPTION I claim: 1.
An air conditioning system for heating and cooling the air in an enclosed area; means for exhausting a portion of the air from the enclosed area; an outlet from which the air exhausted from the enclosed area is discharged; an inlet for supplying ambient make-up air to the system to replace the air discharged; a heat exchanger disposed between the exhaust means and the discharge outlet to enable the exhaust air passing therethrough to treat the make-up air by conduction; means for introducing the treated make-up air to the enclosed area; a heat pump in the system for providing supplemental treatment of the make-up air to that induced by the heat exchanger; said heat pump embodying a compressor; a first coil member disposed in the path of the exhaust air between the heat exchanger and the discharge outlet and alternating as an evaporator and a condenser; a second coil member disposed in the path of the make-up air between the heat exchanger and the blower for introducing the make-up air to the enclosed area and alternating as a condenser and an evaporator; and valve means operating alternately to direct the flow of fluid through the first and second coil members thereby providing heating and cooling as required for the make-up air supply.
2.
An air conditioning system as defined in claim 1 in which the heat pump embodies an expansion type metering valve between the compressor and each coil; each of said metering valves being controlled by a sensor to direct the course of the fluid through the coils as dictated by the need for heating and cooling of the make-up air supply.




Description:
The present invention relates to an air conditioning system incorporating a heat exchanger or the like and a heat pump to provide heating or cooling as required to prepare make-up air introduced to a building or similar enclosed area thereby providing the proper predetermined temperature for creature comfort or the satisfactory atmosphere for a manufacturing facility