Air Conditioning system and method for operating the same

An air conditioning system comprising:

• a desiccant for adsorbing moisture for process air;
• and a heat pump, including a compressor, that operates by using process air as a low-temperature heat source and regeneration air as a high-temperature heat source so as to supply heat to regeneration air for regenerating said desiccant;
• wherein paths of process air and regeneration air that pass through said desiccant are divided into a first zone for performing dehumidifying of process air and a second zone for performing regeneration of said desiccant using regeneration air so that said desiccant repeatedly shifts its position between said first zone and said second zone, and said heat pump is comprised by at least a compressor and a first low-temperature heat source heat exchanger, a second low-temperature heat source heat exchanger and a high-temperature heat source heat exchanger, and process air is made to pass through said desiccant in said first zone, said first low-temperature heat source heat exchanger of said heat pump, and then to enter a conditioning space, and said regeneration air is made to pass through said high-temperature heat source heat exchanger of said heat pump, said desiccant in said second zone and said second low-temperature heat source heat exchanger of said heat pump before being discharged outside, and a refrigerant is made to flow into said compressor by selecting either a forward path from said first low-temperature heat source heat exchanger to said second low-temperature heat source heat exchanger or a reverse path from said second low-temperature heat source heat exchanger to said first low-temperature heat source heat exchanger.