An electronic expansion valve is provided between first and second indoor heat exchangers. At the time of cooling operation, the electronic expansion valve is fully opened with the result that the first and second indoor heat exchangers are communicated with each other. At the time of dehumidifying operation,...http://www.google.de/patents/US5231845?utm_source=gb-gplus-sharePatent US5231845 - Air conditioning apparatus with dehumidifying operation function
