HEAT PUMP TYPE AIR CONDITIONER

PROBLEM TO BE SOLVED: To provide a heat pump type air conditioner capable of quickly draining drain water dripped in a lower casing to an external part without staying in heating operation in winter. SOLUTION: This heat pump type air conditioner has whole heat exchangers 4 straddling an air supply flow passage 2 and an exhaust flow passage 3 between the air supply flow passage 2 having an outside air introducing port 2a and an air supply port 2b to an air-conditioning object chamber and the exhaust flow passage 3 having an air circulating port 3a from the air-conditioning object chamber and an exhaust port 3b to the external part, and performs cooling operation of the air-conditioning object chamber by making a refrigerant from a compressor 12 flow in order of a first exchanger 6 and a second heat exchanger 10 to the first heat exchanger 6 arranged on the downstream side of the air supply flow passage 2 of the whole heat exchangers 4 and the second heat exchanger 10 arranged on the downstream side of the exhaust flow passage 3, and is provided with the lower casing 23 arranged under the second heat exchanger 10, and a tubular coil part 15 storing a refrigerant liquid condensed by the first heat exchanger 6 in heating operation in the lower casing 23 and warming up the inside of the lower casing 23 by using remaining heat of the refrigerant liquid. COPYRIGHT: (C)2009,JPO&INPIT