| 摘要 |
PROBLEM TO BE SOLVED: To improve operation efficiency of an outdoor unit by recovering thermal energy of exhaust from a ventilation system during cooling in the summer season and during heating in the winter season, and to prevent an opposite effect during an intermediate season such as spring or fall. SOLUTION: The heat pump type air conditioning device has the outdoor unit 18 and an indoor unit 14, and it is provided with a heat pump cooling or heating an interior of a room 10 to be air-conditioned, an exhaust means for discharging one part of air in the room as exhaust from an exhaust duct 52 to the outside, and change-over dampers 58, 60 discharging the exhaust to the atmosphere via a refrigerant coil 34 of the outdoor unit 18 when an outside air temperature during cooling is higher than a temperature of the exhaust, or when the outside air temperature during heating is lower than the temperature of the exhaust, and discharging the exhaust to the atmosphere without passing it through the refrigerant coil 34 when the outside air temperature during cooling is lower than the temperature of the exhaust, or when the outside air temperature during heating is higher than the temperature of the exhaust. COPYRIGHT: (C)2007,JPO&INPIT |
