| 摘要 |
PURPOSE:To perform the room cooling and room heating with the air in a room as a heat source and make it possible to eliminate frosting during the room heating by providing a damper which connects reversibly the cold air channel and hot air channel which pass respectively cold air and hot air that are through an evaporator and condenser to an gas discharge port which opens into the inside of a room and air discharge port which communicates with the outdoor. CONSTITUTION:During room cooling operation, a damper 34 is switched to the position shown by dotted line, and a cold air channel 25 is connected to an air discharge port 17, and a compressor 4 is driven and at the same time a motor 18 is driven. The air in the room which is taken in from an evaporation suction port 13 is cooled by an evaporator 6 and discharged from a fan 8 through a cold air channel 25 and plenum chamber 28 to the inside of the room as cold air from a discharge port 15. Further, during room heating operation, the damper 34 is switched to the position shown by solid line, and the hot air channel 26 is connected to the air discharge port 15 and cold air channel 25 to the air discharge port 17. The air in the room which is taken in from an air suction port 14 is heated by a condenser 5, and discharged to the inside of the room from a fan 7 through the hot air channel 26 and plenum chamber 28 from an air discharge port 15. |
