| 摘要 |
PROBLEM TO BE SOLVED: To prevent lowering of the efficiency of an air conditioning operation by a constitution wherein an air inlet and an inlet door are provided in a space in a case body and the air inlet is closed at the time of the air conditioning operation and opened at the time when the air conditioning operation is stopped. SOLUTION: A front grille 2 being an inlet of air at the time of an air conditioning operation is provided in the indoor-side front of a case body 1. In the rear of an air inlet 5, an inlet door 6 which rotates integrally with a rotating shaft 21 to open and close the air inlet 5 is provided. The operation of air conditioning is conducted in a state wherein the air inlet 5 is closed and an air outlet 8 opened. Accordingly, the air flowing into a space 4 in the case body from the grille 2 and cooled or heated by a heat exchanger 3 is let out from the air outlet 8 by a blower fan 9. As the result, the air from the air outlet 8 is not sucked into the air inlet 5 and, therefore, the whole of the air let out circulates through a room and can regulate the temperature of the roof efficiently. At the time of a stop of the air conditioning operation, the air inlet 5 is opened. |
