| 摘要 |
A casing defines therein an air intake opening, an evaporator chamber, a full-passage, a bypass-passage and an air-mix chamber. A housing having a downwardly curved upper wall is incorporated with the casing to cover the air-mix chamber. An air blow is provided which forces air to enter the evaporator chamber from the air intake opening. An air-mix door is movably installed in the casing to selectively open and close the full-passage and the bypass-passage. An evaporator is installed in the evaporator chamber, and a heater core is installed in the full-passage. The downwardly curved upper wall is formed with first, second and third openings which are communicated with given portions of a passenger room of the vehicle respectively. A slide door assembly is mounted below the downwardly curved upper wall. The slide door assembly includes two slide doors which are arranged to vary the open area of the first, second and third openings in cooperation with each other.
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