Patent ID: 9676245
Date: 2017-06-13
CPC Classifications: B60H

Claim:
1. A heating, ventilation and air conditioning system comprising: a case defining an exterior air intake aperture, a first interior air intake aperture and a second interior air intake aperture; a first door rotatably attached to the case, the first door movable between an open position where the first interior air intake aperture is open and a closed position where the first interior air intake aperture is closed; a second door, separate from the first door, rotatably attached to the case, the second door movable between an open position where the second interior air intake aperture is open and a closed position where the second interior air intake aperture is closed; and a third door rotatably attached to the case, the third door movable between an open position where the exterior air intake aperture is open and a closed position where the exterior air intake aperture is closed; wherein: