Abstract: A seal apparatus for a heat exchanger used in an automotive vehicle is disclosed. The seal apparatus includes a closed loop of flexible material, the loop defining four substantially orthogonal edges configured to contact the respective sides of the heat exchanger. The loop includes a sealing bead, a plurality of locating blocks disposed at predetermined locations on the loop and a strap and tie connector integrally formed with the closed loop for securing the loop onto the heat exchanger.

Abstract: A multiple entry air intake passage for a heating and air conditioning system has a first inlet for receiving fresh air and a second inlet for receiving recirculation air, the second inlet having two distinct openings in two walls of the passage housing for increasing the flow of air into the system. An L-shaped damper door has a main portion disposed to seal a main opening of the second inlet, and an auxiliary portion disposed to seal an auxiliary opening of the second inlet. The L-shaped damper door is pivotally mounted onto the housing of the air intake passage to allow pivoting movement between the fresh air and recirculation air positions.