Patent ID: 6983619

Claim:
A bus rooftop air conditioner module comprising: a housing; an evaporator section disposed in said housing and having a fan for circulating return air from the passenger compartment of a bus, through an evaporator coil to a supply air duct and to the passenger compartment; and a condenser section disposed in said housing and having a condenser coil with a fan for drawing outside air into an inlet opening on one side of a vertical plane and through said condenser coil and discharging it from a discharge opening on the other side of the vertical plane wherein said condenser fan is a tangential fan with its axis disposed horizontally and including a drain pan disposed below said condenser coil and said condenser fan, said drain pan being generally planer in form, but having a portion which is disposed under said fan and is curvilinear in form to act as an air guiding wall for the fan.