A reverse logistics shipping system 10 for passive thermal control shipping containers 20 that require thermal conditioning at a management facility 100 prior to each use of the container 20 to deliver a thermally labile payload 30 from a distribution facility 200 to a customer facility 300. To protect against damage at low ambient temperatures, a heating element is arranged on a housing of a pump chamber of the delivery unit and thus makes it possible for the washer fluid situated in the pump chamber to be heated rapidly and in a specific manner. The outer sleeve having the slots provides a beautiful outlook and has a function of heat dissipation. The icing condition detector is configured to detect a presence of a number of types of icing conditions for the aircraft using the number of images from the sensor.