Abstract: The invention is directed to regulating the conditioned space of an environment-controlled transport unit by identifying the product being conveyed as cargo in the conditioned space of a transport unit. A user can identify the cargo by selecting it from a menu of cargo identifiers. Once the cargo is identified, an environment control system retrieves from memory environment-control parameters as a function of the identified cargo, and regulates the environment of the conditioned space based upon the environment-control parameters.

Abstract: A removable modular duct system for conducting air in a temperature-controlled cargo container. Temperature-controlled air produced and propelled by a refrigeration unit, is conducted along the modular duct system by one or more duct sections and a transition section that conducts air from the refrigeration unit to the duct sections. The air may be discharged laterally via lateral discharge openings in the duct sections. An end section may be coupled to the duct sections to discharge air at the end of the duct system.

Abstract: An air return bulkhead comprising a base; a return air duct extending outward from the base, the base and air duct defining a bulkhead return air chamber, the duct comprising a first wall, a second wall, a third wall, a fourth wall, and a fifth wall joining the other walls; at least one return air inlet notch formed in the air duct fourth and fifth walls; and means for producing turbulent return air flow through the return air chamber, said means located downstream from the at least one inlet notch. The bulkhead further includes air dam positioning means on the first and second walls. Individual air dam members are slid in the positioning means to be removably mounted along the bulkhead.