Patent ID: 7171821
Filing Date: 2007-02-06
Classification: B60H,F24F,F25D

Abstract:
1. A vent arrangement for a transport temperature control unit, the transport temperature control unit including a refrigeration circuit and being mountable on a transport container having a load space, the vent arrangement comprising: a duct communicating between the load space and atmosphere and extending across at least a portion of the refrigeration circuit; a shutter located along the duct and movable with respect to the duct between a closed position, in which the shutter prevents air flow through the duct, and a plurality of opened positions; and a sensor positioned adjacent to the shutter and operable to record and log shutter position data; wherein the temperature control unit includes a controller, the sensor being in communication with the controller to transmit the shutter position data to the controller; wherein the controller includes a shutter position alarm, and wherein the controller is programmed with shutter position data corresponding to a preferred shutter position, the shutter position alarm alerting an operator when the shutter is outside the preferred position.