Agricultural vehicle cab temperature control system

摘要

A combine including an improved HVAC control system is disclosed herein. The frame of the combine supports an operator cab, a harvesting head and the other operational systems of the combine. The control system includes an operator control located at the roof of the cab and a heat exchanger located at the floor of the cab. An interface circuit is electrically coupled to the control circuit and the heat exchanger valve to control the amount of heat output by the heat exchanger. A cooling coil may also be located at the floor of the cab, wherein the control and interface circuit cooperate to control the associated coolant compressor.