Heating and air conditioning, for vehicle cabin, comprises first heat exchanger in cabin and second heat exchanger outside which is able to transfer heat from cabin to air conditioning fluid

摘要

A heat source (6), typically the engine is connected to a first heat exchanger (9) located in the cabin (11), an air conditioning condensor (21) in contact with outside air and a second heat exchanger (18) placed outside the cabin. The second heat exchanger with valves (23,25) forms a switching unit (D) which enables the cabin to be heated or alternatively air conditioned by transferring heat from the first heat exchanger circuit to the condensor circuit.