| 摘要 |
The invention concerns a heating and air conditioning device comprising a motor vehicle heat engine cooling circuit (2), a radiator (4), a branch pipe, a closed circuit (20) of a refrigerating fluid including an evaporator (22) and a condenser (24), an inner branch (B1) and an outer branch (B2) connected to switching means (36, 38) enabling them to be connected either to the evaporator (22) or to the condenser (24) so as to form inner and outer secondary loops. The engine cooling circuit (2) comprises a multichannel valve (V1) adapted to direct the heating medium either towards the branch pipe (12), or towards the evaporator (22). |
