Vehicle air-conditioner

An air-conditioner includes a compressor. The air-conditioner includes a first condenser positioned outside of a vehicle-compartment. The air-conditioner includes an expansion valve. The air-conditioner includes an evaporator positioned within an air-passage in the vehicle-compartment for introducing inside or outside air. The air-conditioner includes a second condenser positioned on downstream side of the evaporator in the air-passage. The vehicle air-conditioner has a heating operation mode and a cooling operation mode switchable therebetween. The evaporator and the compressor have an accumulator provided therebetween. The expansion valve opens, while refrigerant has temperatures at 0 DEG C or less on outlet side of the evaporator.