A renewal method of an air-conditioning unit for vehicle in which an air-conditioning unit using a former refrigerant disposed in a frame mounted on a vehicle is renewed to an air-conditioning unit using an alternative refrigerant, the renewal method including a removal step of: a removing the existing air-conditioning unit from the frame; an assembly step of disposing the new air-conditioning unit, which is configured so as to be capable of fitting in the frame, in the frame; and a filling step of filling the alternative refrigerant into the new air-conditioning unit. The circulating amount of refrigerant in the new air-conditioning unit is increased so as to be larger than that in the previous air-conditioning unit, and the heat exchange capacity per unit volume of each of the indoor heat exchanger and the outdoor heat exchanger is made larger than that before the renewal.


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    Titel :

    Renewal method of air-conditioning unit for vehicle and air-conditioning unit for vehicle


    Beteiligte:

    Erscheinungsdatum :

    13.02.2018


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES / F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht



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