Modular system for a 1-to-4 zone climate control system for vehicles

A method of assembling a modular 1 to 4 zone climate control device, the method comprising:

• providing a housing, an evaporator, a heater and a partition, the evaporator and heater and partition all being located within the housing and the partition dividing a total volume flow of the climate control device into two partial flows respectively, for left and right sides of the vehicle, a plurality of doors located within the housing and being selectively movable to open and close air channels defined within the housing;
• a further providing one of two exchangeable sets of parts, the two exchangeable sets of parts including a plurality of blind fittings and a plurality of additional doors;
• a mounting one of the two exchangeable sets of parts in engagement with mounting features formed in at least one of the partitions and the housing;
• wherein
• the plurality of blind fittings are engagable with the mounting features, the blind fittings being configured to close off additional flow paths associated with additional air channels and outlets defined within the housing;
• and
• the plurality of additional doors are engagable with the mounting features and are configured to selectively open and close the additional air channels and outlets.