of the right and the left front seats substantially equally conditioned u201c first air conditionable air flows 8 u201c first front right 8 a u201d and u201c first front left 8 b u201d exit the outlets 42 a 42 b 44 a 44 b further substantially equally conditioned air conditionable air flows u201c second front right 9 a u201d and u201c second front left 9 b u201d the temperature of which is correlated with the u201c first air conditionable air flows 8 u201d exit the outlets 46 a 46 b additionally further rear zone connecting outlets 76 a 76 b that are disposed in the region of the two mixing chambers 12 a 12 b may be provided on the base member 34 of the main air conditioning module 2 they permit to directly connect the supply lines for the rear zone not shown given individual adjustment is not desired in the rear zone one or two zoned air conditioning system if a three or four zoned air conditioning system is realized these additional outlets 76 a 76 b provided on the main air conditioning module 2 remain closed as shown in fig1 a fig1 b shows the various outlets for air conditionable air flows that are formed on the multiple zone module 10 u2032 by providing a centrally disposed parting plane the single zone multiple zone module 10 u2032 shown may be developed in a simple manner to achieve a.