To approach a room temperature sensor to an indoor unit in the ceiling and ensure proper room temperature control corresponding to the position of such a room temperature sensor.
An air conditioning system air conditions each room A to D (i=1 to 4) with an indoor unit 1 disposed in the ceiling. There are provided outlets 4a to 4c and a suction inlet 5d in the neighbourhood of the ceiling on the side of the indoor unit 1 of the rooms A to C and the room D. There are provided room temperature sensors 6a to 6c and 7 in the vicinity of the outlets 4a to 4c and the suction inlet 5b. Room temperature (Ta)i detected by the room temperature sensors 6a to 6c of the rooms A to C is corrected in response to a temperature difference ((Ta)i-Tk) between the room temperature (Ta)i and suction air temperature Tk detected by a suction air temperature sensor of the indoor unit 1, and hence room temperature (Taf)i after the correction is estimated. Room temperature (Ta)4 detected by the room temperature sensor 7 of the room D is equally rendered to only minus correction. The indoor unit 1 performs room temperature control of the rooms A to D (i=1 to 4) based upon the room temperature (Taf)i after the correction.
YAMAGISHI KATSUAKI
IMAMURA MASAKI
TOSHIBA CORP