AIR-CONDITIONING CONTROL INTERMEDIATE DEVICE, AIR-CONDITIONING CONTROL SYSTEM, AIR-CONDITIONING CONTROL METHOD, AND AIR-CONDITIONING CONTROL PROGRAM

An object of the present invention is to provide a pleasant air conditioning environment in response to an air conditioning load imbalance in the implementation of separate air conditioning by making use of an existing air conditioning interface for central air conditioning, such as a thermostat. An intermediary device (10) for air conditioning control is connected to an air conditioning interface (20) for generating and outputting an operation/non-operation request signal to a heat source on the basis of a room temperature and a temperature setting. The intermediary device has a receiving unit (11), a temperature-setting estimating unit (13), and a transmitting unit (15). The receiving unit (11) receives the operation/non-operation request signal as input. The temperature-setting estimating unit (13) calculates an estimated value of the temperature setting on the basis of at least the operation/non-operation request signal. The transmitting unit (15) transmits to air conditioners the estimated value calculated in the temperature-setting estimating unit (13).