| 摘要 |
PURPOSE:To control temperature in a room to be cooled with high accuracy by a method wherein temperatures in a room to be cooled are directly detected by a temperature detecting means to forecast temperature in said room after a predetermined time period based on the detected temperatures, and output capacity of a fan of an evaporator is controlled based on the differences between the forecast temperature and set temperature. CONSTITUTION:An output capacity controller 11 controls the output capacity of a fan motor 5 based on the difference between interior temperature calculated at a forecasting arithmetic logical unit 9 and predetermined set value set by an interior temperature set unit 10. That is, if the set value set by the unit 10 is lower than the interior temperature calculated at the unit 9, the controller 11 delivers signals to increase the number of revolution of the motor 5, so that the interior temperature converges to the set temperature. If the interior temperature calculated at the unit 9 is lower than the predetermined set temperature set by the unit 10, the number of revolution of he motor 5 is decreased to converge the interior temperature to the set value. |
