Patent ID: 7513123
Filing Date: 2009-04-07
Classification: F24F,F25B

Abstract:
1. A method of controlling variable operation of a unitary air conditioner, the method comprising: when a unitary-capacity operation signal is inputted from a thermostat, determining a start operation stage of an outdoor unit based on a previous operation defined by a weighted value of an operation stage of the outdoor unit operated before the operation signal is inputted-and the operation time in the stage, the determining comprising: dividing the operation stage into high, middle, and low operation stages, setting the high operation stage to a value A, the middle operation stage to a value B, which is lower than the value A, and the low operation stage to a value C, which is lower than the value B, according to an operation capacity weighted value of the operation stage, the unitary air conditioner being operated in the high operation stage for a time t determining a next operation stage in accordance with an integrated value X, wherein X is defined by the equation X=A×t