Regelung eines Expansionsventils

摘要

An expansion valve control preferably residing in a microprocessor is responsive to a decision being made to deactivate one or more stages of compression. The control interrupts the deactivation and proceeds to calculate a new expansion valve position based upon the amount of capacity to be lost by the deactivated compressors. The expansion valve is commanded to move to the newly calculated position before the compressors are deactivated.