... cleaning system·2.Higher and lower voltage alerting·3.Low power consumption·4.Cone counting function·5.Cone counting ... indicating and formation animation display·9.Problems alerting system: low mix alert, belt skid alert, refrigeration trouble alert, switch trouble alert ... 3-9 minutesHumanization design, full automatic cleaning functionTiming mode ,low noise.Compressors are made in USA or France Frezon ...