lbnl 45550 technical and economic analysis of energy efficiency chinese room air conditioners david fridley gregory rosenquist jiang lin li aixian xin dingguo cheng jianhong february 2001 department environmental technologies division lawrence berkeley national laboratory university california ca 94720 china institute standardization cnis beijing center becon this work was funded by the climate protection us agency through under contract no de ac03 76sf00098 abstract has experienced tremendous growth in production sales over last decade although minimum conditioner standards have been effect since 1989 efforts were made during most 1990 s to update standard be more reflective current market conditions but 1999 state bureau techni cal supervision sbts included their plan development revision signed an agreement with for training program supported en vironmental epa based on