2009年3月24日,由佛山市艾科电子工程有限公司主办的中央空调计费系统技术交流会在北京成功举行。中国制冷学会副理事长吴元炜,中国建筑科学研究院建筑环境与节能研究院院长徐伟等业内权威人士和来自北京各大设计院的30多位专家出席了本次交流会。会上,艾科电子总经理常文飞、 March 24, 2009, by the Electronic Engineering Co., Ltd. Foshan Echo hosted the central air-conditioning billing system technology exchange was held in Beijing. Wu Yuanwei, vice chairman of China Institute of Refrigeration, Xu Wei, director of the Institute of Building Environment and Energy Conservation, China Academy of Building Research, and other experts from the industry and more than 30 experts from major design institutes in Beijing attended the seminar. At the meeting, Echo General Manager Chang Wenfei,