为什么要平衡系统？
why balance your system?

　　无论一个系统适用于供暖、空调或水分配，都必须适当的调节和平衡，以优化结构性能。一个不平衡的系统可能导致不同房间的温度差异达到7^oC，通常这种现象会造成能量成本增加35%以上。
　　Whether a system is designed for heating, cooling or water distribution it must be properly adjusted and balanced for optimum design performance. An unbalanced system may produce temperature variations of up to 14^oF between rooms, which can typically add up to 35% to energy costs.
　　如果在系统中安装相称的预先设置和精确压降计算的装置，就会节省珍贵的时间和金钱。
　　Valuable time and money can be saved when the system being installed matches a pre-determined design and accurate pressure-drop calculations have already been made.

优点是什么？
what are the benefits?

• 一个平衡的系统确保一个舒适的室内环境
  A balanced system ensures a comfortable indoor climate
• 调整锅炉和制冷机的流量
  The correct flow in boilers and chillers
• 将所需要的流量分布到整个建筑物
  The desired flow distribution throughout the building
• 节约能源和成本
  Energy savings and cost savings
• 无故障操作和易于维护
  Trouble-free operation and ease of maintenance
• 较低的采购成本
  Lower capital costs