The operation mode with water tank in which the hot water flows through the solar collector first and then the buried coil is preferable . Operation Adjustment In The Initial Period Of Heating

有 蓄热 水箱时的联合供暖运行模式二（集热器与埋管串联运行， 载热流体先经过埋 管后进入集热器）的效果最佳。供暖初期的运行调节