注：热水供应进口端连接到阀门的“H”一侧，冷水供应连接到另一侧“C”上，混合水的出口连接到“M”一侧。
Note: the inlet hot supply is to be connected to the "h" side of the valve, the cold supply side to the "c" side and the mixed water outlet to the "m" side.
注：热水器可以直接或间接加热。
为了研究制冷剂充注量对小型空气源热泵热水器性能的影响，进行了不同充注量实验。
In order to study the effects of refrigerant charge on the performance of a small-sized heat pump water heater, many experiments under different charge were carried out.
而注表面活性剂和聚合物的复配体系段塞后热水驱虽然提高采收率幅度较大，但吨油新增成本较高，经济上不合理。
The surfactant and polymer mixed system slug is well on recovery ratio but the additional cost of ton oil is higher, economic benefit is not satisfactory.
注：饮用水膨胀罐应该安装在热水器的供水端的冷水维修管道上。
Note: the potable water expansion tank shall be installed in the cold water service pipe line on the supply side of the water heater.
注：饮用水膨胀罐应该安装在热水器的供水端的冷水维修管道上。
Note: the potable water expansion tank shall be installed in the cold water service pipe line on the supply side of the water heater.
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