A steam box on the shell is used for letting steam or back-water into condenser, and a drain box at the bottom with a liquid level indicator is used for inspecting the liquid level in the vessel.

• 冷凝器为卧式，壳体上设有膨胀节、蒸汽箱和冷凝箱，蒸汽箱供蒸汽和疏水进入器内，凝水箱上配有液位计，可观察器内水位高度。