English to Swedish Tech/Engineering Electronics / Elect Eng Coffee machine

"Check air break and open the inlet valve to fill water if not full."
"When the machine is delivered from the factory, neither the boiler nor the air break tank (a small deposit inside the machine) is full of water."

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"The air-break’s function is to keep the water level constant and to signal a water flow interruption from the mains; in the event of such water failure the current selection can be completed. In addition, it serves the purpose of holding a reservoir of water at normal atmospheric pressure, so that the pump can draw the correct water dose for the selection and deliver it to the Espresso boiler without changes in pressure that may affect the volumetric counter reading."