de Jong Duke COEX 9CND SERIES, Техническое руководство, Страница: 26 / 93

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Level:
The level in the boiler is detected by the stainless steel housing of the sensor. The
boiler is connected to ground. On the housing is a positive signal from the control
system. If the sensor is in the water, current is able to pass through the water.
The control system is detecting the water level because of this current.
5.8 Position of valves in the hot water system
The manifold with valves is connected straight on the boiler with a bolt. This
connection is needed to keep the manifold with valves warm if the machine is not
used for a while.
Expansion valve
12-bar pressure
safety valve
2-bar pressure
valve
3-way coffee
valve
manifold
2-way hot water
outlet valve
2-way outlet
valve