Water Pump - Miele CVA 610 Technical Information

CVA 610/CVA 615 Coffee Systems
switches are monitored by the electronic to determine the position of the brew unit.
Figure 4-17: Brew Unit Drive Assembly
4.15

Water Pump

The pump is self-priming and can develop a pressure of up to approximately 16 bar
(232 psi). For espresso preparation a pressure of approximately 8 bar (116 psi) is
required so that the water can be forced through the compressed ground coffee. A
further increase in pressure does not improve beverage quality.
The pump is fitted with a safety valve which opens at 16 bar (232 psi) system
pressure. If pressure is too high, water is passed from the safety valve via a hose to
the fitting plate and from there to the housing under the brew unit. The water is then
passed through the door rear panel to the drip tray.
The pump is connected in series with a temperature limiter. The temperature limiter
interrupts the power to the pump should a high temperature develop.
Figure 4-18: Water Pump
Technical Information
1 Home position switch
2 Home position switch actuator
3 Worm gear
4 Brew unit drive motor
5 Brew position switch actuator
6 Installation marking
7 Brew position switch
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