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Technical Information
CVA615 Coffee System
4.16 Water Pump
The pump is self-priming and can develop a pressure of up to approx. 16
bar. For espresso preparation a pressure of approx. 8 bar 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 system
pressure. If pressure is too high, water is passed from the safety valve via
a hose
The pump is connected in series with a temperature limiter. The
temperature limiter interrupts the power to the pump should a high
temperature develop.
4.17 Flow Meter
All water taken from the water container flows through the flow meter. The
flow meter passes signals to the electronic unit proportional to the
quantity of water passing through it.
The electronic unit then establishes the quantity of water that has flowed
and stores the figure. Approx. 300 pulses from the flow meter indicate a
flow of 3 ounces of water.
The electronic unit controls the required water quantity for beverage
preparation and ensures that it remains constant. The service mode can
be used to check the proper operation of the flow meter. See section 6 –
Service Mode for further information.
4.18 Heaters
Coffee / Hot Water Heater 1R1 & 1R2
Voltage 120V
Power rating 275W and 1090W
Steam Heater 2R1
Voltage 120V
Power rating 1100W
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