2/3 Boiler Water System T2-6 - WMF 800 Manual

Engineering
2/3 Boiler water system
Components:
• Water tank
• Flow meter
• Oscillation pump
• Hot water boiler
• Steam boiler
• Brewing water valve
• Hot water dispensing valve
• Safety valve
• Cappuccino valve
• Steam boiler inlet valve
• Release valve
• Steam jet valve (Steam Jet) (not for WMF 800)
• Air pump (WMF 1000 pro S only)
Steam boiler
Hot water boiler
Flow meter
Water tank
Oscillation pump
Functional principles of the water system
Fresh water is fed by the oscillation pump to the water tank into the hot water boiler.
The required amount is specified by the flow meter.
The oscillator pump produces, depending upon flow, a pressure between 3 and 15 bar.
The brewing water is brought from the hot water boiler through the brewing valve to
the brewing unit for brewing. After the brewing process, pressure in the brewing unit
is released through the release valve.
All amounts dispensed are monitored by the flow meter. The brew water withdrawal,
hot water withdrawal and the supply of the the steam boiler are mutually locked
out. While dispensing a beverage, the other beverage buttons are deactivated. The
steam boiler produces the steam needed for milk and milk foam preparation, and for
preheating the cups (Steam Jet.)
T2-6
Steam jet valve
Safety valve
16 bar
Steam boiler
Brewing water valve
inlet valve
3
Hot
water
Safety valve
valve
16 bar
5
Cappuccino valve
4
Air pump
Release valve
© WMF 800 / 900 / 1000 S / 1000 pro S Edition 07/2014 - KMT