Genesis B2C/Teapot, Техническое руководство

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Section 7 - Technical Information
7.1 Water Services
The mains water supply provides water for the heater tank fitted in Instant &
Freshbrew machines, or the pressure system fitted to Espresso (B2C) machines.
Water enters at the rear of the machine through a solenoid operated inlet valve
operating at 24v DC, which opens or closes the water supply as required.
7.2 Hot Water System
Instant and Freshbrew Machines
1. Water is heated in the heater tank to the required temperature by a
heating element rated at 2.4 Kilowatts. The mains voltage required for the
element is switched by a solid state relay, controlled by the vending
machine controller via an analogue signal transmitted by the thermistor
probe.
2. The water level inside the heater tank is controlled by a water level probe.
When the water drops below the required level, the controller board
operates the mains water inlet valve until the required water level is
restored.
3. A series of 24v DC control valves are mounted on the outside of the
heater tank. These supply heated water to each of the mixing stations
where ingredients are added to make the drink. The “hot water” valve
dispenses straight into the cup.
4. Should the inlet valve fail (or mains water supply be disabled), the
controller board will detect a fault after the inlet valve ‘open’ signal has
been active for 2 minutes and the required
water level has not been reached. At this
point the keypad will be disabled, all
outputs from the controller board
(including the heater element) will be
switched off and the LCD will show the
message opposite.
N.B. An illustration showing the parts breakdown for the Boiler Assembly
is included in Section 13 - Spare Parts (see page 171).
B2C (Espresso) Machines
The water system fitted to B2C machines is described in detail in Section 8 of
this manual (see page 82).
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Technical Manual
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