Portofino America
rev. 5 - 08/2004
6
Operation of the Brasilia coffee machine
Hydraulic diagram
As can be seen from the hydraulic diagram, the water for preparing the coffee is not taken from the boiler, but comes directly from the water
mains and is heated in the heat exchangers by the heat of the water contained in the boiler. In the hydraulic diagram of the lever version it can
be seen that there is no pump and that the water in the boiler is the same as that is used for making the coffee (there is no thermosyphonic
circulation).
Wiring diagram
The machine is connected to the power supply network by means of the electric cord supplied. As we can see from the wiring diagram, there
are two circuits:
- power supply circuit for the operational electric components (solenoid valves, pump motor, electronic control centres).
- power supply circuit for the boiler heating element.
The main switch
The machine is fitted with a three-position power switch:
Position 0:
no power supply to the internal components
Position 1:
power supply to the operational electric components
Position 2:
power supply to the operational electric components and to the boiler heating element
INSTALLATION - LOCATION - START-UP
Precautions for installation
The manufacturer has obviously taken every possible precaution to guarantee user safety, but the different installation and/or transport
conditions could give rise to uncontrollable or unpredictable conditions; so it is always necessary to assess possible hidden hazards
and to consider the following suggestions:
- The packing elements (cardboard, cellophane, metal staples, etc.) can cut, wound or cause accidents if not handled carefully or if used
incorrectly; do not leave them accessible to children or unsuitable people.
- Any fault or defect should be promptly notified to the personnel who are qualified and authorized to carry out installation and maintenance.
- An earthing connection is mandatory, as is the system’s conformity with the regulations in force in the country of installation. The
manufacturer accepts no responsibility for accidents due to non-compliance with the regulations.
- The use of extensions or flying connections is prohibited. The working environment is heavily exposed to water and damp which
prevent the natural conditions for insulating the system.
- The machine must only be installed by authorized, qualified personnel.
- Check the condition of the components and, should defects or faults arise, stop the installation and ask for their replacement.
- Ensure that the power supply voltage (see rating plate) is the same as that of the mains supply network to be used in the place of
installation.
- The customer must provide for the machine’s power supply, protecting the line with a suitable safety cut-out (life-saver).
Fig. 1 Installation
1 - Mains electrical power supply
9 - Water mains tap
2 - Mains line switch
10 - Water mains supply line
3 - Power supply cord
11 - Pipe from water mains to water softener
4 - Main switch
12 - Water softener
0 - off
13 - Pipe from water softener to water inlet
1 - power supply to controls
14 - Manual water filling push-button
2 - power supply to heating elements
15 - Gas supply pipe
5 - Water inlet union
16 - Pipe from gas tap to gas regulator
6 - Drain tray
17 - Gas tap
7 - Drain pipe
8 - Main drain pipe
