Electric Supply; Preliminary Operations; Installation And First-Time Start-Up - Rancilio CLASSE 10 USB S Original Instructions Manual

that the water meets all the foregoing requirements.
For machine installation it is necessary to use all the
components and/or parts supplied on issue with the
machine. Should it ever be necessary to use other
parts and/or components, the installation technician
is required to verify that said other parts and/or com-
ponents are suitable for contact with water for human
consumption/drinking water. The technician in charge
of installation is required to perform all the hydraulic
connections so that they are totally compliant to all
the related rules, regulations and provisions in force
in the installation site on hygiene, hydraulic system
safety and environmental protection.
The machine with gas heating must be instal-
led in compliance with current local laws.
3) Gas supply pipe 3, with a cutoff tap.
For additional information on machines
equipped with supplementary gas heating
options, please consult the user's manual
provided together with the gas kit, supplied
on issue with the machine.
4) Main switch
5) Softener

6.1.2. Electric supply

The machine is supplied ready for connection
according to the required electrical specifications.
Before connecting the machine ensure that the plate
details comply with those of the electric distribution
network.
The electrical connection cable must be directly
connected to the connection provided according to
current legislation. Ensure that the earthing system
is efficient and in compliance with current legal re-
quirements.
The earthing system and the lightening protection
system must be realized in accordance with the
provisions of current legislation.
For the supply network use a cable in compliance with
standards with protective conductor (earthing wire).
For three-phase power use a cable with 5 conductors
( 3 phases + neutral + earth).
For single phase power supply use a cable with 3
conductors (phase + neutral + earth).
In both cases it is necessary to provide an automatic
differential switch (Fig. 6) at the start of the power
cable, complete with magnetic release elements in
accordance with the identification plate details (Fig.
1). The contacts must have an opening of equal or
over 3 mm and with dispersed current protection of
30 mA.
Remember that each machine must be fitted with its
own safety elements.
WARNING:
Should the power supply cable be damaged
it is to be replaced by the manufacturer or by
its technical assistance service or by person
with equivalent qualification, in order to pre-
vent any risks.
6.2. Preliminary operations (Fig.7)
P O T E N T I A L - E Q U A L I Z I N G
CONNECTION
This connection, which is the one called for by several
norms, avoids electrical potential differences, building
up between any equipment that may be installed in
the same room. There is a terminal clip on the under
side of the base of the machine to which an external
potential-equalizing wire should be connected.
This connection is ABSOLUTELy NECESSARy and
must be made right after the machine is installed.
Use a wire whose cross-sectional area conforms to
the existing norms.
6.3. Installation and first-time start-
up
 Position the machine unit onto the horizontal sur-
face provided for that purpose and adjust the base
feet to ensure that the machine is stable and that
vibrations are limited.
Before connecting, thoroughly wash the mains water
pipes:
 Leave the water supply taps running at full pres-
sure for several minutes.
 Connect to the mains water supply.
 Connect the machine up to the power supply
mains.
 Connect the gas pipe
Thoroughly wash all the water pipes of the machine:
 Leave the water supply taps running at full pres-
sure.
 Switch on main switch 1 (Fig.8): wait until the boiler
fills up to the level set.
 Boiler resistance switch2 (Fig.8) to begin heating
the water in the boiler.
 Once standard machine work conditions have been
reached with the machine in "ready for operation"
mode, switch the machine off and empty all the wa-
ter filled into the water circuit the first time, thereby
eliminating any possible initial impurities.
 Fill the machine up with water again and set it into
standard operation mode.
 Once the "ready for operation" status is reached:
- Connect the filter-holders to the dispenser units
(without coffee); operate each group head in order
to allow the water to escape for about one minute.
- Dispense hot water until at least 2 liters of water
have been dispensed from the 1-group or 2-groups
compact, 5 liters from the 2-groups machines, 8
liters from the 3-groups machines and 11 liters
from the 4-groups machines.
- Open each steam dispensing point for 1 whole
minute.
Once installation is terminated, the installa-
tion technician MUST issue an installation
report.
71