Favero CT1XW Mode D'installation page 5

3.2 CTx power supply circuits
The CTx requires a power supply as indicated in
chapter1.3.Technical features.
The 2 versions are:
3.2.1 Power supply circuit for the CTx version
100-240Vac
The cables entering the CTx through the
appropriate grommets (Fig. 4) must be
double isolation cables.
Connect the power supply conductors to the
terminals L and N of the power supply device, as
indicated in Fig. 5, by using the appropriate
provided terminal forks suitable for cables with
cross sections of 0.5-1.5 mm
To interrupt the supply of power to the CTx, use a
2A double pole residual circuit breaker with
overload protection and with threshold current Idn=
30 mA.
3.2.2 Power supply circuit for CT1w version
12Vdc
Place the provided power supply device inside an
electrical panel far from the shower area, following
the regulations in effect in the country in which
installation takes place. For example the IEC60364-
7 requires a distance of at least 3 m from the
shower tray (Fig. 1) or at least 3.6 m from the small
shower for hobless showers (Fig. 2).
For connections on the power supply 12Vdc placed
inside the electrical panel:
1) See Fig. 6.
2) Use the appropriate terminal forks provided,
which are suitable for use with cables with
cross sections of 0.5 – 1.5 mm
3) To connect the power supply device's 12Vdc
to the CTx, use cables with a cross section
2
of 1.5 mm and with a maximum length of 25
m. The power supply device comes provided
with an output voltage regulated at 12.5-13
Vdc in order to compensate for any voltage
drops in the cables.
To connect the 12Vdc of the power supply
device to the CTx see Fig. 7: use the
appropriate terminal blocks provided and suited
for use with cables with cross sections of 0.5-
2
1.5 mm .
3.3 Connecting circuit of the 12Vdc
solenoid valves
The solenoid valve should be connected to the
terminals of the electronic board as indicated in
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Fig. 1. Use a 12Vdc solenoid valve with a maximum
absorption of 8W. Use cables with a cross section
2
of 1.5 – 2.5 mm . A cross section of 1.5 mm
suffice if the length of the solenoid valve's
connecting cables is less than 20 m.
The output for shower 2 can be used as a
warning notice
connecting, for example, a signal light or
warning led. For more information on warning
notices, see the product manual.
3.4 Connecting circuit of the service
start/pause buttons
Fig. 5 shows the typical connection of start/pause
buttons. The buttons should be normally open. If
you do not wish to use the buttons, simply do not
connect them.
4 I
NSTALLATION OF THE SOLENOID VALVE AND
FILTER
For mounting (Fig. 8) follow the instructions below:
When mounting the solenoid valve and the filter
•
pay attention to the arrow found on each of
them, which indicates the direction of water flow.
The filter should be installed before the solenoid
•
valve in order to prevent impurities from
reaching the valve.
The solenoid valve can function in any position,
•
however it is advised to point the coil facing
upwards in order to prevent impurities from
accumulating.
Install the filter horizontally and with the filter
•
holder facing downwards in order to facilitate
the depositing of impurities at the bottom.
In order to function properly, the solenoid valve
•
needs a difference of pressure between the
entrance and exit of water of at least 0.3 bar.
This is ensured if the solenoid valve is inserted
in the shower spout or near to it.
00182-M02-04-ML Manuale installazione
ENGLISH
for end of shower
2
will
by