SERVICE MANUAL
1 – G E N E R A L C H A R A C T E R I S T I C S
XP Controller manages SIATA multi-way
valves in order to realize water treatment
systems. The regenerative cycle, which
is completely programmable, can be
activated in either of the following ways:
- At the programmed time, after the
interval programmed days have elapsed
(chronometrical);
- At the programmed time, without
waiting for the interval programmed days,
when the treatable volume is exhausted
(volumetric delayed);
- immediately by means of the proper
key.
XP Controller is provided with a buffer
battery allowing to keep the working
parameters in the memory for about 6
months in the event of a supply voltage
failure.
XP Controller, as well as all the other SIATA
controllers, is compliant with the EEC
Directives and is built in the SIATA factory
in Montespertoli, Florence (Italy) working
with the Quality System certified
according to the following standard ISO
9001 / UNI EN ISO 9001.
2 – MEANING OF LEDs AND KEYS
Key functionality (Tab. 1)
- TIME OF DAY =
It allows to access the
time setting. At the end of programming,
it allows to program the regenerative
cycle steps.
- ADVANCE =
When pressed during
programming or time setting, it allows to
increase the digit blinking on the display.
From version 9/98, it allows to access
diagnostics.
- MAN. REGEN =
It allows to activate
regeneration manually. From version 9/98,
when pressed during a regenerative
cycle stop phase, it zeroes the phase
residual time and steps to the next phase
(Step-by-step).
- HIDDEN KEY =
It is placed on the left
hand side of the Time Of Day key and
allows to access the working parameters
programming.
In the volumetric version a LED is placed
on the left hand side of the panel blinking
in correspondence of the impulses sent
by the SIATA Hall effect magnetic sensor.
3 - GENERAL INFORMATION
Please find herewith below some
instructions to be followed during the
controller usage and maintenance in
order to ensure its long operating life.
3.1 – Packaging and storage
The package consists in a box with a
product identification label.
T h e d e v i c e m u s t b e s t o r e d i n
environments compliant with the
following characteristics:
- temperature 4°C and +40°C; -
relative humidity within 30 % and 95 %.
3.2 – Installation
The controller installation must be
performed by qualified technical staff;
Fig. 6 – Remove the screw and pull the
stems until they reach the position shown
below.
Fig. 7 – The final part of each stem is flat
and has two centering marks. Place the
cam edge on the space between those
marks. Make sure the stems are directed
inside so as to house the cam edge in
the best way possible.
Fig. 8 – Push the timer towards the valve
in order for the stems to go inside the
drivers and for the two check pins shown
in Fig. 7 to fit the proper holes. In the event
the check pins should break, it is possible
to replace them with brass pins code 117-
81
Fig. 9 – Fasten the timer to the valve using
the screw.
the installation procedures must be
p e r f o r m e d w h e n t h e d e v i c e i s
disconnected from power.
The device consists in an ABS case closed
on the front side by a cover blocked with
4 screws. As an optional, a transparent
cover is available that can be used as a
keyboard protection.
The controller is supplied by a 230 / 12
Vac transformer. Upon request, other
types of transformer are available (for ex.
115 / 12 Vac – 60 Hz).
In the volumetric version of the XP
Controller, the cable of the liter-counter
magnetic sensor comes out of the case
rear panel and must be inserted in the
proper casing on the SIATA valve or
turbine (Fig. 1).
In the chronometrical version of the XP
Controller the case does not have any
opening.
In the event you would like to feed the
controller external drivers
(see Fig. 3 and 4) with compressed air,
please make sure that:
• The air pressure be within 1 and 6 bar,
and however not higher than the input
water pressure;
• An air humidification system (with water
or proper silicone lubricant) is mounted
on the pneumatic line, in order to prevent
the driver internal seals from getting dry;
SIATA recommends to always supply the
pilots with water.
In this case it is necessary to use an input
filter to avoid impurities.
Please be particularly careful when
installing the controller in environments
that are not compliant with the
EN 50082-1 standard (electromagnetic
compatibility).
To install the timer
on the valve when it
has the drivers on board (valve 132) as
shown in the following figures, proceed
as follows:
Fig. 5 – The stems of the valve in the
package are nearly completely inserted
and the screw is placed in its casing.
Fig.1
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
XP
Siata
317
