Graf SILENTIO Operation manual

User information
“SILENTIO” system control
Fill level measuring device and drinking water supply
Article – No.: 351022
Otto Graf GmbH Carl- Zeiss- Str. 2- Tel.: [phone]
Kunststofferzeugnisse D 79 331 Teningen Fax: [phone]
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VEINLAND Gmb
[email protected]

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1: LED for power supply display
2: Display
3: LED for drinking water operation
4: LED for faults and malfunction
5: Operating buttons
6: Serial number
7: Lower cover of the System Control
8: Coupling for data lead
9: re-stamped breakthrough for upgrading features
10: Mains power coupling
11: The mains circuit breaker of the system controls are under this cover.
Picture 1: View of equipment
VEINLAND Gmb
[email protected]

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12: Data cable
13: screw cap 3
14: Connection of the data cable is reverse protected.
15: connect white cable here
16: connect red cable here
17: data cable terminal
18: screw cap 2
19: screw cap 1
20: active measuring length
22: Stainless steel probe
23: Tank floor
24: Screws must be blunted ! (danger of injury)
25: overflow
26: Tank side in dome
27: Sensor
28: Sensor control box ( measurement pick-up )
Picture 2: Sensor assembly

1. Safety Insructions
Please read carefully the safety and instruction manual before using this device!
Follow all instructions that are in the User Guide (Manual) to achieve the optimal
performance. Please keep these safety and operating instructions safe for further
use.
General Safety Instructions / Symbol Explanation
- refers to an information
- means warning and indicates a special situation
- indicates a hazardous situation which may cause to heavy or
serious injury or even death
1.1 Personnel
The installation, commissioning and dismantling of the device must be done only by
trained and authorized personnel. During installation, it is necessary to pay attention
to the safety regulations defined by the user and local laws and rules.
1.2 Proper Use of the Device
The equipment is designed exclusively for the intended purpose specified in the manual.
Any other use and / or misuse of the device can lead to unpredictable risks including death
and causes the loss of all the claims against the manufacturer.
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1.3 Limitation of the Liability
The manufacturer would not take over any liability for damages resulting from:
- the usage of the device by untrained and unauthorized personnel,
- use of device for not intended purpose
- opening and/or manipulation of the device
- not following the manual and safety instructions
1.4 Electric Current
!!Danger of life from electric current!!
Direct contact to the parts of the device will cause an electric shock. In case of
damage to the insulation, the device must be switched off immediately and the
damaged area must be de-energized.
While maintaining on the device, ensure that the power supply is off at all times
and make sure the device is de-energized.
1.5 Electrical Shock
If objects (e.g. hairpins, needles or coins) or liquids fall into the device, it can
cause life threatening electrical short-circuits, which can lead to fire. The user has
to make sure that above mentioned objects, especially made of metal and/ or
liquid things, will not fall in to the device intentionally or unintentionally.
1.6 Safety Operations
The operation and use of the device is to be done by instructed and authorized
personnel only.
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1.7 Power Supply
The equipment may only be operated with the operating voltage of 230V AC specified in
the user information.
A residual current circuit breaker (RCD) with a rated residual current not greater than
30mA must be provided, because it is a socket outlet circuit which is intended for use by
laypersons and for general use. The maximum permissible rated residual current for per-
sonal protection is 30mA.
For correct dimensioning of the residual current circuit breaker (RCD), the informa-
tion provided by the manufacturer of the pump you are using must be observed. A
residual current circuit breaker (RCD) of type B (universal current sensitive) is usually
sufficient. In some cases, however, a type F (mixed frequency sensitive) may also be
required.
Make sure to also observe the country-specific regulations.
1.8 Cable Connection
When installing the cable connections, the user needs to pay attention to the
safety regulations. Always pay attention to the connection to the protective earth
ground! ay attention when connecting with other devices, that those have to be
of the same earth potential (same heavy current/voltage side).
1.9 Ventilation
The equipment must be installed in so that good ventilation to the device is ensured. Do
not put any covering objects on the device, such as newspapers, books or towels.
1.10 Water and Moisture
The device is not allowed to operate in close vicinity of electrical conductive liquids
or moist areas. It is not allowed to place any liquid things on the device or in the
nearby area of the device.
Attention: Danger of Electric Shocks!
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1.11 Temperature and eat
The operating temperature of the device is defined in the specifications. The device must
not be placed near things which produce heat such as to blowers, heaters, furnaces or
other devices.
1.12 Opening the Device
Disconnect the mains plug before opening the device!
There is a risk of electrical shock when touching the parts inside the device. It is
not permitted to make any changes in the device.
1.13 Cleaning
Do not use any volatile solvents such as alcohol, diluents, gasoline etc. to clean
the device. Only use a dry, clean cloth.
1.14 Unusual Smell
If any unusual smoke or smell occurs, immediately switch off of the device and
remove it from the main power supply! Contact your dealer or the manufacturer.
1.15 Fuses
The replacement of the fuses in the device is only permitted by trained and
authorized technical staff.
The change of the fuses is only allowed when the device is switched off and is re-
moved from the main power supply. Otherwise there is a risk of electric shocks.
The security functions and safety values are mentioned in the manual. The guar-
antee for this equipment will expire in case of using other fuses than those speci-
fied in the manual.
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1.16 Repairing
The user is not allowed to perform the maintenance work by himself, except for those
specified in the manual. All maintenance and repair work must be done by trained and au-
thorized technical personnel.
1.17 Important notes of safety
Please, read and follow safety instructions carefully before assembly or using the
device!
The mounting position must be suitable for a safe and secure routing and connecting of
the cables. The cables may not be damaged or squeezed by some other inappropriate ob-
jects. lan the mounting position so that the optional plug in power supply unit can be
reached and removed easily from the socket should the situation dictate!
lease ensure that unattended children may not play with the equipment or cables.
We accept no responsibility for damage caused through not following this user information
or through improper handling of the equipment.
2. Description and intended use
The “SILENTIO” is an electronic water management control system. It has been de-
veloped especially for rain water usage systems. The device is intended for use in a do-
mestic environment. It can be used with a wide variety of tank systems. Tanks made from
metal or steel reinforced cement may only be used when the following conditions have
been correctly followed. Metal tanks lead to faulty readings. Helpful is to assemble the
device so that the sensor is as far as possible from the metal sides so for example, in the
centre of a cylindrical tank.
The device must be operated on a circuit which is protected by an RCD for personal pro-
tection (see point 1.7).
The operation of the system control is to be checked at regular intervals (at
the latest every 4 weeks).
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3. Description
The system controls offer an easy to use guide for the switch programming. Using an LCD
display the fill measurement is shown in 1 % stages (in relation to the height of the
tank).The sensor operates with a 12 volt supply. All programmed values such as the tank
height are retained after disconnection of the power supply or after a power-cut.
Performance features:
–Fill level measurement readout in 1% steps and with an additional bar type indicator
–In 1% steps freely variable choice of the switching points for the drinking water refill
–Automatic flushing of the system (choice of intervals in day and time are possible)
–Dialogue oriented user guidance (choice of language)
–Equipment indication using 3 additional LED
–Supervision of the measurement pick-up and the sensor
–Error indications in plain text
Technical data:
Control electronics Measurement sensors
Operating voltage : 230V AC Measurement voltage : 12V DC
Fused : 50mA slow-blow Measuring frequency : (0,2-20)kHz
ower consumption : 3VA Data cable length : 20m (ma . 50m)
Tank height : 3m (optional 6m)
Measurements [mm] : 155x165x90 Measurements [mm] : 90x80x50
Additional pumps connection Filter cleaning valve connection
Operating voltage : 230V AC Operating voltage : 230V AC
ump capacity : max. 850VA Output current : max. 1A
Only the control electronics in the device are protected by the fuse. Valves and
pump connections are not protected. These are protected only by the mains sup-
ply via the mains fuse.
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The yellow LED indicating “Drinking water operation” is lit as soon as the valve
switches over to the mains supply. The user is made aware that the system now
uses water from the mains supply. The red LED for “Faults and malfunctions” is lit
as soon as the system identifies a fault. The display will then show a warning that
describes the cause of the fault in plain text.
4. Assembly
4.1 Control system
The electric mains supply plug acts also as the ON/OFF switch.
Before opening the equipment pull the plug out from the mains socket!
The system control is integrated as standard in the basic „SILENTIO“ device from the com-
pany Graf. Caution: Always remove the plug from the mains socket before opening the
lower cover [7] of the system control housing!
4.2 Connection sensors and data cable
The sensor electronics comprise of a stainless steel probe [22] with a red and a white
connecting cable [27] and the sensor measurement pick-up [28].
1. Now the sensor measurement pick-up [28] (cover removed) should be installed on
the tank wall (preferably in the man hole shaft of the Graf synthetic tank). The
location of the mounted sensor pick-up should be between 10 and 15 cm above the
overflow [25]. The enclosed screws should be used to secure the device. After fully
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Picture 3: Sensor technology

tightening the screws, the points that are showing themselves on the outside of the
tank must be blunted to avoid injury [24].
2. Measure the height from the bottom of the tank [23] to the end of the terminals [15]
and [16] on the measurement pick-up [28].
3. Shorten the connection cable to suit the measured height.
4. Connect the sensor cable to the sensor as described in the following instructions:
Remove between 5-7 mm of the insulation from both of the cables. Next, pass the
red cable through the screw mounting 1 [19] and tighten this lightly, then connect
the red cable to the terminal [16]. The free white cable is now passed through the
screw mounting 2 [18] and tightened lightly, then connect the white cable to the
terminal [15].
5. Now pass the end of the data cable that has no plug connector [12] through the
screw mounting 3 [13]. Lightly tighten the screw mounting and connect the cable
wire cores of the data cable [12] to the double terminal [14]. The connection of the
data cable is reverse polarity protected. Attention! The screws should be
tightened with care to ensure that they are not damaged through over
tightening.
6. Now recheck that all the screwed items and the sensor components have been
fitted correctly. Replace the cover of the measurement pick-up and secure this with
the appropriate fastening screws.
7. The installation of the data cable [12] to the system control must be according to
good professional practice to constitute a correct completion of the sensor
technology: A protective cable conduit must be used. (The data cable is not
suitable for installing directly in the earth).
The end of the data cable that is still unconnected is fitted with a plug connector.
This is to be plugged into the appropriate socket [8] of the system control. Diagram
2 on page 3 makes clear the interrelation.
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The red and the white cable going down to the probe should be straight and
smooth to be drawn taught by the weight of the stainless steel probe. The stainless
steel probe must hang just above the tank floor.
4.3 Electrical connection of the filter flushing valve
Before opening the equipment pull the plug out from the mains socket!
The connection of the valve for cleaning the rainwater filter is optional. If running the
system without the rainwater filter please read on from point 5 ( utting into operation).
Before connecting the Rainwater usage system, please ensure there is no over
straining or tension on any of the connections. The plug of the system control unit
must not be connected to the socket of the electrical supply. ass the end of the cable
from the solenoid valve for the rainwater cleaning filter through the threaded grommet
holder provided with the housing of the SILENTIO system control. Now open the lower
housing cover [7] of the system control (see Figure 1). The openings for the threaded
grommet holders are pre-stamped to ease breaking out. Break out the opening for the
threaded grommet holder with an appropriate tool such as a small screw driver. Fit the
supplied threaded grommet holder into the opening and secure with the locking nut from
the inside. Isolate the wire cores of the cable in the proper manner. ass the cable through
the grommet opening in the system control unit housing. Connect the protective earthing
conductor (green - yellow wire core) to a free terminal with the designation “PE / Ground”.
Connect the neutral wire core (blue) to a free terminal with the designation “5”. Connect
the live electrical supply wire core (brown or black) to a free terminal with the designation
“3” (power supply to the filter flushing valve). The following figure depicts the connections
described above:
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1: ump
2: ower supply to additional pump
3: Power supply to filter flushing valve
4: ower supply to switch-over valve
5: Neutral conductor
: 230V AC
E/Ground: Earth
After connecting the wires, close the lower cover [7] of the system control housing.
4.4 Electrical connection of the additional pump
Connection of the additional pump is optional. If running the system without the additional
pump please read from point 5 (putting into operation). The activation of the connection for
the additional pump take place at the same time as the house water system. At pressure
build-up through the house water system (pump running) is the additional pump connec-
tion switched on.
Before opening the equipment pull the plug out from the mains socket!
The plug of the system control unit must not be connected to the socket of the electrical
supply. An earth cable is absolutely necessary for connection of the additional pump. We
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Picture 4: Electrical diagram for filter flushing valve

advise that this cable should be protected by a pipe running from the holding tank to the
rainwater usage system. ass the end of the cable through the threaded grommet holder
provided with the housing to the SILENTIO system control. Now open the lower cover of
the system control housing (see Figure 1). Remove the blind screw and replace this with
the supplied threaded grommet holder. Isolate the wire cores of the cable in the proper
manner. ass the cable through the grommet opening in the system control unit housing.
Connect the protective earthing conductor (green - yellow wire core) on a free terminal
with the designation “PE / Ground”. Connect the neutral wire core (blue) on a free termin-
al with the designation “5”. Connect the live electrical supply wire core (brown or black) on
a free terminal with the designation “2” (power supply to the additional pump). The follow-
ing figure depicts the connections described above:
1: ump
2: Power supply to additional pump (for SILENTIO Press)
3: ower supply to filter flushing valve
4: ower supply to switch-over valve
5: Neutral conductor
: 230V AC
E/Ground: Earth
After connecting the wires, close the lower cover [7] of the system control housing.
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Picture 5: Connection diagram for additional pump

5. Putting into operation
Before putting into operation, please be absolutely sure that all the live wires and electrical
terminals are correctly insulated and that the protective covers are in position throughout
the system. Now open the transparent cover of the system control. Now plug in the system
to the appropriately fused socket for the system. The system will now independently run
through a systems check. For the duration of the systems check (approximately 10
seconds) the display will read as follows.
Instead of “xx” the software position will be shown.
In the first line the system type will be shown and in the second line the software position
will be shown. After the correct initialisation of the system installation has been acknow-
ledged the LCD display will show the fill level as a percent (%).
The first running of the unit will show the fill level reference point that is according
to the standard factory setting tank height Standard factory setting values:
Tank height to overflow : 200cm (+/- 1cm)
Drinking water switching point : ON at 10% / OFF at 12%
Flushing the drinking water system : after 14 days for 30 seconds
Cleaning the rainwater filter : after 14 days for 5 seconds with rainwater
Language : German
Figure 7 shows the LCD display in operation mode. Except for the fill level and the switch
positions “FV” and “ ” the display should correspond with the intended default.
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Picture 6: Display for the duration of the systems check

6. Set up of the system control
After putting into operation, the system control must be adjusted and programmed accord-
ing to the conditions and requirements of the individual users system. The required set-
tings are easily programmed. There are four buttons for this purpose. All necessary pro-
gramming data entries follow a menu displayed by the LCD. For the set up follow all the
points listed in table 1 in the sequence as shown. Should any error in the sequence occur
then it is necessary to begin the set up again from the beginning starting with the tank
height. Begin the programming of the settings by pressing the button marked “MENU”.
With the buttons “ “ or “ “ the menu may be scrolled backwards and forwards.
With the respective menu point shown the values may be altered. For this the button “OK”
must be used. The “?” displayed in the LCD will now change to a “>”graphic character.
With the “ “ or “ “ the desired value may now be entered according to individual
requirements. When the desired value has been entered this must be confirmed by
pressing the “OK” button. The value is only then taken over and stored in the programming
of the unit.
Through pressing the “MENU” button again the display changes back to the operation
mode. It is possible to reset the unit to the factory setting standard values at any time. The
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29: Status of valve for rain water filter FV+ : Filter valve open
30: Status of house water system ( ump) FV- : Filter valve closed
31: Visual representation of fill level P+ : House water pump running
32: Fill level % P- : No water being with drawn
Picture 7: Display in operation

resetting can only be carried out in the operation mode (Display see Figure 7).
To do this press the “OK” button and hold it pressed. Now simultaneously in addition press
the “MENU” button. After a short wait the following display will be shown:
As soon as this message is displayed the buttons may be released.
The menu structure integrated in the system control is introduced to familiarise the user in
diagram 9. To bring up the menu, press and hold the „MENU“ button for longer than 5
seconds. All outlets are inactive when the menu level has been activated. The operation of
the device is suspended. The system control switches automatically back to the operating
mode when no entries have been received for approximately 30 seconds.
Key „MENU“ (>5s)
ress the “OK” button to arrive at each of the listed sub-menu functions. Through pressing
the “MENU” button again the display changes back to the operation mode.
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Picture 8: Message reset to standard factory settings
DEFAULT VALUES
23%
SWITCHING OINTS
DEVICE
ADJUSTMENT
MANUAL O ERATION
TANK: FV- +
23%
Picture 9: Main menu level
Key “OK” Key “OK” Key “OK”
SWITC ING POINTS
Key „OK“
VALVE ON
0-100% 10%
VALVE OFF
0-100% 12% Supply with mains drinking water – OFF
Act on the port switch-over valve.
Supply with mains drinking water – ON (The numerical value is always smaller
than with valve OFF)
Act on the port switch-over valve.
Main menu level

ress the „OK“ button to alter the respective switching points The value to be altered will
begin to blink. The value may then be adjusted by using the and the buttons. ress the
“OK” button again when the displayed value should be accepted.
In the depiction 10 the standard factory settings have been displayed.
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DW INTERVAL
0-14 DAYS 14
Flush the drinking water supply piping every 14 days. The value „0“ switches the
flushing off.
Act on the port switch-over valve.
Flushing the drinking water supply pipes for 30 seconds.
Act on the port switch-over valve.
DW DURATION
0-60 SEC 30
Cleaning the rainwater filter every 14 days.
The value 0 switches the cleaning process off.
CLEANER INTERVAL
0-14 DAYS 14
Cleaning the rainwater filter for 5 seconds
CLEANER DURATION
0-60 SEC 5
CLEANER RINSE AT
INCREMENT 2%
Cleaning the rainwater filter when the fill level has increased by 2% after rainfall. If
the fill level continues to increase, the rinsing will be repeated every 3 hours. The
value 0 switches the cleaning process off.
CLEANER RINSE
WITH DW NO ermit the cleaning of the rainwater filter with mains drinking water (standard:
“NO”)
Picture 10: Sub-menu “Switching points”

The following is an introduction to the general device settings:
The last part of the operation level covers the manual functions:
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DEVICE
ADJUSTMENT
LANGUAGE
ENGLISH
Key „OK“
[20] in Figure 2
(A 6m Sensor may be ordered.)
MEASURING LENGHT
30-600cm 200
Picture 11: Sub-menu “General device description”
Main menu level
MANUAL OPERATION
LAST FLUSH
DW 0
key „OK“
HAND FLUSH
DW NO
Time scale in days; the time elapsed since the last flush using mains drinking
water
LAST RINSE
CLEANER 1
HAND RINSE
CLEANER NO
Time scale in days; the time elapsed since the last filter rinse
Picture 12: Sub-menu “Manual functions”
Activation of the filter rinse
Activation of the flushing process for the mains drinking water inlet pipe. The
switch-over valve remains permanently switched on. The yellow LED blinks. The
system is using mains drinking water !
Main menu level

7. Error messages and fault correction
The operation of the system control is to be checked at regular intervals (at
the latest every 4 weeks).
The read out reports always represent only probabilities; e.g. no clear localization by the
device is possible for overlaying faults.
Please also take note that the system control device cannot identify any
malfunction of the house water system. (No malfunction signal is supplied by
the house water system to the system control device).
If faults are recognized by the sensors the system control cannot continue to work inde-
pendently. The particular faults are shown on the plain text in the display:
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ERROR
SENSOR
The reason for this error is that the white sensor cable has been damaged.
ERROR
DL SHORT CIRCUIT
Error possibilities:
The data cable of the measurement pick-up is not connected to the data cable
terminal [14] but has been connected to the sensor terminal [15/16] -
- Cinch plug or the cinch connector has a short
circuit
- Wires of the data cable have been damaged
ERROR
SENSOR CONTROL
The measurement sensor delivers no signal and must be replaced.
ERROR
SENSOR SYSTEM
For further diagnosis, remove the stainless steel weight [22] out of the water. If
the error indication has now stopped, then the sensor it self was the cause of the
fault. If the error indication should continue, this implies that the measurement
pick-up is defect.