Graf SILENTIO Operation manual

User information
„SILENTIO“ system control
Fill level measuring device and drinking
water supply
Item no.: 351022
Otto Graf GmbH Carl-Zeiss-Str. 2-6 Tel .: [phone]
unststofferzeugnisse D-79 331 Teningen Fax: [phone]
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Figure 1: View of equipment
1: LED for power supply display
2: Display
3: LED for drinking water operation
4: LED for faults and malfunction
5: Operating uttons
6: Serial num er
7: Lower cover of the System Control
8: Main connection ca le with power coupling for data lead
9: Pre-stamped reakthrough for upgrading features
10: Mains power coupling for data lead supply ca le
11: The mains circuit reaker of the system controls are under this
cover.
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Figure 2: Sensor assembly
12: Data ca le
13: screw cap 3
14: Connection of the data ca le is reverse protected.
15: connect white ca le here
16: connect red ca le here
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17: data ca le terminal
18: screw cap 2
19: screw cap 1
20: active measuring length
22: Stainless steel pro e
23: Tank floor
24: Screws must e lunted ! (danger of injury)
25: overflow
26: Tank side in dome
27: Sensor
28: Sensor control ox ( measurement pick-up )
1. Safety Instr ctions
Please read caref lly the safety and instr ction man al before sing this
device! Follow all instr ctions that are in the User G ide (Man al) to achieve
the optimal performance. Please keep these safety and operating instr ctions
safe for f rther se.
General Safety Instr ctions
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 e done only y trained and authorized personnel. During
installation, it is necessary to pay attention to the safety
regulations defined y the user and local laws and rules.
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1.2 Proper Use of the Device
The eq ipment is designed excl sively for the intended p rpose specified in
the man al. Any other se and / or mis se of the device can lead to npre-
dictable risks incl ding death and ca ses the loss of all the claims against the
man fact rer.
1.3 Limitation of Liability
The manufacturer would not take over any lia ility for damages resulting from:
- the usage of the device y 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 C rrent
!!Danger of life from electric c rrent!!
Direct contact to the parts of the device will cause an electric shock. In
case of damage to the insulation, the device must e switched off
immediately and the damaged area must e 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 Electric Shock
If o jects (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 a ove mentioned o jects, 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 e done y instructed and
authorized personnel only.
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1.7 Power S pply
The equipment exclusively operates with the operating voltage indicated in the
manual.
1.8 Cable Connection
When installing the ca le connections, the user needs to pay attention to
the safety regulations. Always pay attention to the connection to the
protective earth ground! Pay attention when connecting with other
devices, that those have to e of the same earth potential (same heavy
current/voltage side).
1.9 Ventilation
The equipment must e installed in so that good ventilation to the device is
ensured. Do not put any covering o jects on the device, such as newspapers, ooks
or towels.
1.10 Water and Moist re
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 near y area of the device.
Attention: Danger of Electric Shocks!
1.11 Temperat re and Heat
The operating temperature of the device is defined in the specifications. The device
must not e placed near things which produce heat such as to lowers, heaters,
furnaces or other devices.
1.12 Opening the Device
Disconnect the mains pl g 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.
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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 Un s al 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 F ses
The replacement of the f ses in the device is only permitted by
trained and a thorized technical staff.
The change of the fuses is only allowed when the device is switched off
and is removed 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 guarantee for this equipment will expire in case of
using other fuses than those specified in the manual.
1.16 Repairing
The user is not allowed to perform the maintenance work y himself, except for
those specified in the manual. All maintenance and repair work must e done y
trained and authorized technical personnel.
1.17 Important notes on safety
Special Safety Instr ction
Please, read and follow safety instr ctions caref lly before assembly or sing
the device!
During installation and when working with 230 V ~ mains supply the VDE
regulations must e followed. Equipment using a 230 V ~ supply may only e
installed and commissioned y a qualified tradesman. The assem ly place must
allow all possi le safety precautions when laying the attached ca les.
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Power supply ca les and data ca les may not e damaged or squeezed for any
reasons. Plan the assem ly place so that you can reach the mains plug easily and
unplug it from the electrical outlet in dangerous situations.
Choose the assem ly place so that children cannot play or e near to the device and
at its connections without supervision.
Before opening the device disconnect it from the mains supply (unplug) otherwise
there is a serious danger of an electrical shock.
Fuses may only e replaced with standard-compliant parts with the same nominal
value.
All lia ility is excluded for damages which result from non-compliance of these
instructions or from an improper handling of the device. At chosen intervals in this
hand ook we will give directions for safety precautions. These safety precautions
have een specially marked.
2. Description and intended se
The “SILENTIO” is an electronic water management control system. It has een
developed especially for rain water usage systems. It can e used with a wide
variety of tank systems. Tanks made from metal or steel reinforced cement may
only e used when the following conditions have een correctly followed.
Metal tanks lead to faulty readings. Helpful is to assem le the device so that the
sensor is as far as possi le from the metal sides so for example, in the centre of a
cylindrical tank. 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.
3. Description
Performance features:
– Fill level measurement readout in 1% steps and with
an additional ar type indicator
– In 1% steps freely varia le choice of the switching
points for the drinking water refill
– Automatic flushing of the system (choice of intervals
in day and time are possi le)
– 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
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Technical data:
Control electronics Meas rement sensors
Operating current :230VAC Measurement voltage :12DC
Fused :T50mA Measuring frequency :(0,2-20)kHz
Power consumption :3VA Data ca le length :20m
Tank height :3m (optional 6m)
Measurements [mm] :155x165x90 Measurements [mm] :90x80x50
Additional p mps connection Filter cleaning valve connection
Operating voltage :230V AC Operating voltage :230V AC
Pump capacity :max. 850VA Valve effective performance : max. 1A
Notes:
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 supply via the mains fuse.
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 eq ipment p ll the pl g o t from the mains
socket!
The system control is integrated as standard in the asic „SILENTIO“ device from
the company Graf. Caution: Always remove the plug from the mains socket efore
opening the lower cover [7] of the system control housing!
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4 .2 Connection sensors and data cable:
The sensor electronics comprise of a stainless steel pro e [22] with a red and a
white connecting ca le [27] and the sensor measurement pick-up [28].
Figure 3: Sensor technology
1. Now the sensor measurement pick-up [28] (cover removed) should e
installed on the tank wall (prefera ly in the man hole shaft of the Graf
synthetic tank). The location of the mounted sensor pick-up should e
etween 10 and 15 cm a ove the overflow [25]. The enclosed screws
should e used to secure the device. After fully tightening the screws, the
points that are showing themselves on the outside of the tank must e
lunted to avoid injury [24].
2. Measure the height from the ottom of the tank [23] to the end of the
terminals [15] and [16] on the measurement pick-up [28].
3. Shorten the connection ca le to suit the measured height.
4. Connect the sensor ca le to the sensor as descri ed in the following
instructions: Remove etween 5-7 mm of the insulation from oth of the
ca les. Next, pass the red ca le through the screw mounting 1 [19] and
tighten this lightly, then connect the red ca le to the terminal [16]. The
free white ca le is now passed through the screw mounting 2 [18] and
tightened lightly, then connect the white ca le to the terminal [15].
5. Now pass the end of the data ca le that has no plug connector [12]
through the screw mounting 3 [13]. Lightly tighten the screw mounting
and connect the ca le wire cores of the data ca le [12] to the dou le
terminal [14]. The connection of the data ca le is reverse polarity
protected. Attention! The screws sho ld be tightened with care to
ens re that they are not damaged thro gh over tightening.
6. Now recheck that all the screwed items and the sensor components have
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een fitted correctly. Replace the cover of the measurement pick-up and
secure this with the appropriate fastening screws.
7. The installation of the data ca le [12] to the system control must e
according to good professional practice to constitute a correct completion
of the sensor technology: A protective ca le conduit must e used. (The
data ca le is not suita le for installing directly in the earth).
The end of the data ca le that is still unconnected is fitted with a plug
connector. This is to e plugged into the appropriate socket [8] of the
system control. Diagram 2 on page 3 makes clear the interrelation:
Note:
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 fl shing valve:
Before opening the eq ipment p ll the pl g o t 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 3 (Putting into op-
eration).
Before connecting the Rainwater sage system, please ens re there is no over
straining or tension on any of the connections.
The plug of the system control unit must not e connected to the socket of the
electrical supply.
Pass the end of the ca le 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
reaking 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 ca le in the proper manner. Pass the ca le 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 /
Gro nd”.
Connect the neutral wire core ( lue) to a free terminal with the designation “5”.
Connect the live electrical supply wire core ( rown or lack) to a free terminal with
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the designation “3” (power supply to the filter flushing valve). The following figure
depicts the connections descri ed a ove:
1: Pump
2: Power supply to additional pump
3: Power supply to filter flushing valve
4: Power supply to switch-over valve
5: Neutral conductor
P: 230V AC
PE / Ground : Earth
Figure 4: Electrical diagram for filter flushing valve
After connecting the wires, close the lower cover [7] of the system control housing.
4.4 Electrical connection of the additional p mp:
Connection of the additional pump is optional. If running the system without the
additional pump please read from point 3 (putting into operation).
Before opening the eq ipment p ll the pl g o t from the mains socket!
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The plug of the system control unit must not e connected to the socket of the
electrical supply. An earth ca le is a solutely necessary for connection of the
additional pump. We advise that this ca le should e protected y a pipe running
from the holding tank to the rainwater usage system. Pass the end of the ca le
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 lind screw and replace this with the supplied threaded
grommet holder. Isolate the wire cores of the ca le in the proper manner. Pass the
ca le 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 / Gro nd”. Connect the neutral wire core ( lue) on a free
terminal with the designation “5”.
Connect the live electrical supply wire core ( rown or lack) on a free terminal
with the designation “2” (power supply to the additional pump). The following
figure depicts the connections descri ed a ove:
1: Pump
2: Power supply to additional pump
3: Power supply to filter flushing valve
4: Power supply to switch-over valve
5: Neutral conductor
P: 230V AC
PE / Ground : Earth
Figure 5: Connection diagram for additional pump
After connecting the wires, close the lower cover [7] of the system control housing.
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5. P tting into operation:
Before putting into operation, please e a solutely 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.
Figure 6: Display for the duration of the systems check
In the first line the system type will e shown and in the second line the software
position will e shown. After the correct initialisation of the system installation has
een acknowledged the LCD display will show the fill level as a percent (%).
The first r nning of the nit will show the fill level reference point that
is according to the standard factory setting tank height Standard
factory setting val es:
- 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 : English
Figure 7 shows the LCD display in operation mode. Except for the fill level and the
switch positions “FV” and “P” the display should correspond with the intended
default.
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29: Status of valve for rain water filter FV+ : Filter valve open
30: Status of house water system (Pump) FV- : Filter valve closed
31: Visual representation of fill level P+ : House water pump
running
32: Fill level % P- : No water eing
with drawn
Figure 7: Display in operation
6. Set p of the system control:
After putting into operation, the system control must e adjusted and programmed
according to the conditions and requirements of the individual users system. The
required settings are easily programmed. There are four uttons for this purpose.
All necessary programming data entries follow a menu displayed y the LCD. For
the set up follow all the points listed in ta le 1 in the sequence as shown. Should
any error in the sequence occur then it is necessary to egin the set up again from
the eginning starting with the tank height. Begin the programming of the settings
y pressing the utton marked “MENU”.
With the uttons “+” or “-” the menu may e scrolled ackwards and forwards.
With the respective menu point shown the values may e altered. For this the
utton “ENTER” must e used. The “?” displayed in the LCD will now change to a
“>”graphic character. With the “+” or “-” the desired value may now e entered
according to individual requirements. When the desired value has een entered this
must e confirmed y pressing the “ENTER” utton. The value is only then taken
over and stored in the programming of the unit.
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Through pressing the “MENU” utton again the display changes ack to the
operation mode.
It is possi le to reset the unit to the factory setting standard values at any time.
The resetting can only e carried out in the operation mode (Display see Figure 6):
To do this press the “ENTER” utton and hold it pressed. Now simultaneously in
addition press the “MENU” utton. After a short wait the following display will e
shown:
Figure 8: Message reset to standard factory settings
As soon as this message is displayed the uttons may e released
The menu structure integrated in the system control is introduced to familiarise the
user in diagram 9. To ring up the menu, press and hold the „MENU“ utton for
longer than 5 seconds. All outlets are inactive when the menu level has een activ-
ated. The operation of the device is suspended. The system control switches auto-
matically ack to the operating mode when no entries have een received for ap-
proximately 30 seconds.
key „MENU“ (>5s)
+/- +/-
Depiction 9: Main menu level
Press the “ENTER” utton to arrive at each of the listed su -menu functions.
Through pressing the “MENU” utton again the display changes ack to the opera-
tion mode.
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DEFAULT VALUES
23%
SWITCHING POINTS
DEVICE
ADJUSTMENT
MANUAL OPERATION
TANK: FV- P+
23%

Depiction 10: Sub-menu “Switching points”
Page 17
SWITCHING POINTS
key „ENTER“
VALVE ON
0-100% 10%
VALVE OFF
0-100% 12% Supply with mains drinking water – OFF
+ / -
Supply with mains drinking water – ON (The
numerical value is always smaller than with valve
OFF)
DW INTERVAL
0-14 DAYS 14
Flush the drinking water supply piping every 14
days. The value „0“ switches the flushing off.
+ / -
+ / -
Flushing the drinking water supply pipes for 30
seconds.
+ / -
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 y 2% after rainfall. If the fill level
continues to increase, the rinsing will e repeated
every 3 hours. The value 0 switches the cleaning
process off.
+ / -
+ / -
Main menu level
CLEANER RINSE
WITH DW NO Permit the cleaning of the rainwater filter with
mains drinking water (standard: “NO”)
+ / -

Press the „ENTER“ utton to alter the respective switching points The value to e
altered will egin to link. The value may then e adjusted y using the „+“ and the
„-“ uttons. Press the “ENTER” utton again when the displayed value should e
accepted.
Note:
In the depiction 10 the standard factory settings have been displayed.
The following is an introduction to the general device settings:
Depiction 11: Sub-menu “General device description”
The last part of the operation level covers the manual functions:
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DEVICE
ADJUSTMENT
LANGUAGE
ENGLISH
key „ENTER“
+ / -
[20] in Figure 2
(A 6m Sensor may e ordered.)
MEASURING LENGHT
30-600cm 200
+ / -
MANUAL OPERATION
LAST FLUSH
DW 0
key „ENTER“
+ / -
HAND FLUSH
DW NO
Time scale in days; the time elapsed since the
last flush using mains drinking water
Activation of the flushing process for the mains
drinking water inlet pipe. The switch-over valve
remains permanently switched on. The yellow LED
links. The system is using mains drinking water !
Main menu level
Main menu level

Depiction 12: Sub-menu “Manual functions”
7. Error messages and fa lt correction:
The operation of the system control is to be checked at reg lar intervals
(at the latest every 4 weeks).
The read out reports always represent only pro a ilities; e.g. no clear localization
y the device is possi le 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 y the sensors the system control cannot continue to work
independently.
The particular faults are shown on the plain text in the display:
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LAST RINSE
CLEANER 1
+ / -
HAND RINSE
CLEANER NO
Time scale in days; the time elapsed since the
last filter rinse
+ / -
+ / -
Activation of the filter rinse

Depiction 13: Error messages
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ERROR
SENSOR
The reason for this error is that the white
sensor ca le has een damaged.
ERROR
DL SHORT CIRCUIT
Error possi ilities:
The data ca le of the measurement pick-up
is not connected to the data ca le terminal
[14] ut has een connected to the sensor
terminal [15/16] -
- Cinch plug or the cinch connector has a short
circuit
- Wires of the data ca le have een damaged
ERROR
SENSOR CONTROL
The measurement sensor delivers no signal
and must e 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.
ERROR
NO SIGNAL
The communication etween the system
control to the measurement pick-up is
interrupted.
ERROR
MEMORY
First try re-setting the system control to the
factory default settings . If the error message
continues to e displayed then it is necessary
to contact your service partner.
Note: After re-setting to the factory
default settings all the newly
programmed setting values will
have been overwritten and must be
re-programmed!