STIEBEL ELTRON SOM WMZ SOL Instruction Manual


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 
285309-36390-8670_SOM-WMZ-SOL_de_en_fr_nl_sv.indb 1 08.11.2011 09:27:29

 



1. General information
The chapter Operation is intended for the user and the heating
contractor.
The chapter Installation is intended for the heating contractor.
Please read carefully.
Read these instructions carefully before using this
appliance and retain for future reference. If the
appliance is passed on to a third party please hand
these instructions to the new user.
1.1 Key
1.1.1 Symbols in these installation instructions:
In this documentation you will come across symbols and highlights
that are defined as follows:
Risk of injury!
Information regarding possible risks of injury for
installer or users and potential equipment damage.
Danger to life through electrocution!
! Risk of damage!
Information regarding potential situations that
bring a risk with them that might occur during
the appliance installation or opearation, the
consequences of which may be equipment damage,
environmental pollution or material loss.
Please read carefully.
Read this section carefully.
»Passages with this symbol "»" indicate step-by-step procedures
you must carry out.
—Passages with this symbol "–" indicate lists.
1.1.2 Symbols on the appliance
This symbol is defined as follows:
Appliance disposal
Appliances with this marking are not suitable for
general waste disposal, and should therefore be
disposed of separately.
OPERATION ____________________________________________ 16
1. General information ������������������������������������������ 16
1.1 Key ��������������������������������������������������������������������16
2. Safety ���������������������������������������������������������� 17
2.1 Correct use ���������������������������������������������������������� 17
2.2 Safety instructions ������������������������������������������������ 17
2.3 CE designation ����������������������������������������������������� 17
3. Device description �������������������������������������������� 17
3.1 Properties ____________________________________________________ 17
3.2 Functions and properties ���������������������������������������� 17
4. Operation ������������������������������������������������������ 18
4.1 Graphic display ���������������������������������������������������� 18
4.2 Control levels �������������������������������������������������������18
4.3 Operation with keys ����������������������������������������������� 18
5. Settings and prompts ��������������������������������������� 19
6. Display and adjustable parameters ������������������������ 19
6.1 Display parameters ����������������������������������������������� 19
6.2 Adjustable parameters ������������������������������������������� 19
6.3 Heat volume �������������������������������������������������������� 19
6.4 Flow and return temperatures ���������������������������������� 19
6.5 Flow rate ������������������������������������������������������������ 19
6.6 Output ��������������������������������������������������������������� 20
6.7 Frost protection ���������������������������������������������������� 20
6.8 Pulse value ����������������������������������������������������������20
6.9 Subaddress ��������������������������������������������������������� 21
6.10 BUS mode ����������������������������������������������������������� 21
6.11 BUS master ��������������������������������������������������������� 21
6.12 Sensor balancing �������������������������������������������������� 21
6.13 Reset �����������������������������������������������������������������22
6.14 Language ������������������������������������������������������������ 22
7. What to do if... ������������������������������������������������ 22
7.1 LED flashing codes at the heat meter �������������������������� 22
7.2 Fuses ����������������������������������������������������������������� 22
INSTALLATION _________________________________________ 23
8. Safety ���������������������������������������������������������� 23
8.1 Country-specific safety information ��������������������������� 23
8.2 Instructions, standards and regulations ���������������������� 23
9. Device description �������������������������������������������� 23
9.1 Properties ����������������������������������������������������������� 23
9.2 Standard delivery: ������������������������������������������������� 23
10. Installation location ������������������������������������������ 24
10.1 Assembly ������������������������������������������������������������ 24
10.2 Fixing ����������������������������������������������������������������24
10.3 Electrical connection ���������������������������������������������� 24
10.4 Hydraulic connection of the meter ����������������������������� 25
11. Operation with a controller ��������������������������������� 25
11.1 Conversion from master to slave ������������������������������� 25
11.2 PCB relacement ���������������������������������������������������� 26
12. Connection examples ���������������������������������������� 26
12.1 Standalone operation ��������������������������������������������� 26
12.2 Operation with control unit�������������������������������������� 26
12.3 Cascade without control unit ������������������������������������ 27
12.4 Cascade with control unit ���������������������������������������� 27
13. Specification ��������������������������������������������������� 27
13.1 Dimensioned drawing �������������������������������������������� 27
13.2 Specification �������������������������������������������������������� 27
CUSTOMER SERVICE AND WARRANTY _______________ 28
ENVIRONMENT AND RECYCLING ______________________ 29
285309-36390-8670_SOM-WMZ-SOL_de_en_fr_nl_sv.indb 16 08.11.2011 09:27:58

 
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
2. Safety
2.1 Correct use
The heat meter and associated volumeter are designed for
recording heat volumes in standard solar or central heating
systems, filled with water or glycol/water mixtures, in detached
houses and apartment buildings.
Any other or additional use is inappropriate, for example capturing
process heat, or usage in systems operated with alternative media.
Observation of these instructions is also part of the correct use
of this appliance. Any changes or modifications to the appliance
void any warranty.
2.2 Safety instructions
Observe the following safety information and instructions.
Only heating contractors should install and commission this
appliance.
The contractor is responsible for adherence to all currently
applicable regulations during installation and commissioning.
Operate this appliance only if it is fully installed and all safety
equipment is fitted.
Risk of injury!
Where children or persons with limited physical,
sensory or mental capabilities are to be allowed
to control this appliance, ensure that this will only
happen under supervision or after appropriate
instructions by a person responsible for their safety.
Children should be supervised to ensure that they
do not play with the appliance.
2.3 CE designation
The CE designation shows that the device meets all the essential
requirements:
—Electromagnetic Compatibility Directive (Council Directive
2004/108/EC)
—Low Voltage Directive (Council Directive 2006/95/EC)
3. Device description
3.1 Properties
The device is a universal heat meter for solar heating systems,
heat pump systems and conventional heating systems.
It is operated by three pushbuttons that navigate a menu, which let
you select different system parameters or switch between control
levels.
Furthermore, a light-emitting diode (LED) serves to display sensor
faults and incorrect sensor connections.
The heat volume calculated and the system parameters set are
saved if a power failure occurs.
3.2 Functions and properties
—Output check
—Improved efficiency
—Graphic display
—Protected if power fails
—Easy menu-guided operation
—Easy-to-assemble casing
285309-36390-8670_SOM-WMZ-SOL_de_en_fr_nl_sv.indb 17 08.11.2011 09:27:58

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4. Operation
4.1 Graphic display
The display shows the system diagram and sensors installed. The
r.h. side additionally displays values. The current flow and return
temperatures are always shown on the bottom right.
Graphic display
VL
RL
15 kWh
Heat
85,6 °C
45,7 °C
26�05�21�0026
4.2 Control levels
On the first control level, the flow and return temperatures, the
calculated heat volume, and, subject to setting, the current output
or flow rate of the system are displayed.
The second control level displays parameters and programming.
4.3 Operation with keys
The three pushbuttons below the display are used to operate the
device. The right pushbutton is used to scroll forward through the
display menu or to increase the setting values.
The left pushbutton is used to scroll back through the display menu
or to decrease the setting values.
The centre pushbutton is used to switch between display level and
settings level, and for further programming.
4.3.1 Navigating and programming
»Press the centre pushbutton to switch from the display level to
the settings level.
»Select the required parameter with the left or right
pushbutton.
»Briefly press the centre pushbutton.
»Set the required value with the left or right pushbutton.
»Briefly press the centre pushbutton.
»Respond to the subsequent confirmation prompt
"Save?" with "Yes" or "No ". The selection is made with the
left or right pushbutton, and the response with the centre
pushbutton.
To return to the display level, select "back" and briefly press the
left pushbutton.
User interface
2 3
4
26�05�21�0397
1
1 Light-emitting diode (LED)
2 "Left" or "decrease"
3 "Right" or "increase"
4 "Confirm"
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 
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5. Settings and prompts
For calculating the heat volume transferred, the heat meter takes
the dependence of the specific thermal capacity c and the density r
of the temperature and mixing ratio into account (access to saved
values). The heat meter calculates the heat volume transferred using
these parameters, the flow and return temperatures measured by
two precision temperature sensors, and the evaluation of impulses
from a volumeter.
The device can be installed in systems that use water or a water-
glycol mixtures as heat transfer medium. The proportion (in % by
vol.) in a system and the specification of the selected volumeter
(in litres per pulse) are adjusted according to the installation of
the device on site.
6. Display and adjustable parameters
6.1 Display parameters
The following parameters can be shown as standard displays:
—VL Flow temperature in °C
—RL Return temperature in °C
—Heat volume in Wh or kWh
—Flow rate in l/h
—Output in kW
6.2 Adjustable parameters
The following parameters can be freely adjusted. The parameters
marked with an asterisk must be checked during commissioning
and matched if necessary.
—Type of anti-freeze*
—Anti-freeze content (display for ethylene only)
—Pulse value
—Subaddress
—BUS mode
—BUS master (display for cascades only)
—Sensor balancing
—Sensor 1
—Sensor 2
—Reset
—Language
—Version
A confirmation prompt follows every parameter alteration. The
new value will not be accepted and saved until the confirmation
prompt has been answered.
Confirmation prompt
Safety prompt:
Save? Yes
26�05�21�0003
6.3 Heat volume
The heat volume calculated by the heat meter is shown on the top
right of the display.
If the heat volume is below 1 MWh, it is stated as Wh.
If the heat volume is above 1 MWh, it is stated as kWh.
Heat volume
VL
RL
15 kWh
Heat
85,6 °C
45,7 °C
26�05�21�0026
6.4 Flow and return temperatures
The current flow and return temperatures are shown in °C on the
bottom right of the display.
The upper value corresponds to the "VL" sensor and show the
current flow temperature (85.6 °C in the example).
The lower value corresponds to the "RL" sensor and show the
current return temperature (45.7 °C in the example).
Flow and return temperatures
VL
RL
15 kWh
Heat
85,6 °C
45,7 °C
26�05�21�0026
6.5 Flow rate
The current flow rate in l/h is shown on the top right of the
display.
Flow rate
VL
RL
200 l/h
Flow
85,6 °C
45,7 °C
26�05�21�0027
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 
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
6.6 Output
The current output in kW is shown on the top right of the
display.
The accuracy of the output data is subject to the volumeter used.
At low flow rates, deviations from the actual value are possible
for technical reasons.
Output
VL
RL
9.30 kW
Power
85,6 °C
45,7 °C
26�05�21�0028
6.7 Frost protection
Solar heating systems are generally filled with a heat transfer
medium since, on the one hand, temperatures > 100 °C can occur
in the solar circuit, and on the other hand to prevent frost damage
to the system in winter.
6.7.1 Setting
Various heat transfer media are available.
Setting options:
—Water
—Ethylene
—H-30L (factory setting)
—H-30LS
Adjust. values:
back
Antifr. type Water
Volume/Imp. 10,0 L/I
Type of frost protection
26�05�21�0006
If glycol or a water/glycol mixtures are used as heat transfer
medium, observe the following information.
6.7.2 H-30L
The anti-freeze is premixed with a mixing ratio of 45% by vol.
6.7.3 H-30LS
The antifreeze is premixed with a mixing ratio of 42% by vol.
6.7.4 Determining the water/glycol ratio
Since the thermal capacity of the heat transfer medium is subject
to the glycol content, first determine the glycol:water ratio.
The value in % by vol. can be calculated if the volumes of water
and glycol used in the system are known.
% by vol. = (VG : (VW + VG)) x 100
VG: Volume of glycol
VW: Volume of water
Example:
If there are 15 l water and 20 l glycol in the circuit, the result is:
% by vol. = (20 : (15 + 20)) x 100) = 57
6.7.5 Antifreeze content
The parameter "Antifreeze cont." is only visible if "ETHYLENE" is
selected in advance as the type of antifreeze.
Adjustment options:
Setting range 20% ... 70% by vol.
Factory setting 45%
Adjust. values:
back
Antifr. type Ethylene
Antifreeze 45 %
Antifreeze content
C26�05�21�0030
6.8 Pulse value
This adjustable parameter is subject to the volumeter connected.
Note the unit "l/imp" next to the arrow on the volumeter.
If the volumeter V40 provided is used, the pulse value must be set
to 10.0 litres/impulse.
Setting range 0.1 ... 99.9 l/imp
Adjust. values
back
Antifr. type Water
Volume/Imp. 10,0 L/I
Pulse quality rating
26�05�21�0009
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 

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6.9 Subaddress
To operate several heat meters in one system, every individual
heat meter must be assigned its own subaddress.
The subaddress is set with this parameter. An individual module
address can be set for a single heat meter.
If several heat meters are connected to one PC or datalogger
(max. 16), the heat meters must be numbered in sequence from
zero. Any order at the VBUS® connection is possible.
Setting range 0 ... 15
Adjust. values
Antifr. type Water
Volume/Imp. 10,0 L/I
Subaddress 0
Subaddress
26�05�21�0010
6.10 BUS mode
The BUS mode is set with this parameter.
Adjustment options
—Enabled
—Disabled
—Cascading
6.10.1 Disabled
Never change the factory settings if the SOM WMZ SOL is connected
to a controller with VBUS® output (corresponds to "disabled" BUS
mode).
6.10.2 Enabled
If the SOM WMZ SOL is not connected to a controller and the data
are recorded on a PC or datalogger.
6.10.3 Cascading
If several SOM WMZ SOL are connected to a PC or datalogger. The
SOM WMZ SOL modules are numbered sequentially, beginning
with 0.
Adjust. values
Volume/Imp. 10,0 L/I
Subaddress 0
Bus mode Cascaded
BUS mode
26�05�21�0011
6.11 BUS master
The BUS master only appears at subaddress 0 and in "cascading"
BUS mode.
Adjustment options:
—No
—Yes
Set BUS master "No" if several SOM WMZ SOL are to be used
cascading with one controller.
Set BUS master "Yes" if several SOM WMZ SOL are to be used
cascading without controller.
Adjust. values
Subaddress 0
Bus mode Cascaded
Bus master Yes
BUS master
C26�05�21�0012
6.12 Sensor balancing
To match the sensors to each other, every sensor can be provided
with an individual adjustment.
Adjustment options:
—-5 K ... +5 K, in steps of 0.1 K
Adjust. values
Reset
Sensor 1 0,0 K
Sensor 2 0,0 K
Sensor balancing
C26�05�21�0013
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 
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
6.13 Reset
Activating this function resets the captured heat volume to zero.
Adjust. values
Subaddress 0
Bus mode Cascaded
Reset
Reset
26�05�21�0014
6.14 Language
This parameter enables a change of the language of the plain
text display.
Adjustment options:
—German
—English
—French
Adjust. values
Sensor 1 0,0 K
Sensor 2 0,0 K
Language English
Language
26�05�21�0015
7. What to do if...
If the heat meter does not function correctly, check the following
points.
7.1 LED flashing codes at the heat meter
—Continuous green: Everything OK
—Red flashing: At least one sensor is faulty
7.2 Fuses
»Check the device power supply.
»Check the fuse on the device PCB.
Fuse
1 2 3 4 5 6
LN
2019
T0,8A
S1 S2
141312
Netz / Mains
220 ... 240 V~
50-60 Hz
VBus
9 10
V40
IP 20
D-37603 Holzminden
SOM WMZ SOL 227729
C26�05�21�0016
1
1 Fuse 0.8A (slow)
   
-10 961 55 1213
-5 980 60 1232
0 1000 65 1252
5 1019 70 1271
10 1039 75 1290
15 1058 80 1309
20 1078 85 1328
25 1097 90 1347
30 1117 95 1366
35 1136 100 1385
40 1155 105 1404
45 1175 110 1423
50 1194 115 1442
LED is permanently off.
When the LED is extinguished, check the
controller power supply.
OKno
The controller fuse has blown. This is
accessible once the cover is removed and
can then be replaced (a spare fuse can be
found in the accessories bag).
LED flashes red.
Sensor faulty. An error code is displayed
in the appropriate sensor display channel
instead of a temperature.
- 88.8888.8
Lead broken.
Check lead.
Short circuit.
Check lead.
Disconnected PT1000 temperature sensors
can be checked using a resistance meter,
and the resistance readings are as below
for the corresponding temperatures.
Resistance values of
PT1000 sensors
285309-36390-8670_SOM-WMZ-SOL_de_en_fr_nl_sv.indb 22 08.11.2011 09:28:07




 

8. Safety
8.1 Country-specific safety information
All required steps to complete commissioning must be carried
out by a heating contractor. During this process, these installation
instructions must be observed.
We guarantee trouble-free function and operational reliability
only if the original accessories and spare parts intended for the
device are used.
8.2 Instructions, standards and regulations
! Risk of damage!
Observe the type plate. The stated voltage must
match the mains voltage.
Danger to life through electrocution!
All electrical connection and installation work must
be carried out in accordance with VDE regulations
(DIN VDE 0100) [or local regulations], the rules
of your local power supply utility, and relevant
national and local regulations.
Danger to life through electrocution!
Connection to the power supply is only possible as a
permanent connection.
The device must be able to be separated from the
mains power supply by an isolator that disconnects
all poles with at least 3 mm contact separation.
9. Device description
9.1 Properties
The device is a universal heat meter for solar and conventional
heating systems.
The device particularly allows for the fact that the density and
specific thermal capacity of the heat transfer medium are subject
to the temperature and the water:glycol ratio. The device calculates
the heat volume using these parameters, the flow and return
temperatures measured by two precision temperature sensors,
and the evaluation of pulses from a volumeter.
The heat volume captured and the system parameters set are
saved if a power failure occurs. It is operated by pushbuttons that
navigate a menu, which let you select different display points or
switch control levels.
The graphic display on the first level shows the temperature at
specific test points, the volume of heat absorbed, the current
output and the system flow rate. Furthermore, a control LED serves
to display sensor faults and incorrect sensor connections.
The second level serves to display system settings and control
values that can be adjusted accordingly if the system characteristics
change.
The device has its own power supply. Further modules can be
connected via a BUS connection. The VBUS® connection enables
all display values to be transferred to a corresponding controller,
PC or datalogger, for further processing or evaluation.
9.2 Standard delivery:
1 x SOM WMZ SOL
1 x spare fuse 0.8A (slow)
2 x screws and rawl plugs
4 x strain relief and screws
2 x PT1000 sensors
2 x sensor wells
1 x volumeter V40
285309-36390-8670_SOM-WMZ-SOL_de_en_fr_nl_sv.indb 23 08.11.2011 09:28:07



 
10. Installation location
Install this device in a dry indoor location.
To function correctly, please note that the device must not be
exposed to strong electromagnetic fields.
Ensure that the heat meter can be isolated from the power supply
by an additional isolator that can separate all poles with at least
3 mm contact separation, or with an isolating facility (fuse) in
accordance with current regulations.
When installing the power cable and the sensor leads, ensure that
they are routed separately.
10.1 Assembly
The device is designed for installation on finished even and vertical
walls with power connection from below.
»Undo the centre screw and remove the panel.
2
3
4
5
1
Device layout
C26�05�21�0020
1 Fascia
2 Display
3 Key
4 Fuse
5 Cable entries with strain relief
10.2 Fixing
»Transfer the two fixing holes onto the wall.
»Drill the holes and insert rawl plugs.
»Insert a screw into the upper hole and turn in until approx. 5 mm
of the screw head protrudes from the wall.
»Hook the device into the gap between the screw head and the
wall, and then fully tighten the screw.
»Position the lower screw and turn in. Ensure that the casing is
not subject to any mechanical stress.
66
49 110
173
104
28
155
1
2
Fixing points
26�05�01�0147
1 Hook-in aperture
2 Fixing hole
10.3 Electrical connection
The electrical connection is made according to the following wiring
diagram.
1 2 3 4 5 6
LN
2019
T0,8A
S1 S2
141312
Netz / Mains
220 ... 240 V~
50-60 Hz
VBus
9 10
V40
IP 20
D-37603 Holzminden
SOM WMZ SOL 227729
4
23
1
5
Fixing points
C26�05�21�0016
1 Fuse
2 Sensor terminals
3 VBUS connection
4 Mains power
5 Earth terminals
Provide the heat meter with power via an external main isolator.
Secure the flexible cables/leads to the casing using the strain relief
provided and the appropriate screws.
The following connection allocation applies to a heat meter used
in conjunction with a volumeter (any polarity of the individual
terminals):
—1 / 2 = Sensor flow temperature
—3 / 4 = Sensor return temperature
—5 / 6 = Flow meter
—9 / 10 = VBUS®
—19 = N - neutral conductor
—20 = L - phase
—12...14 = PE, earth terminals
285309-36390-8670_SOM-WMZ-SOL_de_en_fr_nl_sv.indb 24 08.11.2011 09:28:08




 
10.4 Hydraulic connection of the meter
Volumeter V40
CE-170497-0016
Volumeter V40 can be used to capture the flow rate in the
solar circuit.
The volumeter must be hydraulically connected in the solar or
heating return.
Take the flow direction into account when installing. Observe the
direction information on the volumeter.
To calm the air flow, leave at least 30 cm inlet/outlet path upstream
and downstream of the volumeter.
To avoid water hammer through cavitation in hydraulic systems,
we recommend filling the system with cold water and using air
separators. Water hammer and turbulent flow characteristics lead
to the destruction of the meter.
11. Operation with a controller
If the heat meter is connected together with a controller, the VBUS
master PCB must be replaced with the VBUS slave PCB. The VBUS
slave PCB is not part of the standard delivery.
11.1 Conversion from master to slave
If several heat meters as cascade are connected to a datalogger
or PC, only replace the VBUS master PCBs of the heat meters with
subaddress 1 or higher for VBUS slave PCBs.
! Risk of damage!
Electrostatic discharge may damage electronic
components.
»Prior to contact with electronic components, ensure your body
is discharged, e.g. by using an earthed wristband.
VBUS PCB
1
2
C26�05�21�0017
1 Main PCB
2 VBUS PCB
285309-36390-8670_SOM-WMZ-SOL_de_en_fr_nl_sv.indb 25 08.11.2011 09:28:11



 
11.2 PCB relacement
Danger to life through electrocution!
»Interrupt the power supply.
»Undo the Phillips screw from the facing panel and pull the panel
downwards off the casing.
C26�05�21�0018
Opening the casing
»Remove the two side screws from the transparent upper part of
the casing and remove this upper part.
C26�05�21�0019
Releasing the PCB
»Remove the VBUS master PCB fitted at the factory towards the
top, and fit the VBUS slave PCB accordingly.
Changing the PCB
C26�05�21�0021
Assemble the device in reverse order.
12. Connection examples
The following connection examples show the VBUS connections
between heat meter, control unit and PC.
12.1 Standalone operation
The heat meter is operated independently of other control and
test components.
Configuration / setting:
—Master PCB installed in the SOM WMZ SOL
—Subaddress = "0"
—BUS mode = "enabled"
Operation with PC
26�05�21�0022
12.2 Operation with control unit
The heat meter is operated together with a control unit.
12.2.1 Configuration / setting:
Control unit:
—The SOM WMZ SOL must be logged on as a module at the
control unit.
SOM WMZ SOL:
—Slave PCB installed
—Subaddress = "0"
—BUS mode = "disabled"
Operation with SOM 8 electronic comfort
26�05�21�0023
285309-36390-8670_SOM-WMZ-SOL_de_en_fr_nl_sv.indb 26 08.11.2011 09:28:17




 
12.3 Cascade without control unit
In cascade mode, every heating circuit must have a volumeter
installed. The data calculated can be read centrally via a
datalogger or PC.
Configuration / setting:
SOM WMZ SOL "0"
—Master PCB installed in the first SOM WMZ SOL
—Subaddress = "0"
—BUS mode = "cascading"
—BUS master = "Yes"
SOM WMZ SOL "1" to "15"
—Slave PCB installed in the following SOM WMZ SOL
—Subaddress = "1" to "15"
—BUS mode = "cascading"
Any order at the VBUS® connection is possible.
Cascade operation without a controller, with PC
C26�05�21�0024
12.4 Cascade with control unit
A heat meter cascade can be connected directly to a control unit.
The data calculated can be scanned at every heat meter or centrally
via the control unit. An additional PC can be connected.
Configuration / setting:
Control unit
—Do not make any adjustments at the control unit. The heat meter
must not be logged on at the control unit.
SOM WMZ SOL "0"
—Slave PCB installed
—Subaddress = "0"
—BUS mode = "cascading"
—BUS master = "No"
SOM WMZ SOL "1" to "15"
—Slave PCB installed
—Subaddress = "1" to "15"
—BUS mode = "cascading"
Any order at the VBUS® connection is possible.
Cascade operation with a control unit, and PC
C26�05�21�0025
13. Specification
13.1 Dimensioned drawing
66
49 110
173
104
28
155
Dimensions
26�05�01�0147
13.2 Specification
 
Type SOM WMZ SOL
Part number 227729

Casing PC-ABS and PMMA
Protection rating IP 20 / DIN 40050
Ambient temperature range °C 0 ... 40
Installation Wall mounting,
optional control panel installation
Displays Graphic LCD,
two-coloured control LED
Supply V 220 ... 240, 50-60 Hz
Power consumption approx. VA 2

Volume ratio, glycol % 20 ... 70, in steps of 1%
Pulse rate V 40 l/Imp 0.1 - 99.9 in steps of 0.1 l/imp
Max. flow rate VM 40 m3/h 1.5
Temperature capture type PT1000 sensor
Accuracy ± K 0.3
Measuring range °C -30 ... + 150
Data BUS system VBUS®

Dimensions H x W x D mm 173 x 110 x 46
Weight approx. kg 0.4
VBUS® is a registered trademark of Siemens AG.
285309-36390-8670_SOM-WMZ-SOL_de_en_fr_nl_sv.indb 27 08.11.2011 09:28:21


 


Guarantee
For guarantees please refer to the respective terms and conditions
of supply for your country.
!Theinstallation,electricalconnectionandrstoperati-
onofthisapplianceshouldbecarriedoutbyaqualied
installer.
!Thecompanydoesnotacceptliabilityforfailureofany
goodssuppliedwhichhavenotbeeninstalledandope-
ratedinaccordancewiththemanufacturer‘sinstructions.
Environment and recycling
Please help us to protect the environment by disposing of the
packaging in accordance with the national regulations for waste
processing.
285309-36390-8670_SOM-WMZ-SOL_de_en_fr_nl_sv.indb 28 08.11.2011 09:28:21



 


Guarantee
For guarantees please refer to the respective terms and conditions
of supply for your country.
!
Theinstallation,electricalconnectionandrstoperati-
onofthisapplianceshouldbecarriedoutbyaqualied
installer.
!
Thecompanydoesnotacceptliabilityforfailureofany
goodssuppliedwhichhavenotbeeninstalledandope-
ratedinaccordancewiththemanufacturer‘sinstructions.
Environment and recycling
Please help us to protect the environment by disposing of the
packaging in accordance with the national regulations for waste
processing.
285309-36390-8670_SOM-WMZ-SOL_de_en_fr_nl_sv.indb 29 08.11.2011 09:28:21



Deutschland
STIEBEL ELTRON GmbH & Co. KG
Dr.-Stiebel-Straße | 37603 Holzminden
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron.de
Verkauf Tel. [phone]* | Fax [phone]* | info-c[email protected]
Kundendienst Tel. [phone]* | Fax [phone]* | ku[email protected]
Tel. [phone]
Ersatzteilverkauf Tel. [phone]* | Fax [phone]* | [e-mail]
Tel. [phone]
Vertriebszentren Tel. [phone]* | Fax [phone]*
* 0,09 €/min bei Anrufen aus dem deutschen Festnetz. Maximal 0,42 €/min bei Anrufen aus Mobilfunknetzen.
Irrtum und technische Änderungen vorbehalten! | Subject to errors and technical changes! | Sous réserve
d‘erreurs et de modifications techniques! | Onder voorbehoud van vergissingen en technische wijzigingen! |
Salvo error o modificación técnica! | Rätt till misstag och tekniska ändringar förbehålls! | Excepto erro ou
alteração técnica | Zastrzeżone zmiany techniczne i ewentualne błędy | Omyly a technické změny jsou
vyhrazeny! | A muszaki változtatások és tévedések jogát fenntartjuk! | Отсутствие ошибок не
гарантируется. Возможны технические изменения. | Chyby a technické zmeny sú vyhradené! Stand 8643
Austria
STIEBEL ELTRON Ges.m.b.H.
Eferdinger Str. 73 | 4600 Wels
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron.at
Belgium
STIEBEL ELTRON bvba/sprl
't Hofveld 6 - D1 | 1702 Groot-Bijgaarden
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron.be
Czech Republic
STIEBEL ELTRON spol. s r.o.
K Hájům 946 | 155 00 Praha 5 - Stodůlky
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron.cz
Denmark
Pettinaroli A/S
Mandal Allé 21 | 5500 Middelfart
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron.dk
Finland
Insinööritoimisto Olli Andersson Oy
Kapinakuja 1 | 04600 Mäntsälä
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron.fi
France
STIEBEL ELTRON SAS
7-9, rue des Selliers
B.P 85107 | 57073 Metz-Cédex 3
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron.fr
Hungary
STIEBEL ELTRON Kft.
Pacsirtamező u. 41 | 1036 Budapest
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron.hu
Japan
NIHON STIEBEL Co. Ltd.
Ebara building 3F
2-9-3 Hamamatsu-cho
Minato-Ku | 105-0013 Tokyo
Tel. [phone] | Fax [phone]
[email protected]
www.nihonstiebel.co.jp
Netherlands
STIEBEL ELTRON Nederland B.V.
Daviottenweg 36
5222 BH 's-Hertogenbosch
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron.nl
Poland
STIEBEL ELTRON Polska Sp. z o.o.
ul. Instalatorów 9 | 02-237 Warszawa
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron.com.pl
Russia
STIEBEL ELTRON LLC RUSSIA
Urzhumskaya street 4,
building 2 | 129343 Moscow
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron.ru
Slovakia
TATRAMAT - ohrievače vody, s.r.o.
Hlavná 1 | 058 01 Poprad
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron.sk
Sweden
STENERGY
Vasagatan 14 | 545 30 Töreboda
Sales:
Tel. [phone] | [e-mail]
Technique & Service:
Tel. [phone] | [e-mail]
www.stiebel-eltron.se
Switzerland
STIEBEL ELTRON AG
Netzibodenstr. 23 c | 4133 Pratteln
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron.ch
Thailand
STIEBEL ELTRON Asia Ltd.
469 Moo 2 Tambol Klong-Jik
Amphur Bangpa-In | 13160 Ayutthaya
Tel. [phone] | Fax [phone]
[email protected]
www.stiebeleltronasia.com
United Kingdom and Ireland
STIEBEL ELTRON UK Ltd.
Unit 12 Stadium Court
Stadium Road | CH62 3RP Bromborough
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron.co.uk
United States of America
STIEBEL ELTRON, Inc.
17 West Street | 01088 West Hatfield MA
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron-usa.com
A 285309-36390-8670
4<AMHCMN=ifdajc>
285309-36390-8670_SOM-WMZ-SOL_de_en_fr_nl_sv.indb 20 08.11.2011 09:29:13