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installation
specification
www.stiebel-eltron.com
som Wmz sol |
27
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
C2
6�
05
�2
1�
00
24
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
C2
6�
05
�2
1�
00
25
13. Specification
13.1 Dimensioned drawing
66
49
110
173
104
28
155
Dimensions
26
�0
5�
01
�0
14
7
13.2 Specification
model
Heat meter
Type
SOM WMZ SOL
Part number
227729
specification
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
setting ranges
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
m
3
/h
1.5
Temperature capture
type
PT1000 sensor
Accuracy
± K
0.3
Measuring range
°C
-30 ... + 150
Data BUS system
VBUS
®
dimensions and weights
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