WPE
| 19
ENGL
IS
H
INsTALLATIoN | GUARANTEE | ENVIRoNMENT AND RECYCLING
Troubleshooting
Commissioning must be carried out in accordance with these
installation instructions and the commissioning instructions of
the WPM heat pump manager. our customer support can assist
with commissioning, which is a chargeable service.
A heat pump system can comprise many different compo-
nents. A sound knowledge of the system function is therefore
essential.
Bus initialisation
Connecting the bus cable not only establishes the electrical
connection for system communication. As part of commis-
sioning, connecting the bus cable will also assign the appli-
ance-specific address required for switching the heat pump.
Note
All necessary sensors must be connected before the
voltage is connected to the WPE. Any sensors connect-
ed subsequently will not be recognised by the WPE.
Example: No parameters, programs or temperatures
are displayed for a heating circuit if the relevant heat-
ing circuit sensor was not connected during commis-
sioning. No values can therefore be programmed for
these parameters.
For the bus connection it is essential that you carry out the
steps below in the order described:
f
f
Connect the mains voltage to the WPM and the WPE.
f
f
Connect the heat pump to the mains voltage.
The DIAGNosIs / sYsTEM menu under BUs sUBsCRIBER dis-
plays all connected bus subscribers and their respective soft-
ware versions.
After completing initialisation, use the DIAGNosIs / sYsTEM
menu under HEAT PUMP TYPEs to check if all connected heat
pumps are being displayed.
System configuration via the parameter settings
The list in chapter "settings / Parameter overview" of the com-
missioning instructions for the heat pump manager contains
all the settings for the function of the WPE.
f
f
If the system is operating incorrectly, first check the pa-
rameter settings.
8. Troubleshooting
WARNING Electrocution
f
f
Isolate the heat pump from the power supply
when carrying out any work.
Problem
Cause
Remedy
An info value is not dis-
played.
The sensor has not
been connected cor-
rectly.
Isolate the system from
the power supply. Con-
nect the sensor. Recon-
nect the mains voltage
to the system.
9. Specification
9.1 Details on energy consumption
The product data complies with EU regulations relating to the
Ecodesign of Energy Related Products Directive (ErP).
234725
Manufacturer
sTIEBEL
ELTRoN
Temperature controller class (in inverter heat pump)
VI
Temperature controller class (in oN/oFF heat pump)
VII
Contribution of temperature controller to seasonal space
heating energy efficiency (in inverter heat pump)
%
4
Contribution of temperature controller to seasonal space
heating energy efficiency (in oN/oFF heat pump)
%
3.5
9.2 Data table
WPE
234725
IP rating
IP21
Ambient temperature
°C
0...55
sensor resistance
Ω
1000
Communication system
CAN bus interface
Max. relay output breaking capacity
A
2 (2)
Design peak voltage
V
4000
Max. total breaking capacity of all relay out-
puts
A
6 (6)
Number of automatic cycles
100000
Level of contamination
2
Function type
1.B
suitable for
Wall mounting
Height
mm
400
Width
mm
310
Depth
mm
100
Power supply
1/N/PE ~ 230 V 50 Hz
Guarantee
The guarantee conditions of our German companies do not
apply to appliances acquired outside of Germany. In countries
where our subsidiaries sell our products a guarantee can only
be issued by those subsidiaries. Such guarantee is only grant-
ed if the subsidiary has issued its own terms of guarantee. No
other guarantee will be granted.
We shall not provide any guarantee for appliances acquired in
countries where we have no subsidiary to sell our products.
This will not affect warranties issued by any importers.
Environment and recycling
We would ask you to help protect the environment. After use,
dispose of the various materials in accordance with national
regulations.
GUARANTEE
ENVIRoNMENT AND RECYCLING
