INSTALLATION
Troubleshooting
www.stiebel-eltron.com WPM | 21
ENGLISH
8. Troubleshooting
WARNING Electrocution
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 correctly.
Isolate the system from
the power supply. Con-
nect the sensor. Recon-
nect the system to the
mains voltage.
9. Specification
9.1 Dimensions and connections
310
400
100
b01
D0000070274
WPM
b01 Entry electrical cables
9.2 Details on energy consumption
The product data complies with EU regulations relating to the
Directive on the ecodesign of energy related products (ErP).
WPM
234727
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 heat-
ing energy efficiency (in inverter heat pump)
% 4
Contribution of temperature controller to seasonal space heat-
ing energy efficiency (in ON/OFF heat pump)
% 3.5
9.3 Data table
WPM
234727
Electrical data
Power consumption VA 8
Relay breaking capacity A 2
Sensor resistance Ω 1000
Max. relay output breaking capacity A 2 (2)
Design peak voltage V 4000
Max. total breaking capacity of all relay outputs A 10 (10)
Power supply 1/N/PE ~ 230V 50 Hz
Versions
IP rating IP21
Communication system CAN
Number of automatic cycles 100000
Level of contamination 2
Function 1.B
Suitable for Wall mounting
Dimensions
Height mm 400
Width mm 310
Depth mm 100
Weights
Weight kg 2.9
Values
Ambient temperature °C 0...55
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