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4. Safety instructions
The product’s guarantee becomes invalid, if the product is damaged as
a result of the failure to observe these operating instructions! We do not
assume any liability for any resulting damages!
Nor do we assume liability for damage to property or personal injury
caused by improper use or failure to observe the safety instructions. In
such cases the product’s guarantee becomes invalid.
Dear customer, the following safety instructions are intended to protect you as well as
the device. Please take time to read through the following points:
a) General information
• Consult a skilled technician if you have doubts about the mode of operation,
safety or connection of the product. Do not mount, connect or install the
device yourself!
• The safety functions (temperature limits, for example) of devices controlled
by the ‘FS20 ST-2’ wireless switch socket (or other FS20 switching units)
may not be deactivated or defective. Please observe the operating instruc-
tions of the connected heating, cooling or ventilating appliance.
• Do not use this product in hospitals or medical institutions. Although the
components of the FS20 wireless control system (which includes the ‘FS20
STR’ wireless thermostat and the ‘FS20 ST-2’ wireless switch socket) only
emit relatively weak radio signals, these may cause life-support systems to
malfunction.
This may also be the case in other areas.
• For safety and licensing (CE) reasons any unauthorised alterations to and/
or modification of the product are not permitted.
• The product is approved for operation in dry, closed rooms only. Make sure
the product does not become damp or wet; it is not suitable for use in
bathrooms. There is danger of a fatal electric shock!
• The ‘FS20 ST-2’ wireless switch socket construction complies with protec-
tion class I. Only a proper socket with a protective earth conductor (230V~/
50Hz) from the public power supply system may be used as a voltage
source for the ‘FS20 ST-2’.