6. Initial operation
1 . Make sure that the power supply to the instantaneous water heater is
switched on (fuse) and that the display (if available) of the instantane-
ous water heater shows the latest set value .
EN
2 . After inserting the batteries into the radio remote control (fig . A2), the
language selection appears . Select your preferred operating language
and confirm with "OK" .
3 . The PIN entry appears (fig . A10) .
4 . DEX/DSX/ISX: Enter the first four digits of the Bluetooth PIN and con-
firm with "OK" . The PIN can be found on or at the type plate of your
instantaneous water heater .
MCX/CFX/CEX: Enter the last 4 digits of the serial number . The serial
number can be found on the type plate of the instantaneous water
heater and on the warranty booklet .
5 . The remote control is now connected to the instantaneous water
heater and starts data synchronisation (fig . A11) . This may take a few
seconds . The remote control then switches to the Main control .
6 . Test the function by changing the setpoint via the remote control and
checking the water temperature .
If the login was not successful, a message appears . Select "OK" to start
a new login attempt .
If your device is not found even after several attempts, check the plug-in
position of the radio adapter .
Notes:
• With no remote control registered or without working radio connec-
tion, the instantaneous water heater heats to the prior selected set
temperature .
• After replacing the batteries, a new registration is not required .
• Only register again after performed factory reset or when the remote
control display continually indicates "No device connected" .
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