Operation; Replacing Batteries - HomeMatic HmIP-eTRV-B-2 Installation And Operating Manual

Operation

7 Operation
After teaching-in and mounting have been performed, simple operations
are available directly on the device.
• Temperature: Press the left (E) or right (F) push-button to
manually change the temperature of the radiator. In automatic
mode, the manually set temperature will remain the same until the
next point at which the profile changes. Afterwards, the defined
heating profile will be activated again. During manual operation,
the temperature remains activated until the next manual change.
• Boost function: Press the boost button (G) briefly to activate the
boost function for heating up the radiator quickly and briefly by
opening the valve. There will be a pleasant room temperature
right away because of the radiated heat.
8

Replacing batteries

If the symbol for empty batteries ( ) appears in the display or in the app,
please replace the used batteries by two new LR6/mignon/AA batteries.
You must observe the correct battery polarity.
To insert new batteries, please proceed as follows:
Open the battery compartment (B) by pulling the battery
•
compartment down (see figure 3).
• Remove the batteries.
• Insert two new 1.5 V LR6/mignon/AA batteries into the battery
compartment, making sure that you insert them the right way
round (see figure 12).
• Close the battery compartment.
• Please pay attention to the flashing signals of the device LED
while inserting the batteries (see see „9.4 Error codes and flashing
sequences" on page 50).
Once the batteries have been inserted, the radiator thermostat will
perform a self-test and an adaption run, if required (approx. 2 seconds).
Afterwards, initialisation is carried out. The LED test display will indicate
that initialisation is complete by lighting up orange and green.
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