HERZ ETKF+
Page 3
thermostatic inserts with a M28 x 1,5 connection.
After inserting batteries, the ETKF+ has to be mounted on the radiator. The ETKF+ starts an
adaptating run afterwards, during the adapting it would be show “Ins” and symbol (
) on the
display. After the symbol is shine on the display the ETKF+ can be mounted on the radiator.
After an adjustment run ( "AdA") is carried out to adapt to the valve.
• Set the ETKF+ on the valve
• Tighten nut tight firmly.
• Press the Boost button when the display reads "InS".
The ETKF+ performs adjustment run. Here "AdA" and the type icon (
) appear on the display, at
this time no operation is possible. If the adjustment run initiated before mounting or an error
message (F1, F2, F3), press the Boost button and the motor back to the position "InS".
The “Teaching-In” can also aktivate during the “InS” on the display
Step 4: Configuration
The settings of the energy saving thermostatic head ETKF+ can be changed individually via the
configuration menu. Further information about changing the settings of the ETKF+ can be found in
the detailed operating manual available online for download on the HERZ Homepage.
Teaching-In
In order to be able to use the energy saving thermostatic head ETKF+ in your installation, you must
teach it in to the other devices first. Further information about “Teaching-In” the ETKF+ can be
found in the detailed operating manual available online for download on the HERZ homepage.
Restore factory settings
The factory settings of the energy saving thermostatic head ETKF+ can be restored manually.
Restoring the factory settings deletes all settings and information about taught-in devices.
• First remove the batteries from the battery compartment of the ETKF+
• Wait 60 seconds
• Press and hold down the three buttons (Auto/ Manu, Boost, (
)) while inserting the batteries
• Once the factory settings have been restored successfully, "rES" is displayed
Flashing Sequences
Error code on
the display
Problem
Solution
Empty battery
symbol (
)
Battery voltage too low
Replace batteries
F1
Valve drive sluggish
Check the installation; check
whether the pin on the heating
valve is stuck
F2
Actuating range too wide
Check the fastening of the
radiator thermostat
F3
Adjustment range too small
Check the heating valve;
check whether the valve pin is
jammed
F4
Device already taught-in to a
wall the
Make sure the device is no
longer taught-in to a wall
the and restore the
factory settings Then you can
teach-In the device again.
F5
Temperature sensor
defective
Device defective - please
contact your specialist
manufactor.
F6
Battery voltage too low,
Valve moved to error
Position Replace the batteries
of the radiator thermostat
Slowly flashing
Connection to taught-in
Check the power supply and
