Page 1
HERZ ETKF
ETKF
Energy Saving Thermostatic Head
Data sheet
8250,
Issue 1011
Energy Saving Thermostatic Head 1 8250 02
Size in mm
Version
1
8250
01
Energy Saving Thermostatic Head
The actuator with built in programmable temperature, time control and wireless receiver.
Thread connection M 28 x 1,5
Technical data
Setting range:
5 °C bis 30 °C
Differential:
0,5 K
Batteries:
2 x 1,5 V AA, LR6, Battery life approx. 2 years
Receiver frequency:
868,3 MHz
max. surrent consumption:
100 mA
Ambient temperature:
+5 °C bis +55 °C
max. surface temperature:
+90 °C (of radiator)
linear stroke:
4,2 mm
Application
The actuator can be installed on all HERZ-TRVs with M28x1,5.
Function
This energy saving controller for radiators can be used to control room temperature an the basis of time. The actuator moves
a valve, thereby allowing the amount of heat flowing to the heating appliance to be controlled.
The controller is compatoble with the most HERZ TRVs. The large illuminated display ensures user-friendly operation. A wire-
less receiver allows the device to receive commands from taught-in system components.
