308
Thermo E+ 120/200/320
3 Assemblies and components
3.1.7 Temperature sensors with
water temperature sensor and
integrated overheating protection
The water temperature sensor captures the coolant
temperature at the heat exchanger outlet as electrical
resistance.This signal is transmitted to the control device,
where it is processed.
The overheating protection integrated into the tempera-
ture sensor is responsible for temperature limitation. As
with the temperature sensor, the coolant temperature is
captured at the heat exchanger outlet as electrical
resistance and transmitted to the control device.
Overheating protection prevents inadmissibly high heater
operating temperatures.
At a temperature greater than 140°C heater deactivation
and interlocking is initiated.
The cable between the plug and the temperature sensors
is shorter with the Thermo E+ 120 than with the Thermo
E+ 200/320.
All Thermo E+ temperature sensors have a red mark (see
) on the cable.
They are not compatible with the other heaters manu-
factured by Valeo.
Fig. 308 Temperature sensors
Water temperature sensor
with integrated overheating
protection
(Temperature sensors)
Plug, 3 pole
Mark
Summary of Contents for Thermo E+ 120
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