The luminous indicator (Red LED) above the control knob will indicate the status of the
heating:
LED lit: heating on or the set temperature has not been reached
LED not lit: heating off or the set temperature has been achieved
The TEI 1 is operated by turning the control knob:
Turning it clockwise allows you to increase the temperature.
Turning it anti-clockwise allows you to reduce the temperature. The temperature can be
regulated from approx. 10°C to 30°C, including a frost protection setting of approx. 5°C.
With reference to the luminous indication (red LED) the settings correspond as follows:
Setting *: approx. 5°C (frost protection)
Setting between * & 1: approx. 10°C
Setting 4: approx. 20°C
Setting 6: approx. 30°C
Note – forced turning beyond the end settings of the control knob will cause damage to the
thermostat components and as such will invalidate the warranty.