Kostrzewa Twin Bio Manual De Uso página 58

58 4. Twin Bio boiler design
4.G. Boiler sensor installation
The boiler is fi tted with a safety temperature limiter STB
factory set to 90°C. If the set temperature is exceeded the STB
stops the burner and the fuel feeder operation.
Alarm is displayed. Check and remove the cause of boiler
overheating. Allow the boiler to cool, remove the STB nut
and press the button.
The boiler temperature sensor [3] and the STB [4] must
be installed in the boiler temperature sensor casing [7].
The sensors must be fi xed securely.
Fig. Sensors
4.H. Wiring system
General guidelines on the wiring systems of boiler control,
boiler and its accessories:
1. A 230 V/50 Hz power system conforming to local standards
and regulations must be available in the boiler room.
2. The wiring system must be terminated with a plug-in socket
and a protective conductor contact.
3. The wiring system must be installed in accordance with
the electrical diagram and local regulations concerning
electrical safety.
Experts in heating
WARNING!!!
Incorrect boiler sensor installation may result
in overheating and faulty system operation.
1. safety temperature limiter (STB)
switch cover
2. safety temperature limiter (STB)
mounting nut
3. boiler temperature sensor
4. safety temperature limiter STB
temperature sensor
5. electrical cable duct
6. safety temperature limiter (STB)
7. boiler temperature sensor
housing
WARNING!!!
Using the socket without
a protective conductor contact
may result in electric shock!
User Manual Twin Bio - PLV 09.13
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3. czu
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