Saunier Duval DHW flow sensors for Xtrafast, Themaclassic, Isofast, Isomax, Isotwin, Themaplus, Xtramax and Thema boilers. A sensor or thermistor reduces the resistance of a circuit as its temperature increases. The boiler’s printed circuit board (PCB) sends current to the thermistor and reads the relative resistance to determine whether heat reduction or increase is required.
This part fits:
- 96
- Xtramax
- Plus F 24 E
- F 35 E
- F 30 E
- Condens F 30 E
- Condens F 24 E
- F 28 E
- 2000
- 120
- Plus F 30 E
- F 24 E
- Condens F35E