With hydrosensor, set value range 0–30 °C, mechanical isolating function (“0” position), frost protection approx. 6 °C adjustable. Limitation and locking of set value range by means of stop pins 1 9551 00 (to be ordered separately).

With hydrosensor, set value range 6–28 °C cannot be shut off mechanically, frost protection approx. 6 °C adjustable. Limitation and locking of set value range by means of stop pins 1 9551 00 (to be ordered separately).