891R
Thermostatic control head with oil-filled element

Scale values: 0 to 5.
Adjustable temperature range: 0°C, 28°C.
Antifreeze position set: 5 °C. 
Device to restrict or lock temperature setting included. 
Hysteresis: 0,80K.
Water temperature effect (W): 0,80K.
Response time: (Z): 30min.
Maximum differential pressure: 1,5 bar.
Energy efficiency class: A.