The Rosswein 70.1 (also referenced as model 70.1) is a classic-style radiator thermostatic head(Thermostatkopf / Heizungsregler) featuring an older thread connection.
Because it is a legacy component ("alte Bauart"), its primary datasheet details are preserved as follows: [
1]
- Connection Thread: M33 x 2.0 mm (older Rosswein / Vaillant / Honeywell standard, distinct from the modern M30 x 1.5 mm standard).
- Sensor Type: Liquid-filled element (Flüssig-Fühler) for rapid thermal response time.
- Control Range: Typically 7 °C to 28 °C (standard for radiator valves).
- Remote Version Option: Integrated capillary tube, 2 meters long.
- Scale Settings:
❄ (Frost protection at ~7 °C) up to setting 5 (~28 °C).