Viessmann maximum thermostat control box kr/rukr (old types): original Viessmann spare part, type: Thermostat. Application: Boiler (Vitocrossal 300). Manufacturer number: 7820036; Instalpunt article number: 8690152.
According to the Viessmann parts lists, this part fits 2 models, including Viessmann Vitocrossal 300 and Viessmann Vitoplex 100 SX1. The full list is under “Fits”.
This item is in stock and usually arrives within 3–5 working days.
Check the rating plate of your appliance before ordering; if in doubt, ask the manufacturer or your installer. Work on gas-carrying parts must be carried out by a qualified gas engineer.




