Viessmann VITOCELL 300-H Service Instructions Manual page 12

Appendix
Final decommissioning and disposal
Viessmann products can be recycled. Components
and substances from the system are not part of ordi-
nary household waste.
12
For decommissioning the system, isolate the system
from the power supply and allow components to cool
down where appropriate.
All components must be disposed of correctly.