3
Operation of the system
■
Always operate devices in dry indoor
rooms (never in bathrooms).
■
Never operate devices in rooms where
there is a risk of explosion.
■
Protect devices from:
–
Moisture
–
Dust
–
Liquids
–
Vapours
–
Direct insolation
–
Other direct thermal radiation
■
After a power failure or restart, check
the status of the wireless components.
■
Never touch the power supply unit/
power cable with wet hands.
Danger
Damaged equipment poses a
safety hazard.
Check the appliance for external
damage. Never start up a damaged
appliance.
Auxiliary components and individual parts
For replacement, use only spare parts
supplied or approved by Viessmann.
Danger
Connecting unsuitable power sup-
ply units/power cables poses a fire
risk.
Only connect the power supply unit/
power cable provided.
Safety instructions
Safety instructions
(cont.)
5839615
Summary of Contents for Vitotrol 300-E
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