Viessmann Vitodens 050-W Installation And Service Instructions Manual page 7

Preparing for installation
■ Safety valve
■ Diaphragm expansion vessel
■ Plate heat exchanger for DHW heating
Accessory connection
A time switch (accessory) can be con-
nected to the control unit and supplied
with low voltage.
Siting
Siting is possible, for example, in the fol-
lowing locations:
■ Recreation rooms and other living
spaces
■ Ancillary rooms without their own ven-
tilation
Operation of the Vitodens 050-W in wet rooms
e a
A r
2
The Vitodens is approved for installation
in wet rooms (e.g. bathroom or shower
rooms) (protection IP X4 D, splash-
proof).
(cont.)
■ Compartments (open at the top)
■ Recesses without compulsory clear-
ance towards combustible materials
■ Attic rooms (pitched attics) where the
balanced flue can be routed directly
through the roof
Since the flue pipe connection for room-
sealed operation is surrounded by com-
bustion air (coaxial pipe), maintaining
clearances from combustible materials
is not required. For further details, see
the technical guide "Flue systems for the
Vitodens".
The installation area must be safe from
the risk of frost.
6 0
0
A r
e a
1
A r
e a
0
Area 2
When installing the Vitodens in wet
areas, observe the safety zones and
minimum wall clearances according to
regulation (see also "Electrical safety
zone"). The Vitodens may be installed in
safety zone 1 if hosed water (e.g. from
massage showers) is prevented.
Preparing for installation
7