Viessmann Vitodens 300 Installation Instructions Manual page 6

Preparing for installation
Note
This boiler (protection level: IP X4 D)
is approved for installation in wet
rooms inside protection area 1
according to DIN VDE 0100, providing
the occurrence of hosed water can be
excluded.
Observe the requirements of DIN VDE
0100.
1. Prepare the water connections.
Flush the heating system thor-
oughly.
6
(cont.)
2. Prepare the gas connection
according to TRGI or TRF [or local
regulations].
3. Prepare the electrical connections.
& Power supply cable: NYM-
J 3 x 1.5 mm
230 V~.
& Accessory cables: NYM with the
required number of conductors
for the external connections.
& Allow all cables in area "H" to
protrude 1200 mm from the wall.
2
, fuse max. 16 A,