Viessmann VITOLADENS 300-W Installation And Service Instructions Manual page 8

Preparing for installation
Preparing for installation
G Wiring area
H Dimension for installation with DHW
cylinder below
1. Prepare the water connections. Thor-
oughly flush the heating system.
2. Prepare the oil connections (oil fil-
ter).
■ Single line filter (magnum filter
bowl with large filter element, filter
grade max. 40 µm) with automatic
fuel oil air vent valve (see
page 12).
■ Fit the filter as near as possible to
the lower edge of the boiler (on l.h.
or r.h. side) to leave the flexible oil
lines inside the boiler long enough
to remove the burner.
3. Prepare the electrical connections.
■ Power cable: NYM-J 3 x 1.5 mm
max. fuse 16 A, 230 V/50 Hz
■ Accessory cables: NYM with the
required number of conductors for
the external connections
■ Allow all cables in area "G" to pro-
trude 1200 mm from the wall
8
(cont.)
K Condensate drain
2 ,