Fitting The Connection Unit To The Boiler - Viessmann VITOLIGNO 300-C Installation And Service Instructions Manual

Installation

Fitting the Connection Unit to the Boiler

32
Vitoligno 300-C Installation/Service
For screw coveyor only
1. Fit the left hand side panel on the left hand side of the
boiler. Route the cable for the charging unit with plug
B and lead D for the pellet sensor through the
opening in the side panel.
Note: The parts are at the front right suspension rail.
For pellet supply via vacuum module and screw conveyor
2. Push the supplied fiber rope gasket seal onto the
screw conveyor tube of the connection unit as far as
the front flange.
3. Insert the threaded studs with the short thread into

the supply flange on the boiler.
Push the flat gasket onto the threaded studs.

Push connection unit onto the threaded studs.

Position the connection unit parallel to the top of

the boiler (not horizontally as the boiler is positioned
with a slight slope towards the front) and secure
with nuts. Torque: 14.7 lb.ft (20 Nm).
4. Position the gasket on the connection unit.
Note: Parts for steps 4 and 5 can be found in the box
for the pellet hopper with vacuum module.
5. Secure intermediate flange with 4 screws. Ensure
correct positioning: Incline A on the side facing away
from the boiler.
6. Insert plug B into connection unit motor C.