Viessmann Vitoligno 300-C Installation And Service Instructions For Contractors page 13

Fitting accessories for room sealed operation
6. Secure the ventilation air hose to the ventilation air
box with a hose clip.
B
A
Fig. 5
Routing with the ventilation air connection at the
A
back
Routing with the ventilation air connection at the
B
top
1. Route the ventilation air hose inside the boiler.
Note
■ Route the ventilation air connection to either the
back or the top of the boiler, as required.
■ Cut out the casing panel for the ventilation air
connector at the perforation.
If fitting the ventilation air connection at the top of
■
the boiler, the ventilation air connection must be
disconnected for subsequent maintenance work.
This is required to remove the rear top panel.
2. Secure the ventilation air hose to the ventilation air
connector with a hose clip.
(cont.)
3. After fitting the side panel (see page 15):
Insert the ventilation air connector into the casing
panel on the inside and secure it with screws from
the outside.
Ventilation air connector
7
On-site air supply at ventilation air connector
Max. length
Max. number/angle of pipe bends
Installation sequence
80 mm
15 m
4/90°
13