Viessmann Vitoligno 300-C Installation And Service Instructions For Contractors page 26

Installation sequence
Connecting the pellet supply and return air...
B
Fig. 19 Dimension a: approx. 1000 mm
Pellet supply hose
A
B Return air hose
1. Trim the hoses to the required length.
Allow an extra 50 mm for connection of the earth
wire at the end of each hose.
Expose the earth by approx. 50 mm at each hose
end. Bend the earth wire inwards into the hose.
2. Make a bare metal connection at all connectors
(including that on the room discharge system).
Note
Remove the protective caps from the connectors.
26
5.
A
(cont.)
4.
1.
3.
5 0
2.
3. Push hoses with earth wire over the bare metal part
of the connectors.
4. Secure the hoses to the connectors using hose
clips.
5. Secure hoses with clips at least every 1000 mm.