Viessmann Vitoligno 300-H Installation And Service Instructions For Contractors page 83

Checking the heat exchanger cleaning
Fig. 65
5. Tilt the rocker upwards.
6. Pull the turbulators upwards one by one.
Cleaning the heat exchanger and 2nd flue
1. Clean the heat exchanger with a cleaning brush
and vacuum cleaner.
5.
2. Remove the cover from the 2nd flue.
3. Clean the 2nd flue.
Commissioning, inspection, maintenance
(cont.)
6.
83