Viessmann Vitoligno 300-H Installation And Service Instructions For Contractors page 81

Boiler for woodchips and pellets
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Checking the heat exchanger cleaning
Cleaning the heat exchanger (if required)
Removing the turbulators
2.
4x
6x
4x
2x
1.
Fig. 63
1. Pull out the spring pin.
2. Pull out the bolts.
Commissioning, inspection, maintenance
(cont.)
3.
3. Remove the cover.
81

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