Viessmann Vitoligno 300-C Installation And Service Instructions For Contractors page 79

Pellet boiler
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Maintenance
Extension kit for heating circuit with mixer
(cont.)
2. At plug
3. Refit the casing cover.
gS
, swap the cores at terminals " " and " ".
gS
|
BU
~
Fig. 45
Specification, extension kit
Extension kit installation instructions
79

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