Viessmann Vitodens 050-W Installation And Service Instructions Manual page 14

Installation sequence
Mounting the boiler and making the connections
Making the connections on the water side
A Heating flow G ¾
B DHW G ½
1. Mount fittings with gaskets.
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A B
¨
C D
C Cold water G ½
D Heating return G ¾
2. Install filling equipment on site.
The filling equipment must meet the
Fittings Directive G24.2a.
(cont.)