Viessmann Vitodens 100-W WB1B Installation And Service Instructions Manual page 12

Installation sequence
Installing the boiler and making all connections
Condensate connection
Filling the siphon with water
12
(cont.)
Connect condensate drain A with a
slope and a pipe vent to the public
sewer.
Observe the local waste water regula-
tions.
Note
Fill the siphon with water before start-
up.
Fill a minimum of 0.3 l of water into the
flue gas connection.
!
Please note
At commissioning, flue gas may
be emitted from the condensate
drain.
Fill the siphon with water before
start-up.