Viessmann VITODENS 100-W Installation And Service Instructions Manual page 14

Installation sequence
Fitting the boiler and making connections
Connection, safety valve and condensate drain
A
■ The condensate pipe is connected
with the discharge pipe of the safety
valve. The condensate hose supplied
meets the temperature requirements
that are part of the CE certification.
■ Connecting the condensate pipe inter-
nally to the domestic waste water sys-
tem, either directly or via a tundish or
washing machine trap, is recommen-
ded.
14
(cont.)
■ If the condensate pipe is routed out-
side the building, use a pipe with at
least 7 30 mm and protect this pipe
from frost. Avoid long external pipe-
lines.
!
Please note
Frozen condensate pipes can
result in faults and damage to
the boiler.
Always insulate condensate
pipes against frost.
■ Observe local building regulations.
Connect condensate pipe A to the pub-
lic sewage system with a constant fall
and a pipe vent.
Observe the local waste water regula-
tions.
Note
Fill the siphon with water before com-
missioning.