Condensate Connection - Viessmann VITODENS 200-W Technical Manual

Design information

4.2 Condensate connection

Route the condensate drain pipe with a constant fall.
Route the condensate from the flue system (if equipped with a drain),
together with the boiler condensate directly or (if installed) via a neu-
tralising system (accessory) to the public sewage system.
Vitodens 200-W, 45 and 60 kW
A Drain hose (standard delivery for the Vitodens)
B Drain outlet kit (accessory)
Vitodens 200-W, 80 and 100 kW
A Drain hose (standard delivery for the Vitodens)
B Drain outlet kit (accessory)
Condensate drain and neutralisation
Drain the condensate created during the heating operation in the con-
densing boiler and in the flue pipe in accordance with appropriate reg-
ulations. With gas combustion, the condensate will have a pH value
between 4 and 5.
The Code of Practice DWA-A 251 on "Condensate from condensing
boilers", which is generally based on the local waste water regulations
[in Germany], determines conditions for draining condensate from
condensing boilers into the public sewer system.
The composition of condensate drained from Vitodens condensing
boilers meets the requirements specified in Code of Practice DWA-
A 251.
The condensate drain pipe to the sewer connection must be freely
accessible for inspection.
VITODENS 200-W
(cont.)
A
B
A
B
Note
A pipe vent valve must be installed between the siphon and the neu-
tralising system.
Vitodens 200-W, 125 and 150 kW
A Drain hose (standard delivery for the Vitodens)
B Drain outlet kit (accessory)
It must be installed with a continuous fall and must contain a stench
trap. Also provide a suitable facility for extracting samples.
Condensate drain pipes must only be made from corrosion-resistant
materials (e.g. reinforced hoses).
Never use any zinc-plated materials or those containing copper
for pipes, connection pieces, etc.
A siphon is installed in the condensate drain to prevent flue gases
escaping.
Local waste water regulations and/or specific technical circumstances
may specify designs that vary from those described in the above
Codes of Practice.
A
B
VIESMANN
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