Condensate Connection - Viessmann VITODENS 100-W Technical Data Manual

Condensate Connection

Install the condensate drain pipe (Ø
22mm) with a suitable gradient (min. 2.5%).
Discharge condensate from the boiler into
the drainage system, either directly or (if
required) via a neutralization unit
(accessory).
Condensate Connection for Vitodens 100-W
H model WB1A 8-24, 8-30
Condensate Drainage and Condensate Neutralization
The condensate formed both in the
condensing boiler and in the flue gas pipe
must be discharged into the public sewage
system in accordance with all applicable
local regulations.
The condensate produced by a gas-fired
heating system has a pH value between 3
and 4.
Some local codes may require the use of a
separate neutralization unit to treat the
aggressive and corrosive condensate.
With a neutralization unit installed, all
condensate from the boiler and the flue gas
pipe enters into the neutralization unit
where it is treated and released into the
public sewage system with a safe pH value
of above 6.5.
The use of neutralization granulate
(performing the neutralizing process) is
dependent on the operation of the heating
system. To determine the required refill
amount, check granulate level several times
during the first year of operation. In some
cases one granulate fill may last an entire
year.
Contact Viessmann to order a neutralization
unit for the Vitodens 100-W boiler.
See Viessmann Price List for order
information.
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/ " /
The condensate drain of the Vitodes 100-W
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boiler is equipped with a built-in siphon trap
in order to keep flue gases from being
discharged via the condensate drain.
Discharge tubing
The condensate discharge outlet to the
drainage system connection must be clearly
visible. It must be installed with a suitable
gradient and provided with a stench trap.
If the condensate outlet of the
Vitodens 100-W boiler is lower than the
drain, a condensate pump must be used.
Only corrosion-resistant materials may be
used for condensate drainage purposes (e.g.
braided hose). Do not use galvanized
materials or materials containing copper for
piping, couplings etc.
The condensate drain must have a trap to
prevent flue gas leakage.
Please note that other requirements may
apply depending on local regulations and/or
project-specific details.
Condensate Connection/Neutralization Unit
IMPORTANT
Pipe ventilation must take place between
the siphon trap and the neutralization unit (if
applicable).
It is advisable to contact your local
waterworks office (authority responsible for
waste water regulations) well before
commencing with the installation of the
neutralization unit in order to establish
details of local regulations that apply.
The following table shows the concentration
of (effluent) substances (e.g. heavy metals)
contained in the waste water from the
Vitodens 100-W condensing boiler.
Condensate
(effluent)
substances
Lead
Cadmium
Chromium
Copper
Nickel
Zinc
Tin
Values measured
in mg/ltr
Vitodens 100
< 0.01
< 0.005
< 0.01
< 0.01
< 0.01
< 0.05
< 0.05
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