Condensate Connection - Viessmann VITODENS 200-W B2HE 85 Installation Instructions Manual

Boiler Connections

Condensate Connection

Legend
A Flexible discharge tubing
B Discharge tubing
Condensate installation example:
22
Vitodens 200-W B2HE 85, 120, 150, 199 Installation
Condensate connection
The Vitodens 200-W B2HE boiler comes with a built-in
condensate trap. An external trap is not required when
connecting the field drain to flexible discharge tubing.
Discharge tubing (field supplied) must be of 1 in.
diameter.
Use CPVC, PVC or other material approved by codes
listed below.
The drain pipe and fittings must conform to ANSI
standards and ASTM D1785 or D2846. CPVC or PVC
cement and primer must conform to ASTM D2564 or
F493. In Canada use CSA or ULC listed schedule 40
CPVC or PVC drain pipe, fittings and cement.
If the condensate outlet of the Vitodens 200-W boiler
is lower than the drain, a condensate pump must be
installed. Select a pump which is approved for condensing
boiler applications. To avoid condensate spillage, select
a pump with an overflow switch. The drain connection
must terminate into an open or vented drain as close to
the boiler as possible to prevent siphoning of the boiler
drain.
1. Install the condensate drain pipe onto the boiler
with a suitable gradient. Ensure that there is no
unnecessary bends are created inside the boiler.
Check tightness of siphon connection.
IMPORTANT
As shipped, the flexible discharge tubing A will be found
with the installation fittings. Ensure the condensate drain
pipe is installed and positioned to allow the condensate to
Air gap
properly drain.
2. Discharge condensate from the boiler into the vented
drainage system, either directly or (if required) via a
neutralization unit (accessory).
IMPORTANT
Pipe ventilation must take place between the siphon trap
and the neutralization unit (if applicable).
IMPORTANT
Do not connect the drain pipe from any other boiler, such
as water softener backwash pipe, to Vitodens condensate
drain pipe.
3. Ensure the condensate discharge tubing is vented
to the atmosphere prior to being plumbed into the
neutralization unit.
Installation Instructions of Neutralization Unit
(if applicable)