Condensate Connection; Gas Connection - Viessmann VITODENS 200-W Installation Instructions Manual

Condensate connection

Gas connection

A
Notes regarding operation with LPG.
We recommend the installation of an
external safety solenoid valve when
installing the boiler in rooms below
ground level.
1. Seal in gas shut-off valve A at the
gas connection.
10
Connect the condensate drain with a
slope and a pipe vent to the public
sewer.
Observe the Building Regulations.
Where the condensate drain pipe is
routed outside, it must have a diameter
of at least 30 mm and must be protected
against frost through sufficient lagging of
the pipe. Avoid excessive pipe runs at
the outside wall.
2. Carry out a tightness test.
Note
For the tightness test, use only suita-
ble and approved leak detecting
agents (EN 14291) and devices.
Leak detecting agents with unsuita-
ble constituents (e.g. nitrites, sul-
phides) can lead to material dam-
age.
Remove residues of the leak detect-
ing agent after testing.
!
Please note
Excessive test pressure may
damage the boiler and the gas
valve.
Max. test pressure 150 mbar.
Where higher pressure is
required for tightness tests,
separate the boiler and the
gas valves from the gas sup-
ply pipe (undo the fitting).