Viessmann Vitodens 200 Technical Manual page 140

4.2 Design and sizing information for connection on the flue gas side
Plastic (PPs) balanced flue system for vertical outlets on sloping and flat roofs
(type C , according to TRGI '86/96)
33x
For vertical roof outlet
if the Vitodens is installed in an attic
The roof outlet may only be used, where
the ceiling of the occupied room also
forms the roof or only the roof structure
is located above the ceiling (pitched attic).
Note
Condensing boiler with an output of
> 50 kW must be installed in a separate
and ventilated installation location
(according to FeuVo [Germany])
(Vitodens 300 with 66 kW).
When the balanced flue system is routed
through a roof space, which is not used
as accommodation, run the flue pipe
through an additional metal pipe as
protection against mechanical damage
(TRGI '86/96, point 5.6.1.2).
It may also be routed behind a jamb wall
or a solid wall of an attic built as
accommodation, if the fire protection
class of the jamb wall corresponds to that
of the ceiling (e.g. B 30).
Minimum distances to combustible
materials inside the installation location
or in connection with the roof outlet are
not required.
4
140
It was verified as part of the CE approval
test that nowhere on the Vitodens or the
balanced flue system will surface
temperatures higher than 85 ºC occur.
H Vitodens 300, 13 kW and 343:
Int. dia. flue pipe ∅ 60 mm
Int. dia. ventilation pipe ∅ 100 mm
H Vitodens 200, Vitodens 300, 26 kW to
35 kW and Vitodens 333:
Int. dia. flue pipe ∅ 80 mm
Int. dia. ventilation pipe ∅ 125 mm
H Vitodens 300 from 49 kW:
Int. dia. flue pipe ∅ 100 mm
Int. dia. ventilation pipe ∅ 150 mm
Max. number of bends
H 87º 2 pieces
or
H 45º 3 pieces
For a different number of bends, deduct
or add to the given max. extended pipe
length 1 m per 87º bend or 0.5 m per 45º
bend.
Inside the installation room, install an
inspection aperture for checking and
cleaning the flue pipe.
The vertical roof outlet has been tested
and CE-designated as a concentric
balanced flue system as one technical
unit with the Vitodens condensing boiler.
A function verification according to
EN 13384 is not required.
Vertical flat roof outlet
Integrate the flat roof collar into the roof
skin according to the flat roof guidelines
(see page 176). Push the roof outlet into
the roof from above and position it on the
flat roof collar.
Note
The ceiling aperture should have a
diameter of at least the stated size:
System size ∅ 60 mm:
System size ∅ 80 mm:
System size ∅ 100 mm:
Secure the roof outlet with a clamp to the
roof after the installation has been
completed.
Maintain minimum clearances of 1.5 m
towards each other and other
components in accordance with FeuVo
[Germany], when installing several
vertical roof outlets adjacent to each
other.
VITODENS
105 mm
130 mm
160 mm