Viessmann VITODENS Quick start guide

VIESMANN VITODENS AND VITOSOLAR
Flue systems for gas condensing boilers
1.9 to 150.0 kW
FLUE SYSTEMS VITODENS AND
VITOSOLAR
5414 641 GB 5/2013
Technical guide

Index
1. Flue systems 1. 1 Flue systems ............................................................................................................... 4
■ Structural unit .......................................................................................................... 4
■System certification ................................................................................................. 4
1. 2 Balanced flue operation .............................................................................................. 4
1. 3 Open flue operation ................................................................................................... 5
1. 4 Flue gas high limit safety cut-out ................................................................................ 5
1. 5 Lightning protection .................................................................................................... 5
1. 6 CE certification for PPs flue systems (rigid and flexible) for the Vitodens .................. 6
1. 7 Flue installation options for balanced flue operation ................................................... 8
■ In the living space (occupied area) with one or more full storeys above ................ 8
■In the living space (occupied area), immediately underneath the roof or with only
attics above (rated heating output ≤ 50 kW) ........................................................... 9
■In the installation room, with ventilation air supplied through the external wall ....... 9
■ Several Vitodens in the living space or in occupied areas (living space - rated heat-
ing output ≤ 50 kW) ................................................................................................. 9
1. 8 Flue installation options for open flue operation ......................................................... 10
■ In the installation room (non-living space) with one or more full floors above (com-
pulsory for the Vitodens 200-W from 60 kW) .......................................................... 10
■ Special version: Open flue operation and installed in the living space (occupied
area) with interconnected room air supply (rated heating output ≤ 35 kW) ............ 11
■ Flue gas header for several Vitodens 200-W, 222-W and 222-F – positive pressure 11
■ Flue gas header for several Vitodens – negative pressure ..................................... 11
2. Design and sizing information for
connection on the flue gas side
2. 2 Plastic (PPs) balanced flue system for routing through a shaft – balanced flue oper-
ation (type C93x to TRGI 2008) .................................................................................... 12
■ Internal shaft dimensions to DIN V 18160 .............................................................. 12
■ Flue, system size 60, 80 and 100 (components) (type C93x according to TRGI 2008) 14
■ Vitodens in conjunction with solid fuel boilers ......................................................... 15
■ Flue, flexible, system size 60, 80 and 100 (components) (type C93x according to
TRGI 2008) ............................................................................................................. 17
2. 3 Plastic (PPs) balanced flue system for vertical routing through a pitched or flat roof
(type C33x, to TRGI 2008) ........................................................................................... 18
■ For vertical roof outlets when the Vitodens is installed in attics .............................. 18
■ Vertical flat roof outlet ............................................................................................. 18
2. 4 Plastic (PPs) balanced flue system for external wall connection (type C13x to TRGI
2008) ........................................................................................................................... 20
■ Max. total length of the flue pipe ............................................................................. 20
2. 5 Plastic (PPs) flue/ventilation air system for separate ventilation air and flue gas routing
(type C83x to TRGI 2008) ............................................................................................ 21
2. 6 Plastic (PPs) balanced flue system for routing over external walls (type C53x, to TRGI
2008) ........................................................................................................................... 22
2. 7 Plastic (PPs) balanced flue system for routing through a lightweight shaft ................ 24
■ "UNIFIX" shaft profiles offered by Skoberne (made from aerated concrete) .......... 24
■ "SKOBIFIXnano" and "SKOBIFIXXs 30" shaft profiles offered by Skoberne (made
from foamed ceramics) ........................................................................................... 24
■ Anchoring for roof outlets with shaft profiles ........................................................... 25
■ Shaft profiles offered by Promat ............................................................................. 25
■ Roof outlet for shafts with Promat profiles .............................................................. 26
2. 8 Plastic (PPs) balanced flue system for routing multiple pipes through a shaft ........... 26
■ Layout examples ..................................................................................................... 27
2. 9 Plastic (PPs) balanced flue system (connection pipe) for connecting multiple flues to
a single room sealed balanced flue system ................................................................ 27
■ Room sealed balanced flue system, negative pressure (type C43x, to TRGI 2008) 28
■ Room sealed balanced flue system, positive pressure – multiple connection with
the Vitodens 200-W, 222-W and 222-F up to 26 kW (type C43x to TRGI 2008) ...... 28
Index
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2.10 Plastic (PPs) flue pipe for routing through a shaft – open flue operation (type B, to
TRGI 2008) ................................................................................................................. 31
■ Internal shaft dimensions ........................................................................................ 31
■ Flue, system size 60, 80 and 100 (components) (type B23 /B33 according to TRGI
2008) ....................................................................................................................... 32
■ Flue, flexible, system size 60, 80 and 100 (components) (type B23 to TRGI 2008) 34
■ Special version: open flue operation with combustion air interconnection for the
Vitodens up to 35 kW (type B33 to TRGI 2008) ....................................................... 35
■ Connection to a moisture-resistant chimney (MR chimney negative pressure) with
a plastic (PPs) flue pipe (type B23x, according to TRGI 2008) ................................ 36
■ Multi boiler systems with flue systems under positive pressure (open flue operation)
– Vitodens 200-W, Vitodens 222-W and 222-F ...................................................... 37
■ Multi boiler systems with flue systems under negative pressure ............................ 45
3. Flue system components 3. 1 Balanced flue system components ............................................................................. 45
3. 2 Components for routing a flue over an external wall .................................................. 49
3. 3 Single pipe system components ................................................................................. 51
3. 4 Components for multiple connections to a room sealed balanced flue system – pos-
itive pressure for the Vitodens 200-W, 222-W and 222-F, 19 to 26 kW ..................... 55
3. 5 Components of the flexible single pipe system for flexible flues ................................. 56
3. 6 Components for multi boiler systems .......................................................................... 57
■ Flue gas header ...................................................................................................... 57
3. 7 Roof elements ............................................................................................................. 58
4. Keyword index .............................................................................................................................................. 60
Index (cont.)
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1.1 Flue systems
The following requirements regarding design and installation apply to
flue systems for condensing combustion equipment:
Prior to starting work on the flue system, your heating contractor
should confer with the responsible flue gas inspector [where
applicable].
Gas combustion equipment must be connected to the domestic chim-
ney on the same floor where it is installed (no transition through sep-
arating ceilings).
Here, differentiation is required as to whether the condensing boiler
should be installed in the living space (occupied rooms) or in the non-
living space (installation room).
Siting the Vitodens in the living space is feasible, subject to the flue
inside the living space being routed inside a protective pipe and being
surrounded by ventilation air (balanced flue system, balanced flue
operation).
As a special case, an installation inside the living space is also feasible
for open flue operation, provided a connection piece with secondary
ventilation up to the shaft (operation with interconnected room air sup-
ply) is provided (see page 35).
Structural unit
The aforementioned conditions are generally met when CE-designa-
ted flue systems (accessories) are used together with the Vitodens.
The following Viessmann balanced flue systems for balanced flue
operation are tested to DVGW and are CE-designated as a single
structural unit with the Vitodens:
■ Vertical roof outlet
■ External wall connection
■ Horizontal roof outlet
■ External routing through a coaxial pipe
Advantages of single structural units:
■ No calculated performance verification for flues to EN 13384 is
required for individual cases
■ Simplified visual inspection by the local flue gas inspector every two
years
■ No additional approval certificate by the flue pipe manufacturer is
required
Outside the living space, the flue pipe in the installation room may
also be routed without secondary ventilation. However, the installation
room would then require an adequately sized ventilation air aperture
to the outside (acc. to TRGI 2008).
Rated heating output up to 50 kW:
150 cm2 or 2 × 75 cm2
Rated heating output above 50 kW (e.g. Vitodens 200-W, from
60 kW, or multi boiler systems):
150 cm2 plus 2 cm2 for each kW above 50 kW
aThe country-specific regulations (which may include the TR Gas
and ÖVGW guidelines) apply to the installation of this appliance.
The plain flue must be type approved by the Deutsches Institut für
Bautechnik (DIBt) [Germany] (open flue operation).
The flue available as an accessory is CE-designated and approved in
accordance with EN 14471.
System certification
System certification to EC Gas Appliances Directive 2009/142/EC in
conjunction with PPs flues offered by Skoberne
Vitodens 200-W CE-0085CN0050
Vitodens 222-F CE-0085CN0050
Vitodens 222-W CE-0085CN0050
Vitodens 242-F CE-0085CN0050
Vitodens 300-W CE-0085CM0463
Vitodens 333-F CE-0085CM0463
Vitodens 343-F CE-0085CM0463
Vitosolar 200-F CE-0085CM0184
1.2 Balanced flue operation
Due to the sealed combustion chamber the Vitodens gas condensing
boilers are suitable for balanced flue operation. These boilers are cat-
egorised as equipment type C13x, C33x, C43x, C53x, C63x, C83x or C93x
according to TRGI 2008 ("x" only applies to DE).
With this type of equipment (except C63x) there is a joint approval for
the Vitodens and balanced flue system.
For this type of construction the tightness test (overpressure test) by
the flue gas inspector during commissioning and the verification of
"General Building Regulations approval" by the DIBt may be omitted.
Any approved flue system can be used for type C63x. This flue system
is not tested together with the boilers.
Maintain the dimensions specified on pages 12 to 22. The com-
bustion air is supplied and the flue gas extracted through one concen-
tric coaxial pipe (balanced flue system). The combustion air is supplied
through the annular gap between the external aluminium ventilation
air pipe and the flue pipe. Flue gases are discharged through the inter-
nal plastic pipe (PPs).
For balanced flue systems tested together with the wall mounted gas
boiler there is no requirement for a tightness test during commissioning
by the flue gas inspector.
In such cases we recommend that your heating contractor carries out
a simple tightness test during the commissioning of your system. For
this, it is sufficient to check the CO2 concentration in the combustion
air at the annular gap of the balanced flue pipe. The flue pipe is deemed
to be gas-tight if the CO2 concentration in the combustion air is no
higher than 0.2 % or the O2 concentration is at least 20.6 %.
Check the flue system for tightness by pressure testing if higher CO2
or lower O2 values are established.
In conjunction with the concentric coaxial pipe (balanced flue system),
the surface temperature of the Vitodens or that of the balanced flue
system will never exceed 85 °C. Therefore, clearances to combustible
components according to TRGI are not required.
For boiler types C63x and C43x, the DIBt-approved flue pipes from
Viessmann or alternative DIBt-approved flue pipes by other manufac-
turers may be used.
Use a condensate trap above the boiler flue connection if aluminium
flue pipes are used. Install the connecting pipes (routed horizontally)
with a fall of at least 3° to the boiler. In addition, we recommend using
clips spaced about 1 m apart to support the connection pipe.
The balanced flue system is CE-designated and approved in accord-
ance with EN 14471 (see page 6).
Flue systems
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The boiler casing creates a system that is sealed against its surround-
ings. Any leaks caused by escaping flue gas are returned via the com-
bustion air, thereby preventing flue gas from entering the living
space.
When installing the Vitodens in a basement or on a lower floor, an
existing chimney or shaft of adequate size may be used for the bal-
anced flue operation (type C43x and C93x).
According to TRGI 2008, flues that bridge several floors must be routed
inside a shaft with a fire rating of at least 90 minutes, and for buildings
in categories 1 and 2, a fire rating of at least 30 minutes.
The flue gas/ventilation air is routed to the chimney or shaft in a bal-
anced flue. The flue pipe is then routed inside the chimney or shaft to
above the roof.
Where no suitable shaft is available, the flue may be routed to the roof
through a retrofitted shaft. For this shaft, a Building Regulations test
certificate or a CE designation corresponding to the design of the shaft
is required. In addition, the shaft must have a fire rating of L30 or
L90.
1.3 Open flue operation
(Type B23 and B33)
The flue gas is routed through single wall plastic flue pipes (PPs). The
flue system is CE-designated and approved in accordance with
EN 14471 (see page 6).
The combustion air supply is ensured via the annular gap between the
flue pipe and the ventilation air inlet on the boiler flue connection of the
Vitodens.
Install the connecting pipes (routed horizontally) with a fall of at least
3° to the boiler. In addition, we recommend using clips spaced about
1 m apart to support the connection pipe.
1.4 Flue gas high limit safety cut-out
According to CE designation to EN 14471 the plastic flue pipe (PPs)
can be used for flue gas temperatures of up to 120 °C (type B).
Measures inside the equipment ensure that the flue gas temperature
will never exceed 90 °C.
A flue gas high limit safety cut-out is therefore not required.
1.5 Lightning protection
If a lightning protection system is installed, any metallic flue system
should be included in the lightning protection scheme.
Flue systems (cont.)
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1.6 CE certification for PPs flue systems (rigid and flexible) for the Vitodens
Flue systems (cont.)
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Flue systems (cont.)
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1.7 Flue installation options for balanced flue operation
No separate vents are required in the installation room.
In the living space (occupied area) with one or more full storeys above
AFlue gas
BVentilation air
Routing through a shaft (Type C93x, to TRGI 2008)
The boiler draws combustion air from the outside through the annular
gap in the shaft (chimney) and expels the flue gas via the flue pipe to
above the roof. For condensing boilers > 50 kW the installation room
must be ventilated even with balanced flue operation. The shaft is not
part of the standard delivery. For a detailed description, see from
page 12.
Retrofitted shafts
Installation in a retrofitted shaft approved by the building inspectorate
[Germany], consisting of individual shaft elements (e.g. as supplied by
SIMO, Wienerberger or Skoberne) or including mineral profiles (e.g.
from Promatect). For a detailed description of shafts, see page 24.
AFlue gas
BVentilation air
External wall connection
Only for existing flues with exemption rights
(Type C13x, to TRGI 2008)
(Permissible up to a rated heating output of 11 kW for central heating
or 28 kW for DHW heating)
According to the LandesFeuVo, issue 1999 [Germany], an external
wall connection is only permissible in individual cases, where routing
the flue gas by other means is not appropriate for technical or eco-
nomical reasons.
The boiler draws combustion air from outside via a concentric coaxial
pipe fitted to the external wall and expels flue gas to the outside via
the external wall. For a detailed description, see page 20.
Horizontal roof outlet
(Type C13x, to TRGI 2008)
(No limit for rated heating output)
The boiler draws combustion air from outside via a concentric coaxial
pipe at the dormer and expels flue gas to the outside at the dormer.
AFlue gas
BVentilation air
Routing over external walls
(Type C53x, to TRGI 2008)
The boiler draws combustion air from the outside via a horizontal, con-
centric coaxial pipe on the external wall and expels flue gas to the
outside via the roof.
In the vertical section the external pipe of the concentric coaxial pipe
acts as thermal insulation, thanks to the static air gap. The combustion
air is supplied via the balanced flue air inlet piece.
For a detailed description, see page 22.
Flue systems (cont.)
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In the living space (occupied area), immediately underneath the roof or with only attics above (rated heating
output ≤ 50 kW)
AFlue gas
BVentilation air
CProtective pipe to prevent mechanical damage
Vertical outlet, if no shaft is available
(Type C33x, to TRGI 2008)
(Various design options)
1Direct, vertical roof outlet through a pitched roof
2Indirect, vertical roof outlet through a pitched roof with protective
pipe in the attic (not converted) or fire protection brickwork (con-
verted attic)
3Direct, vertical roof outlet through a flat roof
The boiler draws combustion air from the outside and expels flue gas
to the outside through a concentric coaxial pipe via the roof.
For a detailed description, see page 18.
In the installation room, with ventilation air supplied through the external wall
A
B
AFlue gas
BVentilation air
Separate ventilation air and flue gas routing
(Type C83x, to TRGl 2008)
The boiler draws combustion air from outside via a separate supply
pipe routed through the external wall, and expels flue gas to the outside
via a shaft leading through the roof.
The connection piece to the chimney is designed as a coaxial pipe.
This balanced flue system is used if the existing chimney is unsuitable
for routing combustion air due to its dimensions or characteristics
(deposits).
For a detailed description, see page 21.
Several Vitodens in the living space or in occupied areas (living space - rated heating output ≤ 50 kW)
AFlue gas
BVentilation air
Installation on different floors
(Type C43x, to TRGI 2008)
Operation with negative pressure:
Room sealed balanced flue system required.
Operation with positive pressure:
Balanced flue system for multiple connections.
Several heat sources draw combustion air from the outside through
the annular gap of the room sealed balanced flue system and expel
flue gas to the outside via the roof, through a moisture-resistant inter-
nal pipe.
For a detailed description, see pages 27 and 28.
Flue systems (cont.)
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1.8 Flue installation options for open flue operation
(Separate ventilation air aperture, 150 cm2 or 2 × 75 cm2 cross-section required)
aFor installation in Austria, observe the relevant safety regulations of the ÖVGW-TR Gas (G1) 1985, ÖVGW-TRF (G2), ÖNORM, ÖVGW,
ÖVE and regional regulations.
In the installation room (non-living space) with one or more full floors above (compulsory for the Vitodens
200-W from 60 kW)
AFlue gas
BSecondary ventilation
CVentilation air
Routing through a shaft
(Type B23, to TRGI 2008)
The boiler draws combustion air from the installation room and expels
flue gas through the flue to above the roof (balanced flow).
For a detailed description, see page 31.
AFlue gas
BSecondary ventilation
CVentilation air
Connection to a moisture-resistant chimney (MR chimney)
(Type B23, to TRGI 2008)
The boiler draws combustion air from the installation room and routes
flue gas through the moisture-resistant chimney to above the roof.
For a detailed description, see page 36.
Flue systems (cont.)
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Special version: Open flue operation and installed in the living space (occupied area) with interconnected
room air supply (rated heating output ≤ 35 kW)
AFlue gas
BVentilation air
CSecondary ventilation
DDoor
EInterconnected air supply
Routing through a shaft
or
Connection to a moisture-resistant chimney
(Type B33, to TRGI 2008)
The boiler draws combustion air from the living space via a coaxial
pipe with ventilation air apertures upstream of the shaft inlet and expels
the flue gas either via a flue pipe or via a moisture-resistant chimney
through the roof (combustion air supply via interconnected rooms
according to TRGI).
For a detailed description, see page 35.
Flue gas header for several Vitodens 200-W, 222-W and 222-F – positive pressure
AFlue gas
BSecondary ventilation
CVentilation air
Type B23, to TRGI 2008
Several boilers inside the same room draw combustion air from outside
via ventilation apertures and expel the flue gas through a common flue
pipe to the outside via the roof.
For a detailed description, see page 37.
Flue gas header for several Vitodens – negative pressure
AFlue gas
BVentilation air
Type B23, to TRGI 2008
Several boilers inside the same room draw combustion air from outside
via ventilation apertures and expel the flue gas through a common flue
pipe to the outside via the roof.
For a detailed description, see page 45.
Flue systems (cont.)
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All details regarding length and cross-section in the following tables
are only valid in connection with the balanced flue components offered
in the Viessmann pricelist.
Internal diameter Ø in mm
Flue pipe Ventilation air
pipe
Vitodens 200-W to 35 kW,
Vitodens 222-F, Vitodens 222-W,
Vitodens 242-F, Vitodens 300-W
and 333-F, Vitodens 343-F and
Vitosolar 200-F
60 100
Vitodens 200-W, 45 to 60 kW 80 125
Vitodens 200-W, 80 to 150 kW 100 150
2.2 Plastic (PPs) balanced flue system for routing through a shaft – balanced flue opera-
tion (type C93x to TRGI 2008)
For balanced flue operation, a coaxial flue pipe (internal pipe for flue
gas, external pipe for combustion air) is required as a connection piece
between the Vitodens and the shaft.
The connection piece is fitted to the boiler flue connection and must
contain an inspection port.
Note
Gas condensing boilers with a total rated heating output greater than
50 kW may only be installed in rooms that provide ventilation air aper-
tures to the outside, see page 31.
For installation through shafts or ducts with longitudinal ventilation
which meet the requirements for chimneys to DIN V 18160-1 or have
a fire rating of 90 minutes (L90), or a fire rating of 30 minutes (L30) for
buildings in categories 1 and 2 (max. 2 storeys).
Prior to installation, the relevant flue gas inspector should check that
the shaft to be used is suitable and approved for this purpose.
Shafts that were previously connected to oil or solid fuel boilers must
be thoroughly cleaned by a chimney sweep. Loose deposits of sulphur
and soot must not remain on the inside of the chimney. Running a
balanced flue pipe through the shaft is then not required.
If thorough cleaning is impossible, if chloride deposits are present or
if the shaft is silted up, a separate balanced flue can be used inside
the shaft.
Close off and seal any other connection apertures with appropriate
materials.
This does not apply to any cleaning or inspection apertures that are
provided with chimney cleaning covers and that are identified with an
appropriate test mark.
Check prior to installation whether the shaft runs straight from top to
bottom or if it is offset (check with mirrors).
If the chimney is offset, we recommend installing a flexible flue pipe
(see page 17).
Inside the installation room, at least one inspection port must be pro-
vided in the flue system for checking and cleaning as well as for check-
ing the pressure (if required). If the flue pipe is not accessible from the
roof, a second inspection port must be provided in the attic, behind the
chimney cleaning hatch. For further information, see FeuVo [Ger-
many].
Provide an inspection port at the base of the shaft for checking the
secondary ventilation. Safeguard the draining of the condensate from
the flue into the boiler by maintaining an appropriate fall of at least
3°.
The flue system must be routed to above the roof (protrusion above
the roof according to local regulations).
Alternative CE-designated flue pipes may be used, for example if a
larger flue pipe diameter is required, i.e. for greater flue lengths. The
performance verification to EN 13384 should then be provided by the
respective flue manufacturer.
If flue pipes other than those offered as accessories (which are
approved with the Vitodens as a single structural unit) are used, the
flue system must be checked for tightness by the flue gas inspector
prior to commissioning.
In accordance with the flue system approval certificate, this may be
carried out by measuring the CO2 or O2 value inside the annular gap.
If this test results in a CO2 content above 0.2 % or an O2 content lower
than 20.6 %, check the flue system for tightness.
Internal shaft dimensions to DIN V 18160
a
b
a
c
Note
According to the approval certificate, internal shaft dimensions smaller
than those shown in the tables may also be used for balanced flue
operation, if this is indicated by the performance verification to
EN 13384.
Minimum internal shaft dimensions
System size AExternal diameter, fem.
connection
Minimum internal shaft dimension
a b c
Square or rectangular
(short side)
Round
Ø mm mm Ø mm
60 73 113 133
60 (flexible, shaft cover PPs) 72 112 132
60 (flexible, shaft cover metal) 87 140 147
Design and sizing information for connection on the flue gas side
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System size AExternal diameter, fem.
connection
Minimum internal shaft dimension
a b c
Square or rectangular
(short side)
Round
Ø mm mm Ø mm
80 94 135 155
80 (flexible, shaft cover PPs) 102 142 162
80 (flexible, shaft cover metal) 116 165 176
100 128 170 190
100 (flexible, shaft cover PPs) 127 167 187
100 (flexible, shaft cover metal) 142 182 202
Reduced internal shaft dimensions
System size AExternal diameter, fem.
connection
Reduced internal shaft dimension
a b c
Square or rectangular
(short side)
Round
Ø mm mm Ø mm
60 73 112 112
80 94 120 135
100 128 150 165
Minimum dimension of shafts in which a flue may be used without
separate calculation (positive pressure operation).
Design and sizing information for connection on the flue gas side (cont.)
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Flue, system size 60, 80 and 100 (components) (type C93x according to TRGI 2008)
67981
2
2
A
3
2
3
2
4
3
2
A
D
C
5
B
C
C
AVentilation air
BFlue gas
CInspection port
DConnection piece
System size Ø mm
1Boiler flue connection (part of the
standard boiler delivery)
60 80 100
2Standard shaft pack (PPs, rigid)
Comprising:
– Support bend
– Support rail
– Shaft cover
– Spacers (5 pce, max. clearance
5 m)
or
60 80 100
Standard shaft pack (metal/PPs, rig-
id)
For twin flue chimneys; one flue for
solid fuel boilers
Comprising:
– Support bend
– Support rail
– Shaft cover (metal)
– End pipe (stainless steel)
– Spacers (5 pce, max. clearance
5 m)
60 80 100
Spacers (3 pce, max. distance 5 m) 60 80 100
3Flue pipe
1.95 m long
(2 pce @ 1.95 m = 3.9 m)
60 80 100
1.95 m long (1 pce) 60 80 100
1 m long (1 pce) 60 80 100
0.5 m long (1 pce) 60 80 100
Flue bend (for use in corbelled
shafts)
30 ° (2 pce)
15 ° (2 pce)
60 80 100
4Inspection piece, straight (1 pce) 60 80 100
5Balanced flue inspection piece,
straight
(1 pce)
60 80 100
6Balanced flue wall bezel 60 80 100
7Balanced flue pipe
1 m long
0.5 m long
60 80 100
8Balanced flue bend
87° (1 pce)
45° (2 pce)
or
60 80 100
Balanced flue inspection tee
87° (1 pce)
— — 100
Balanced flue inspection bend
87° (1 pce)
60 80 —
9Balanced flue slide coupling 60 80 100
Fixing clamp, white
(1 pce)
60 80 100
Stainless steel extension, 380 mm
long for shaft cover, standard shaft
pack (metal/PPs, rigid)
60 80 100
Balanced flue adaptor
– Ø 80/125 mm to Ø 60/100 mm 60 80 —
– Ø 60/100 mm to Ø 80/125 mm 60 80 —
– Ø 80/125 mm to Ø 100/150 mm — 80 100
Max. total length of the flue up to the boiler flue connection
Vitodens 200-W, 222-F, 222-W and 242-F
Rated heating output range kW 3.2–13 3.2–19 5.2–26 5.2–35
Max. length - system size 60 m 20 20 20 15
Max. length - system size 80 m 25*1 25*1 25*1 25*1
*1 Alternative system size. Balanced flue adaptor must be ordered separately.
Design and sizing information for connection on the flue gas side (cont.)
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Vitodens 200-W, from 45 kW
Rated heating output range kW 17–45 17–60 30–80 30–100 32–125 32–150
Max. length - system size 80 m 20 15 — — — —
Max. length - system size 100 m 25*1 20*1 20 20 8 5
Vitodens 300-W, 333-F and 343-F
Rated heating output range kW 1.9–11 1.9–19 4.0–26 4.0–35
Max. length - system size 60 m 15 15 15 8
Max. length - system size 80 m 17*1 17*1 20*1 15*1
The following components are taken into consideration for the maxi-
mum flue lengths:
■Balanced flue connection pipe D 0.5 m long.
■ 1 balanced flue bend 87° and 1 support bend 87°
or
■ 2 balanced flue bends 45° and 1 support bend 87°
Subtract additional bends, tees and straight lengths from the maximum
length using the following values:
■ Balanced flue connection pipe 0.5 m long: 1 m
■ Balanced flue connection pipe 1 m long: 2 m
■ Balanced flue bends 45°: 0.5 m
■ Balanced flue bends 87°: 1 m
■ Balanced flue inspection tee: 1.5 m
Note
Observe the specifications regarding internal shaft dimensions (see
page 12).
For information on routing type C6, see page 4.
Vitodens in conjunction with solid fuel boilers
Routing a plastic flue adjacent to a shaft at risk of chimney fire from
soot (e.g. two draught chimney with wood burning stove) is generally
permitted. Depending on the design of the chimney top and the oper-
ation of the condensing systems (open or balanced flue) different
measures are specified by the fire regulations. Design the room sealed
balanced flue terminals so that flue gas will not be drawn into the air
shaft in dangerous amounts. Also ensure that pressure fluctuations
due to wind influence affect the room sealed balanced flue shaft as
evenly as possible.
For the required steps, see the following sections:
Open flue operation and/or ventilation air not being supplied
through the shaft
For fire safety reasons, the upper portion of combustible flue pipe ter-
minals should be made from non-combustible materials. The length of
flue pipe made from non-combustible materials, situated in area Lg
and protected from thermal radiation, must be at least 300 mm. The
length of the external end pipe of the shaft cover must be no less than
external diameter D of the internal flue pipe.
The standard shaft pack (metal/PPs) contains a stainless steel pipe
(380 mm long). A stainless steel extension (380 mm long) is available
as an additional accessory.
F
C
A
B
E D
300
D
Lg
Ø D
AShaft cover, metal
BEnd piece made from non-combustible material
CSecondary ventilation
DVitodens flue
EChimney used for solid fuel boiler
FMinimum clearance to DIN V 18160, reduced minimum clearance
or maximum clearance to EN 14471 (see page 12)
Balanced flue operation – Ventilation air is supplied through the
shaft
Design the room sealed balanced flue terminals so that flue gas will
not be drawn into the air shaft in dangerous amounts. Also ensure that
pressure fluctuations due to wind influence affect the room sealed bal-
anced flue system as evenly as possible.
*1 Alternative system size. Balanced flue adaptor must be ordered separately.
Design and sizing information for connection on the flue gas side (cont.)
VITODENS AND VITOSOLAR VIESMANN 15
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■ When using a plastic shaft cover:
The chimney for the solid fuel boiler must stand at least 1000 mm
proud of the Vitodens flue. For the chimney extension, only use
components that are resistant to soot fires.
EF D
C
B
A
≥ 1000
AChimney extension made from soot fire resistant material
BShaft cover, plastic
CVentilation air/secondary ventilation
DVitodens flue
EChimney used for solid fuel boiler
FMinimum clearance to DIN V 18160, reduced minimum clear-
ance or maximum clearance to EN 14471 (see page 12)
■ When using a metal shaft cover:
The chimney for the solid fuel boiler must stand at least 2 x Ø D proud
of the Vitodens flue. For the chimney extension, only use compo-
nents that are resistant to soot fires.
EF D
C
B
A
Ø D
≥ 2 x D
AChimney extension made from soot fire resistant material
BShaft cover, metal
CVentilation air/secondary ventilation
DVitodens flue (rigid or flexible)
EChimney used for solid fuel boiler
FMinimum clearance to DIN V 18160, reduced minimum clear-
ance or maximum clearance to EN 14471 (see page 12)
■ When using a common downdraught plate:
The flue end piece and the shaft cover must be made from non-
combustible material (e.g. metal).
≥ 2 x D
G
D
C
AB
F E
Ø D
AChimney extension made from soot fire resistant material
BEnd piece made from non-combustible material
CShaft cover (on-site)
DVentilation air/secondary ventilation
EVitodens flue
FChimney used for solid fuel boiler
GMinimum clearance to DIN V 18160, reduced minimum clear-
ance or maximum clearance to EN 14471 (see page 12)
The metal end piece and shaft cover are part of the standard shaft
pack (metal/PPs).
The standard shaft pack (metal/PPs) is available as an accessory.
Design and sizing information for connection on the flue gas side (cont.)
16 VIESMANN VITODENS AND VITOSOLAR
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5414 641 GB

Flue, flexible, system size 60, 80 and 100 (components) (type C93x according to TRGI 2008)
2
2
A
2
4
2
5
2
C
C
3
D
C
B
A
78qP91 6
AVentilation air
BFlue gas
CInspection port
DConnection piece
Note
The flexible flue pipe should be routed at a max. angle of 45° from
the vertical.
System size Ø mm
1Boiler flue connection (part of the
standard boiler delivery)
60 80 100
2Standard shaft pack (PPs, flexible)
Comprising:
– Support bend
– Support rail
– Shaft cover
– Spacers (5 pce, max. clearance
2 m)
60 80 100
Standard shaft pack (metal/PPs,
flexible) for twin flue chimneys; one
flue for solid fuel boilers
Comprising:
– Support bend
– Support rail
– Shaft cover (metal)
– End pipe (stainless steel)
– Spacers (5 pce, max. clearance
2 m)
60 80 100
Spacers (5 pce, max. distance 2 m) 60 80 100
3Flue pipe, flexible, as a 12.5 or
25 m roll
60 80 100
4Connection piece for connecting re-
sidual lengths of the flexible flue pipe
60 80 100
5Inspection piece, straight, for instal-
lation into the flexible flue pipe
60 80 100
Pipe lowering attachment with
25 m rope
60 80 100
6Balanced flue inspection piece,
straight
(1 pce)
60 80 100
7Balanced flue wall bezel 60 80 100
8Balanced flue pipe
1 m long
0.5 m long
60 80 100
9Balanced flue bend
87° (1 pce)
45 ° (2 pce)
or
60 80 100
Balanced flue inspection tee
87° (1 pce)
— — 100
Balanced flue inspection bend
87° (1 pce)
60 80 —
qP Balanced flue slide coupling 60 80 100
Fixing clamp, white
(1 pce)
60 80 100
Stainless steel extension, 380 mm
long, for shaft cover, standard shaft
pack (metal/PPs, flexible)
60 80 100
Balanced flue adaptor
– Ø 80/125 mm to Ø 60/100 mm 60 80 —
– Ø 60/100 mm to Ø 80/125 mm 60 80 —
– Ø 80/125 mm to Ø 70/110 mm — 80 —
– Ø 80/125 mm to Ø 100/150 mm — 80 100
Max. total flue length up to the boiler flue connection with flexible flue pipe
Vitodens 200-W, 222-F, 222-W and 242-F
Rated heating output range kW 3.2–13 3.2–19 5.2–26 5.2–35
Max. length - system size 60 m 18 18 — —
Max. length - system size 80 m 25*1 25*1 25*1 25*1
*1 Alternative system size. Balanced flue adaptor must be ordered separately.
Design and sizing information for connection on the flue gas side (cont.)
VITODENS AND VITOSOLAR VIESMANN 17
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Vitodens 200-W, from 45 kW
Rated heating output range kW 17–45 17–60 30–80 30–100 32–125 32–150
Max. length - system size 80 m 20 15 — — — —
Max. length - system size 100 m 22*1 17*1 20 20 8 5
Vitodens 300-W, 333-F and 343-F
Rated heating output range kW 1.9–11 1.9–19 4.0–26 4.0–35
Max. length - system size 60 m 14 14 — —
Max. length - system size 80 m 16*1 16*1 18*1 13*1
The following components are taken into consideration for the maxi-
mum flue lengths:
■Balanced flue connection pipe D 0.5 m long.
■ 1 balanced flue bend 87° and 1 support bend 87°
or
■ 2 balanced flue bends 45° and 1 support bend 87°
Subtract additional bends, tees and straight lengths from the maximum
length using the following values:
■ Balanced flue connection pipe 0.5 m long: 1 m
■ Balanced flue connection pipe 1 m long: 2 m
■ Balanced flue bends 45°: 0.5 m
■ Balanced flue bends 87°: 1 m
■ Balanced flue inspection tee: 1.5 m
Note
Observe the specifications regarding internal shaft dimensions (see
page 12).
For information on routing type C6, see page 4.
2.3 Plastic (PPs) balanced flue system for vertical routing through a pitched or flat roof
(type C33x, to TRGI 2008)
For vertical roof outlets when the Vitodens is installed in attics
The roof outlet may only be used where the ceiling of the living space
also forms part of the roof or only the roof structure is located above
the ceiling (pitched attic).
Note
Install condensing boilers with a heating output > 50 kW in a separate
and ventilated installation room (according to FeuVo [Germany])
(Vitodens 200-W from 60 kW).
Flues made from combustible materials and installed in buildings must
either be routed through shafts or be equipped with protective pipes
made from non-combustible materials or a comparable protective
cover made from non-combustible materials.
The flue may also be routed behind a jamb wall or a solid wall of a
converted attic, provided the fire protection class of the jamb wall cor-
responds to that of the ceiling (e.g. B30).
Minimum clearances to combustible materials inside the installation
room or in connection with the roof outlet are not required.
As part of the CE approval test it was verified that no surface temper-
atures on the Vitodens or its balanced flue system will exceed 85 °C.
Install an inspection port for checking and cleaning the flue pipe inside
the installation room.
The vertical roof outlet has been tested and CE-designated as a con-
centric balanced flue system as a single structural unit with the
Vitodens condensing boiler.
A performance 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 58). Push the roof outlet into the roof from
above and position it on the flat roof collar.
Note
The following minimum measurements apply to the diameter of the
ceiling aperture:
■ System size Ø 60 mm: 105 mm
■ System size Ø 80 mm: 130 mm
■ System size Ø 100 mm: 160 mm
Ensure the installation has been completed before securing the roof
outlet on site with a clamp.
When installing several vertical roof outlets adjacent to each other,
maintain minimum clearances of 1.5 m between outlets and towards
other components, in accordance with FeuVo [Germany] [or local reg-
ulations].
Note
Separate above-roof extensions are available if the length of
400 mm above the roof line and vertical to the roof surface is insuffi-
cient due to specific requirements (see following table).
Approval with the flue system is ensured.
*1 Alternative system size. Balanced flue adaptor must be ordered separately.
Design and sizing information for connection on the flue gas side (cont.)
18 VIESMANN VITODENS AND VITOSOLAR
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C
C
C
1
4
5
2
3
1
3
4
5
2
66
B
A
2
B
A
2
4
a
a
b b
AVentilation air
BFlue gas
CInspection port
System size Ø mm
1Boiler flue connection (part of the
standard boiler delivery)
60 80 100
2Balanced flue roof outlet with fixing
clamp
Colour: black
or
Colour: terracotta
60 80 100
Above roof extension with clamp
(brace on site)
Colour: black
0.5 m long 60 80 100
1 m long, with bracing clamp 60 80 —
Colour: terracotta
0.5 m long 60 80 100
1 m long, with bracing clamp 60 80 —
3Universal roof tile
– For Roman tiles, pantiles, plain tiles,
slate and other types of roof cover
– Colour: black or terracotta
or
60 80 100
Flat roof collar
or
60 80 100
Pipe outlet for Klöber roof tiles
Colour: black or terracotta (provide
the corresponding Klöber roof tile on
site to match the roof outlet selected
for the particular type of roof cover)
60 80 —
4Balanced flue inspection piece,
straight
(1 pce)
60 80 100
5Balanced flue slide coupling 60 80 100
6Universal cover plate 60 80 100
Balanced flue bend
87° (1 pce)
45 ° (2 pce)
60 80 100
Balanced flue pipe
1 m long
0.5 m long
60 80 100
Fixing clamp, white
(1 pce)
60 80 100
Balanced flue adaptor
– Ø 80/125 mm to Ø 60/100 mm 60 80 —
– Ø 60/100 mm to Ø 80/125 mm 60 80 —
– Ø 80/125 mm to Ø 100/150 mm — 80 100
Max. total length of the flue pipe
Vitodens 200-W, 222-F, 222-W and 242-F
Rated heating output range kW 3.2–13 3.2–19 5.2–26 5.2–35
a Max. length - system size 60 m 10 10 10 10
a Max. length - system size 80 m 13*1 13*1 13*1 11*1
b Min. mm 400 400 400 400
Vitodens 200-W, from 45 kW
Rated heating output range kW 17–45 17–60 30–80 30–100 32–125 32–150
a Max. length - system size 80 m 10 6 — — — —
a Max. length - system size 100 m 13*1 9*1 15 15 8 5
b Min. mm 400 1000 1000 1000 1000 1000
Vitodens 300-W, 333-F and 343-F
Rated heating output range kW 1.9–11.0 1.9–19.0 4.0–26.0 4.0–35.0
a Max. length - system size 60 m 10 10 10 10
a Max. length - system size 80 m 13*1 13*1 13*1 11*1
b Min. mm 400 400 400 400
2 x 87° balanced flue bends are taken into consideration for the max-
imum flue lengths.
*1 Alternative system size. Balanced flue adaptor must be ordered separately.
Design and sizing information for connection on the flue gas side (cont.)
VITODENS AND VITOSOLAR VIESMANN 19
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Subtract additional bends, tees and straight lengths from the maximum
length using the following values:
■ Balanced flue bends 45°: 0.5 m
■ Balanced flue bends 87°: 1 m
■ Balanced flue inspection tee: 1.5 m
2.4 Plastic (PPs) balanced flue system for external wall connection (type C13x to TRGI 2008)
As part of the CE approval test it was verified that no surface temper-
atures on the Vitodens or its balanced flue system will exceed 85 °C.
Observe the implementation information to TRGI 2008, in partic-
ular the arrangement/position of the wall terminal.
Install the connecting pipe with a minimum fall of 3° towards the
boiler.
Install an inspection port in the flue for checking and cleaning the flue
pipe.
The external wall connection has been tested and CE-designated as
a concentric balanced flue system as one structural unit with the
Vitodens condensing boiler.
A performance verification according to EN 13384 is not required.
541 6 3 32
B
A7
a
C
AVentilation air
BFlue gas
CInspection port
System size Ø
mm
1Boiler flue connection (part of the stand-
ard boiler delivery)
60 80
2Balanced flue external wall connection
(incl. wall bezels)
60 80
3Balanced flue pipe
1 m long
0.5 m long
60 80
4Balanced flue bend
87° (1 pce)
45 ° (2 pce)
or
60 80
Balanced flue inspection bend, 87° (1
pce)
60 80
5Balanced flue inspection piece, straight
(1 pce)
60 80
6Balanced flue slide coupling 60 80
7Grille
Required if the combustion air inlet and flue
outlet are positioned up to 2 m above
ground level in public or private thorough-
fares
60 80
Fixing clamp, white (1 pce) 60 80
Balanced flue adaptor
– Ø 80/125 mm to Ø 60/100 mm 60 80
– Ø 60/100 mm to Ø 80/125 mm 60 80
Max. total length of the flue pipe
Vitodens 200-W, 222-F, 222-W and 242-F
Rated heating output range kW 3.2–13 3.2–19 5.2–26 5.2–35 17–45 17–60 30–80 30–100
a Max. length - system size 60 m 10 10 10 8 — — — —
a Max. length - system size 80 m 13*1 13*1 13*1 11*1 10 10 — —
a Max. length - system size 100 m — — — — 13*1 13*1 13 13
Vitodens 300-W, 333-F and 343-F
Rated heating output range kW 1.9–11 1.9–19 4.0–26 4.0–35
a Max. length - system size 60 m 10 10 10 8
a Max. length - system size 80 m 13*1 13*1 13*1 11*1
2 x 87° balanced flue bends are taken into consideration for the max-
imum flue lengths.
Subtract additional bends, tees and straight lengths from the maximum
length using the following values:
■ Balanced flue bends 45°: 0.5 m
■ Balanced flue bends 87°: 1 m
■ Balanced flue inspection tee: 1.5 m
*1 Alternative system size. Balanced flue adaptor must be ordered separately.
Design and sizing information for connection on the flue gas side (cont.)
20 VIESMANN VITODENS AND VITOSOLAR
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5414 641 GB