Viessmann Vitodens series User manual

VIESMANN VITODENS
Flue systems for gas condensing boilers
3.8 to 105.0 kW
VITODENS FLUE SYSTEMS
5414 641 GB 5/2011
Technical guide

Index
1. Flue systems 1.1 ....................................................................................................................................... 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 the PPs flue systems (rigid and flexible) for the Vitodens .............. 6
1.7 Flue installation options for balanced flue operation ..................................................... 8
■ Inside the living space (occupied areas) with one or more full floors above ............. 8
■Inside the living space (occupied area) immediately underneath the roof or with only
attics above (rated output ≤ 50 kW) .......................................................................... 9
■Several Vitodens in the living space or in occupied rooms (living space - rated output
≤ 50 kW) ................................................................................................................... 9
1.8 Flue installation options for open flue operation ........................................................... 9
■Inside the installation location (non-living space) with one or more full floors above
(compulsory for the Vitodens 200-W from 60 kW) .................................................... 10
■ Special version: open flue operation and installed in the living space (occupied area)
with combustion air interconnection (rated output ≤ 35 kW) ..................................... 10
■ 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
2.1 Plastic (PPs) balanced flue system for routing through a shaft – balanced flue operation
(type C63x to TRGI 2008) .............................................................................................. 11
■ Internal shaft dimensions to DIN V 18160 ................................................................ 12
■ Flue, system size 60, 80 and 100 (components) (type C63x according to TRGI 2008) 13
■ Vitodens in conjunction with solid fuel boilers ........................................................... 14
■ Flue, flexible, system size 60, 80 and 100 (components) (type C63x according to TRGI
2008) ......................................................................................................................... 16
2.2 Plastic (PPs) balanced flue system for vertical routing through a pitched or flat roof
(type C33x to TRGI 2008) .............................................................................................. 17
■ For vertical roof outlets when the Vitodens is installed in attics ................................ 17
■ Vertical flat roof outlet ............................................................................................... 17
2.3 Plastic (PPs) balanced flue system for external wall connection (type C13x to TRGI
2008) ............................................................................................................................. 19
■ Max. total length of the flue pipe ............................................................................... 19
2.4 Plastic (PPs) balanced flue system for routing over external walls (type C53x to TRGI
2008) ............................................................................................................................. 20
2.5 Plastic (PPs) balanced flue system for routing through a lightweight shaft .................. 21
■ "UNIFIX" shaft profiles offered by Skoberne (made from aerated concrete) ............ 22
■ "SKOBIFIXnano" and "SKOBIFIXXs 30" shaft profiles offered by Skoberne (made
from foamed ceramics) ............................................................................................. 22
■ Anchoring for roof outlets with shaft profiles ............................................................. 22
■ Promat shaft profiles ................................................................................................. 23
■ Roof outlet for shafts with Promat profiles ................................................................ 24
2.6 Plastic (PPs) balanced flue system for routing multiple pipes through a shaft ............. 24
■ Layout examples ....................................................................................................... 24
2.7 Plastic (PPs) balanced flue system (connection line) for connecting multiple flues to a
single room sealed balanced flue system ..................................................................... 25
■ Room sealed balanced flue system, negative pressure (type C43x to TRGI 2008) ... 26
■ Room sealed balanced flue system, positive pressure – multiple connections with
the Vitodens 200-W, 222-W and 222-F up to 26 kW (type C43x to TRGI 2008) ........ 26
2.8 Plastic (PPs) flue pipe for routing through a shaft with open flue operation (type B
according to TRGI 2008) .............................................................................................. 29
■ Internal shaft dimensions .......................................................................................... 29
■ Flue, system size 60, 80 and 100 (components) (type B23 /B33 according to TRGI
2008) ......................................................................................................................... 30
■ Flue, flexible, system size 60, 80 and 100 (components) (type B23 to TRGI 2008) .. 31
■ Special version: open flue operation with combustion air interconnection for the
Vitodens up to 35 kW (type B33 to TRGI 2008) ......................................................... 32
■ Connection to a moisture-resistant chimney (MR chimney negative pressure) with a
plastic (PPs) flue pipe (type B23x, according to TRGI 2008) ..................................... 33
■ Multi boiler systems with flue systems operating with positive pressure (open flue
operation) – Vitodens 200-W, 19 to 105 kW, Vitodens 222-W and 222-F ................ 34
■ Multi boiler systems with flue systems - negative pressure ...................................... 42
3. Flue system components 3.1 Balanced flue system components ............................................................................... 42
Index
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3.2 Components for routing a flue over an external wall .................................................... 46
3.3 Single pipe system components ................................................................................... 48
3.4 Components for multiple connections to a room sealed balanced flue system – positive
pressure for the Vitodens 200-W, 222-W and 222-F, 19 to 26 kW ............................... 54
3.5 Components of the flexible single pipe system for a flexible flue ................................. 55
3.6 Components for multi boiler systems ............................................................................ 56
3.7 Roof elements ............................................................................................................... 58
4. Keyword index .............................................................................................................................................. 59
Index (cont.)
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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 flue gas inspector responsible [where
applicable].
Gas combustion equipment must be connected to the domestic chim-
ney stack on the same floor where it is installed (no transition through
separating ceilings).
Here, differentiation is required as to whether the condensing boiler
should be sited in the living space (occupied rooms) or outside the
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 32).
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 function verification for flue pipes to DIN 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
In a non-living space, the flue may also be installed inside the instal-
lation room without secondary ventilation. However, the installation
room would then require an adequately sized vent to the outside (acc.
to TRGI 2008).
Rated output up to 50 kW:
150 cm2 or 2 × 75 cm2
Rated 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
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 to
DIN EN 14471.
System certification
System certification to DVGW-VP 113 and EC Gas Appliances Direc-
tive 2009/142/EC in conjunction with PPs flue pipes offered by Sko-
berne
Vitodens 200-W CE-0085BR0432
Vitodens 222-F CE-0085BU0051
Vitodens 222-W CE-0085BR0432
Vitodens 242-F CE-0085BU0051
Vitodens 300-W CE-0085BR0433
Vitodens 333-F CE-0085BU0052
Vitodens 343-F CE-0085BU0052
Vitosolar 200-F CE-0085CM0184
1.2 Balanced flue operation
The sealed combustion chamber of the Vitodens gas condensing boil-
ers enables their use in balanced flue operation. These boilers are
categorised as C13x, C33x, C43x, C53x, C63x or C83x according to TRGI
2008.
A common approval for the Vitodens and balanced flue system
applies to this type of equipment.
The tightness test (overpressure test) by the flue gas inspector during
commissioning as well as the verification of the "General Building
Regulations approval" by the DIBt may be omitted for this type of con-
struction.
Every 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 11 to 20. 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 extracted through the internal
plastic pipe (PPs).
For balanced flue systems tested together with the wall mounted gas
boiler, there is no requirement for a tightness test during commission-
ing by the flue gas inspector.
We recommend that your heating engineer carries out a simple tight-
ness test during the commissioning of your system. For this it would
be sufficient to check the CO2 concentration in the combustion air at
the annular gap of the balanced flue pipe. The flue is considered suf-
ficiently gas-tight if the CO2 concentration in the combustion air is no
higher than 0.2 %, or if 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 ºC. 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 also be used.
Use a condensate trap above the boiler flue connection if an aluminium
flue pipe is installed. Install the connecting lines with a fall of at least
3° to the boiler.
The balanced flue system is CE-designated and approved to DIN
EN 14471 (see page 6).
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.
Flue systems
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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 C63x).
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 in a balanced flue up to the chim-
ney or shaft. The flue pipe is routed inside the chimney or shaft to
above roof level.
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)
Flue gas is routed through single wall plastic pipes (PPs). The flue
system is CE-designated and approved to DIN 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.
1.4 Flue gas high limit safety cut-out
According to CE designation to DIN EN 14471, the plastic flue pipe
(PPs) can be utilised up to a maximum flue gas temperature of 120 ºC
(type B).
Measures inside the equipment ensure that the flue gas temperature
of 90 ºC will never be exceeded.
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 the 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 ventilation and extract air vents required)
Inside the living space (occupied areas) with one or more full floors above
AFlue gas
BVentilation air
Routing through a shaft (type C63x, to TRGI 2008)
The boiler draws combustion air from the atmosphere through the
annular gap inside the shaft (chimney) and expels the flue gas via the
flue pipe above roof level. For condensing boilers > 50 kW, the instal-
lation location must be ventilated even for balanced flue operation.
The shaft is not part of the standard delivery. For a detailed description,
see from page 11.
Retrofitted shafts
Installation in a retrofitted shaft with Building Regulation approval con-
sisting of individual shaft elements (e.g. as supplied by SIMO, Wie-
nerberger or Skoberne) or including mineral profiles (e.g. from Pro-
matect). For a detailed description of shafts, see page 21.
AFlue gas
BVentilation air
External wall connection
Only for buildings with protected rights
(Type C13x, to TRGI 2008)
(permissible up to a rated 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 mounted to the external wall and expels flue gas via the outside
wall to atmosphere. For a detailed description, see page 19.
Horizontal roof outlet
(Type C13x, to TRGI 2008)
(no limitation of the rated output)
The boiler draws combustion air from outside at the roof dormer via a
concentric coaxial pipe and expels flue gas at the dormer to atmos-
phere.
AFlue gas
BVentilation air
Routing over an external wall
(Type C53x, to TRGI 2008)
The boiler draws combustion air from the atmosphere via a horizontal,
concentric coaxial pipe on the external wall and expels flue gas to the
atmosphere via the roof.
In its vertical section, the outer pipe of the concentric coaxial pipe acts
as thermal insulation thanks to its static layer of air. The combustion
air is supplied via the balanced flue air inlet.
For a detailed description, see page 20.
Flue systems (cont.)
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Inside the living space (occupied area) immediately underneath the roof or with only attics above (rated
output ≤ 50 kW)
AFlue gas
BVentilation air
CPipe to protect against mechanical damage
Vertical outlet, if no shaft is available
(Type C33x, to TRGI 2008)
(various options)
1Direct, vertical roof outlet through a pitched roof
2Indirect, vertical roof outlet through a pitched roof with protective
pipe inside the attic space (not constructed as a room) or fire pro-
tection brickwork (constructed as a room)
3Direct, vertical roof outlet through a flat roof
The boiler draws combustion air from the atmosphere and expels flue
gas to the atmosphere via a concentric coaxial pipe through the roof.
For a detailed description, see page 17.
Several Vitodens in the living space or in occupied rooms (living space - rated 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 several 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 via the roof to atmosphere through a moisture-resistant inter-
nal pipe.
For a detailed description, see pages 25 and 26.
1.8 Flue installation options for open flue operation
(Separate ventilation air vent with 150 cm2 or 2 × 75 cm2 cross-section required)
Flue systems (cont.)
VITODENS VIESMANN 9
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Inside the installation location (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 via the roof (balanced flow).
For a detailed description, see page 29.
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 via the roof.
For a detailed description, see page 33.
Special version: open flue operation and installed in the living space (occupied area) with combustion air
interconnection (rated 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 vents 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 32.
Flue systems (cont.)
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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 vents and expel the flue gas through a common flue pipe via the
roof to the atmosphere.
For a detailed description, see page 34.
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 vents and expel the flue gas through a common flue pipe via the
roof to the atmosphere.
For a detailed description, see page 42.
Design and sizing information for connection on the flue gas side
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.
2.1 Plastic (PPs) balanced flue system for routing through a shaft – balanced flue opera-
tion (type C63x 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.
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 105 kW 100 150
The connection piece is fitted to the boiler flue connection and must
provide an inspection port.
Note
Gas condensing boilers with a total rated output greater than 50 kW
may only be installed in rooms that provide air vents leading outside,
see page 29.
For installation through shafts or channels with longitudinal ventilation
meeting the requirements for chimney stacks to DIN V 18160-1, or with
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 flue gas inspector should check that the shaft
to be used is suitable and approved for this purpose.
Flue systems (cont.)
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Shafts that were previously connected to oil or solid fuel boilers must
be thoroughly cleaned by a chimney sweep. Loose deposits compris-
ing 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 test apertures that are provided
with chimney cleaning covers and to which an appropriate test mark
has been affixed.
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 the installation of a flexible flue
pipe (see page 16).
Inside the installation location, at least one inspection port must be
provided in the flue system for checking and cleaning as well as for
checking the pressure (if required). If the flue pipe is inaccessible 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 pipe to the boiler with a fall of at least 3º.
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. because of greater flue
lengths. The function 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 single technical unit) are used, the flue
system must be checked for tightness by the flue gas inspector prior
to commissioning.
This may be carried out, in accordance with the flue system approval
certificate, by measuring the CO2 or O2 value inside the annular gap.
If this test results in a CO2 content of more than 0.2 % or an O2 content
below 20.6 %, check the flue system.
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 function verification to DIN EN
13384.
Minimum internal shaft dimensions
System size AExternal diameter;
female 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) 72 112 132
80 94 135 155
80 (flexible) 102 142 162
100 128 170 190
100 (flexible) 127 167 187
Reduced internal shaft dimensions
System size AExternal diameter;
female 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
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 C63x 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 set (PPs, rigid)
Comprising:
– Support bend
– Support rail
– Shaft cover
– Spacers (3 pce, max. distance 5 m)
or
60 80 100
Standard shaft pack (metal/PPs,
rigid)
for twin draught chimneys; one
draught for solid fuel boilers
Comprising:
– Support bend
– Support rail
– Shaft cover (metal)
– Terminal pipe (stainless steel)
– Spacers (3 pce, max. distance 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 chim-
neys)
30º (2 pce)
15º (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
87º (1 pce)
45º (2 pce)
or
60 80 100
Balanced flue inspection tee
87º (1 pce)
— — 100
Balanced flue inspection bend
87º (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, 242-F and Vitosolar 200-F
Rated output range kW 4.8–19.0 6.5–26.0 8.8–35.0 13.0–45.0 17.0–60.0 30.0–80.0 30.0–105.0
max. length - system size 60 m 20 20 15 — — — —
max. length - system size 80 m 25*1 25*1 25*1 20 15 — —
max. length - system size 100 m — — — 25*1 20*1 20 20
*1 Alternative system size: order balanced flue adaptor separately.
Design and sizing information for connection on the flue gas side (cont.)
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Vitodens 300-W, 333-F and 343-F
Rated output range kW 3.8–13.0 3.8–19.0 5.2–26.0 7.0–35.0
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 87º and 1 flue bend 87º
or
■ 2 balanced flue bends 45º and 1 flue bend 45º
Subtract other 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 45º: 0.5 m
■ Balanced flue bends 87º: 1 m
■ Balanced flue inspection tee: 0.5 m
Note
Observe the specifications regarding internal shaft dimensions (see
page 12).
Vitodens in conjunction with solid fuel boilers
Routing the flue pipe in a twin draught shaft.
The plastic flue pipe can be routed together with the flue pipe from a
solid fuel boiler inside a twin-flue chimney. The following conditions
are met:
Open flue operation or the ventilation air is not supplied through
the shaft
For fire safety reasons, the terminals of flammable flue pipes should
be made from non-combustible materials. For flues of standard flam-
mability, they should be located up to approx. 400 mm below the shaft
terminal, and for flues of low flammability, approx. 300 mm below the
shaft terminal.
F
C
A
B
E D
≥ 300/400
AMetal shaft cover
BEnd piece made from non-combustible material
CSecondary ventilation
DVitodens flue
EChimney for solid fuel boilers
FMinimum clearance to DIN V 18160, reduced minimum clearance
or maximum clearance to DIN EN 14471 (see page 12)
Balanced flue operation – the ventilation air is supplied through
the shaft
Design the balanced flue terminals so that flue gas will not be drawn
into the air shaft in dangerous volumes and so that pressure fluctua-
tions due to wind influence affect the balanced flue system as evenly
as possible.
■ When using a plastic shaft cover:
The chimney for solid fuel boilers must protrude at least 1000 mm
above the Vitodens flue. For the chimney extension, only use com-
ponents that are resistant to soot fires.
EF D
C
B
A
≥ 1000
AChimney extension made from soot-resistant and fire-resistant
material
BPlastic shaft cover
CVentilation/secondary ventilation
DVitodens flue
EChimney for solid fuel boilers
FMinimum clearance to DIN V 18160, reduced minimum clear-
ance or maximum clearance to DIN EN 14471 (see page 12)
■ When using a metal shaft cover:
The chimney for solid fuel boilers must protrude at least 2 x Ø D
above the Vitodens flue. For the chimney extension, only use com-
ponents that are resistant to soot fires.
*1 Alternative system size: order balanced flue adaptor separately.
Design and sizing information for connection on the flue gas side (cont.)
14 VIESMANN VITODENS
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5414 641 GB

EF D
C
B
A
Ø D
≥ 2 x D
AChimney extension made from soot-resistant and fire-resistant
material
BMetal shaft cover
CVentilation/secondary ventilation
DVitodens flue (rigid or flexible)
EChimney for solid fuel boilers
FMinimum clearance to DIN V 18160, reduced minimum clear-
ance or maximum clearance to DIN 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-resistant and fire-resistant
material
BEnd piece made from non-combustible material
CShaft cover (on-site)
DVentilation/secondary ventilation
EVitodens flue
FChimney for solid fuel boilers
GMinimum clearance to DIN V 18160, reduced minimum clear-
ance or maximum clearance to DIN EN 14471 (see page 12)
The metal terminal pipe 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.)
VITODENS VIESMANN 15
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Flue, flexible, system size 60, 80 and 100 (components) (type C63x 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 must only be routed vertically.
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. distance 2 m)
60 80 100
Standard shaft set (metal/PPs, flex-
ible) for twin flue chimneys; one for
solid fuel boilers
Comprising:
– Support bend
– Support rail
– Shaft cover (metal)
– Terminal pipe (stainless steel)
– Spacers (5 pce, max. distance 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
residual lengths of the flexible flue
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
87º (1 pce)
45º (2 pce)
or
60 80 100
Balanced flue inspection tee
87º (1 pce)
— — 100
Balanced flue inspection bend
87º (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, 242-F and Vitosolar 200-F
Rated output range kW 4.8–19.0 6.5–26.0 8.8–35.0 13.0–45.0 17.0–60.0 30.0–80.0 30.0–105.0
max. length - system size 60 m 18 — — — — — —
max. length - system size 80 m 25*1 25*1 25*1 20 15 — —
max. length - system size 100 m — — — 22*1 17*1 20 20
*1 Alternative system size: order balanced flue adaptor separately.
Design and sizing information for connection on the flue gas side (cont.)
16 VIESMANN VITODENS
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Vitodens 300-W, 333-F and 343-F
Rated output range kW 3.8–13.0 3.8–19.0 5.2–26.0 7.0–35.0
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 87º and 1 flue bend 87º
or
■ 2 balanced flue bends 45º and 1 flue bend 45º
Subtract other 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 45º: 0.5 m
■ Balanced flue bends 87º: 1 m
■ Balanced flue inspection tee: 0.5 m
Note
Observe the specifications regarding internal shaft dimensions (see
page 12).
2.2 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 occupied
room also forms part of the roof or only the roof structure is located
above the ceiling (pitched attic).
Note
Install condensing boilers with an output > 50 kW in a separate and
ventilated installation location (according to FeuVo [Germany])
(Vitodens 200-W from 60 kW).
When the balanced flue system is routed through roof spaces that are
not used as accommodation, run the balanced flue pipe through an
additional metal pipe as protection against mechanical damage (TRGI
2008).
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 corre-
sponds to that of the ceiling (e.g. B30).
Minimum clearances to combustible materials inside the installation
location 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 ºC.
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 105 kW 100 150
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 one structural 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 58). Push the roof outlet into the roof from
above and position it on the flat roof collar.
Note
The ceiling opening should have a diameter of at least the specified
size:
■ System size Ø 60 mm: 105 mm
■ System size Ø 80 mm: 130 mm
■ System size Ø 100 mm: 160 mm
Secure the roof outlet on site with a clamp 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.
Note
Separate extensions are available (see table) if the length of
400 mm above the roof line and vertical to the roof surface is insuffi-
cient because of specific requirements.
Approval with the flue system is ensured.
*1 Alternative system size: order balanced flue adaptor separately.
Design and sizing information for connection on the flue gas side (cont.)
VITODENS VIESMANN 17
5414 641 GB
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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 tile on site
to match the roof outlet selected for
the particular type of roof)
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
87º (1 pce)
45º (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, 242-F and Vitosolar 200-F
Rated output range kW 4.8–19.0 6.5–26.0 8.8–35.0 13.0–
45.0
17.0–
60.0
30.0–
80.0
30.0–
105.0
a max. length - system size 60 m 10 10 10 — — — —
a max. length - system size 80 m 13*1 13*1 11*1 10 6 — —
a max. length - system size 100 m — — — 13*1 9*1 15 15
b min. mm 400 400 400 400 1000 1000 1000
Vitodens 300-W, 333-F and 343-F
Rated output range kW 3.8–13.0 3.8–19.0 5.2–26.0 7.0–35.0
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 87º balanced flue bends are taken into consideration for the max-
imum flue lengths.
Subtract other bends, tees and straight lengths from the maximum
length using the following values:
■ Balanced flue bends 45º: 0.5 m
■ Balanced flue bends 87º: 1 m
■ Balanced flue inspection tee: 0.5 m
*1 Alternative system size: order balanced flue adaptor separately.
Design and sizing information for connection on the flue gas side (cont.)
18 VIESMANN VITODENS
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2.3 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 the balanced flue system will exceed
85 ºC.
Observe the implementation information to TRGI 2008, in partic-
ular the arrangement/position of the wall outlet.
Install the connection line with a fall of at least 3° towards the boiler.
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,
Vitodens 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 105 kW 100 150
Install an inspection port 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 function 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
87º (1 pce)
45º (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
7Protective grille
required, if the combustion air inlet and flue
outlet lie at a height of up to 2 m above
ground level in areas of public or private
traffic
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, 242-F and Vitosolar 200-F
Rated output range kW 4.8–19.0 6.5–26.0 8.8–35.0 13.0–
45.0
17.0–
60.0
30.0–
80.0
30.0–
105.0
a max. length - system size 60 m 10 10 8 — — — —
a max. length - system size 80 m 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 output range kW 3.8–13.0 3.8–19.0 5.2–26.0 7.0–35.0
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
2 x 87º balanced flue bends are taken into consideration for the max-
imum flue lengths.
Subtract other bends, tees and straight lengths from the maximum
length using the following values:
■ Balanced flue bends 45º: 0.5 m
■ Balanced flue bends 87º: 1 m
■ Balanced flue inspection tee: 0.5 m
*1 Alternative system size: order balanced flue adaptor separately.
Design and sizing information for connection on the flue gas side (cont.)
VITODENS VIESMANN 19
5414 641 GB
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2.4 Plastic (PPs) balanced flue system for routing over external walls (type C53x to TRGI
2008)
The Vitodens may also be connected, without a shaft, to a flue pipe
routed over an external wall.
The combustion air is drawn in via the air inlet piece. The vertical
external pipe acts as protection and the static air inside acts as thermal
insulation.
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,
Vitodens 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 105 kW 100 150
Where the flue is routed over an external wall, it has been tested and
CE-designated as a concentric balanced flue that forms a single struc-
tural unit with the Vitodens condensing boiler. A function verification
according to EN 13384 is not required.
≤ 2.0 m
≤ 2.5 m
AFlue gas
BVentilation air
CInspection port
DElbow in the flue routed over an external wall, see page 45
Design and sizing information for connection on the flue gas side (cont.)
20 VIESMANN VITODENS
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5414 641 GB