To Trgi 2008) - Viessmann Vitodens series Technician Manual

Design and sizing information for connection on the flue gas side
Max. total length of the flue pipe
Vitodens 200-W, 222-F, 222-W, 242-F and Vitosolar 200-F
Rated output range
max. length - system size 60
max. length - system size 80
max. length - system size 100
Vitodens 300-W, 333-F and 343-F
Rated output range
max. length - system size 60
max. length - system size 80
2
The following components are taken into consideration for the maxi-
mum flue lengths:
■ Connection pipe D 0.5 m long.
■ 2 x 87º bends
or
■ 3 x 45º bends
Subtract other bends, tees and straight lengths from the maximum
length using the following values:
■ Connection pipe 0.5 m long: 0.5 m
■ Connection pipe 1 m long: 1 m
Special version: open flue operation with combustion air interconnection for the Vitodens up to 35 kW (type
B

to TRGI 2008)

33
The Vitodens may also be installed in occupied rooms and be operated
in open flue mode, subject to the following conditions being met:
■ The shaft connection piece is constructed as balanced flue pipe, and
the combustion air is drawn directly from the room via an aperture
at the chimney inlet (interconnected flue air inlet adaptor, see
page 45).
■ As specified by the TRGI 2008, an adequate combustion air supply
must be ensured inside the room through combustion air intercon-
nection:
– Minimum volume of the interconnected rooms, 4 m
output
– Vents in connecting doors min. 150 cm
*1 Alternative system size: order balanced flue adaptor separately.
VIESMANN
32
kW 4.8–19.0 6.5–26.0
m 18 —
m *1 *1
25 25
m — —
kW
m
m
■ Bend 45º: 0.3 m
■ Bend 87º: 0.5 m
■ Inspection tee: 0.3 m
Note
Observe the specifications regarding internal shaft dimensions (see
page 29).
When routing through shafts, the same conditions apply as for the
routing of flue systems through a shaft, see page 29.
Calculation of the max. total flue length, see page 30.
3
per kW rated
2
(cont.)
8.8–35.0 13.0–45.0 17.0–60.0
— — —
*1 20 15
25
— *1 *1
22 17
3.8–13.0 3.8–19.0
14 14
*1 *1
16 16
30.0–80.0 30.0–105.0
— —
— —
20 20
5.2–26.0 7.0–35.0
— —
*1 *1
18 13
VITODENS