83X To Cen/Tr 1749); Separate Ventilation Air And Flue Gas Routing (Type C 83 To Cen/Tr 1749) - Viessmann Vitodens 100-W Technical Manual

Design and sizing information for connection on the flue gas side
Vitodens 200-W, from 49 kW
Rated heating output range
a Max. length – system size 80/125
a Max. length – system size 110/150
Vitodens 300-W, 333-F, 343-F and Vitosolar 300-F with Vitodens 300-W
Rated heating output range
a Max. length – system size 60/100
a
Max. length – system size 80/125
2 x 87° balanced flue bends are taken into consideration for the
maximum flue lengths.
2
2.6 Plastic (PP) balanced flue system for separate ventilation air and flue gas routing
(type C to CEN/TR 1749)
83x
The Vitodens may be operated in room sealed mode and with sepa-
rately routed flue gas and ventilation air, subject to the flue system
meeting the following conditions:
■ Connection to a chimney that is unsuitable for providing the com-
bustion air supply because of deposits.
■ Connection to a moisture-resistant chimney.
The combustion air is then supplied through a separate ventilation
air pipe that is routed separately from the flue gas.
Observe the design information according to CEN/TR 1749.
Internal diameter of flue pipe: Ø 60 or 80 mm
Internal diameter of external pipe: Ø 100 or 125 mm
Internal diameter of ventilation air pipe: Ø 100 mm
Max. pipe length:
■ Connection piece: 3 m
■ Ventilation air pipe: 4 m
*1 Alternative system size. Balanced flue adaptor must be ordered separately.
*2 Alternative system size. Balanced flue adaptor must be ordered separately.
VIESMANN
22
kW 49
m 10
m *1*2
13
kW
m
*1*2 m
If fitting other bends, tees or straight lengths, subtract the following
values from the maximum length:
■ Balanced flue bends 45°: 0.5 m
■ Balanced flue bends 87°: 1 m
■ Balanced flue inspection tee: 1.5 m
Max. number of bends (flue pipe and ventilation air pipe):
■ 87°: 2 pce each
■ 45°: 3 pce each
Install an inspection port in the flue for checking and cleaning the
flue pipe. Safeguard the unrestricted draining of the condensate from
the flue into the boiler through an appropriate fall of at least 3°.
As part of the CE approval test it was verified that surface tempera-
tures on the Vitodens and its balanced flue system do not exceed
85 °C at any point.
The flue system for separate ventilation air and flue gas routing has
been certified as a system with the Vitodens condensing boiler.
A performance verification to EN 13384 for the ventilation air side
and the connection pieces is not required.
60 80
6 —
*1*2 15
9
11 19
10 10
13 13
or
(cont.)
99 120 150
— —
15 8
26
10
13
VITODENS, VITOSOLAR
—
5
35
8
11