Vitodens In Conjunction With Solid Fuel Boilers - Viessmann Vitodens 100-W Technical Manual

Design and sizing information for connection on the flue gas side
Vitodens 200-W, 222-F, 222-W and 242-F
Rated heating output range
Max. length – system size 60/100
Max. length – system size 80/125
Vitodens 200-W, from 49 kW
Rated heating output range
Max. length – system size 80/125
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
2
Max. length – system size 60/100
Max. length – system size 80/125
The following components are taken into consideration for the maxi-
mum flue lengths:
■ Balanced flue connection pipe D 1 m long.
■ 1 balanced flue bend 87° and 1 support bend 87°
or
■ 2 balanced flue bends 45° and 1 support bend 87°
If fitting other bends, tees or straight lengths, subtract the following
values from the maximum length:
■ Balanced flue connection pipe 0.5 m long: 1 m
■ Balanced flue connection pipe 1 m long: 2 m

Vitodens in conjunction with solid fuel boilers

Routing a plastic flue adjacent to a shaft at risk of chimney fire from
soot (e.g. 2-draught chimney with wood burning stove) is generally
permitted. Depending on the design of the chimney top and the
operation of the condensing systems (open flue or room sealed), fire
regulations specify different measures. Design the balanced flue ter-
minals so that flue gas will not be drawn into the air shaft in danger-
ous amounts and 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 the terminals of flamma-
ble flue pipes 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 terminal pipe of the shaft cover must
correspond, as a minimum, to 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 availa-
ble as an additional accessory.
*2 Alternative system size. Balanced flue adaptor must be ordered separately.
*1 Alternative system size. Balanced flue adaptor must be ordered separately.
VIESMANN
16
kW
m
*2 m
kW 49
m 20
m *1*2
25
kW
m
m
*1*2
19 26
20 20
25 25
60 80
15 —
*1*2 20
20
11 19
15 15
17 17
■ 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 13).
For information on routing type C6, see page 4.
Ø D
A
B
C
E D
F
A Metal shaft cover
B End piece made from non-combustible material
C Secondary ventilation
D Vitodens flue pipe
E Chimney for solid fuel boilers
F Minimum clearance to DIN V 18160, reduced minimum clear-
ance or maximum clearance to EN 14471 (see page 14)
Room sealed 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 that pressure fluctua-
tions due to wind influence affect the balanced flue system as evenly
as possible.
(cont.)
30
15
25
99 120 150
— —
20 8
26
15
20
VITODENS, VITOSOLAR
35
15
25
—
5
35
8
15