Open Flue Operation With The Vitocrossal 200 And Vitocrossal 300 - Viessmann VITOCROSSAL 200 Type CM2 Technical Manual

Design information

Open flue operation with the Vitocrossal 200 and Vitocrossal 300

A flue pipe between the gas condensing boiler and the shaft, as well
as for routing through the shaft (type B
required for open flue operation with the Vitocrossal 200 and 300.
For routing through shafts or ducts with longitudinal ventilation
that meet the requirements for domestic chimneys to DIN V
18160-1, or have a fire rating of 90 min (F90/L90).
A
5 8 7
D
B
4
1
6
2
A Secondary ventilation
B Flue gas
C Inspection port
D Ventilation air/ventilation air aperture
Minimum clearance for secondary ventilation between the inter-
nal cross-section of the shaft and the female connection
20 b 20
c
Gas condensing boilers
(cont.)
to TRGI 2008, point 2.3.2), is
23
B
3
4
5
4
3
4
3
3
C
30 b 30
d
System size flue pipe Ø 125, 150, 200 and 250 mm.
A boiler flue connection must be ordered for the connection to the
Vitocrossal.
For system size diameter 125, 150, 200 and 250 mm
1 Boiler flue connection
(order separately)
2 Extension
Required for system sizes 150, 200 and 250 mm
3 Basic shaft unit
comprising
– Support bend
– Support rail
– Shaft cover
– Spacers (5 pce)
Spacers (3 pce)
4 Pipe
– 2 m long (2 pce = 4 m long)
– 2 m long (1 pce)
– 1 m long (1 pce)
– 0.5 m long (1 pce)
5 Straight inspection piece
(1 pce)
6 Flue bend
87° (1 pce)
45° (2 pce)
7 Ventilation bezel
(1 pce)
Flue bend
(for use in corbelled chimneys)
30° (2 pce)
15° (2 pce)
8 Inspection bend
87° (1 pce)
Reducer
(corresponding to the system size)
System size External di-
mension
(Ø mm)
a b
100 128
125 145
150 184
200 227
250 273
Minimum internal shaft dimen-
sion D
(mm)
c d
rectangular round
mm Ø mm
170 x 170 190
185 x 185 205
224 x 224 244
267 x 267 287
313 x 313 333
VIESMANN
8
31