For two-boiler systems up to 1240 kW with the Vitocrossal 200, type CM2, 400 to 620 kW
Connection to the flue system, optional outlet on the l.h. or r.h. side.
H
F
K
C
B
A
G
D
E
D
3°
b
1540
250
500
430
180
250
740
Ø 250
Ø a
500
430
250
c
C
B
A
Example:
outlet on the r.h. side
A
Boiler flue connection with test ports and inspection port
B
Motorised flue gas damper
C
Sliding element, 250 mm
D
Tee connector
E
Sliding element, 500 mm
F
Straight length, 500 mm
G
Inspection cover
H
Flue pipe with condensate drain
K
Flue system
Dimensions
Nominal diameter
mm
300
350
400
a
7
mm
300
350
400
b
mm
1550
b max.
mm
1680
c
mm
703
Selection table for the max. draught 70 Pa
Rated heating output
(kW)
Diameter of the effective vertical flue pipe
up to 30 metres (in mm)
2x400
7
300
2x500
7
350
2x620
7
400
Use a flue pipe with the same diameter as that of the flue gas
header.
Design information
(cont.)
46
VIESMANN
Gas condensing boilers
8
5822 449 GB