Flue Gas System Connections - Depending On Country; Connections For The Air And Exhaust Pipes - Forced Flow (Forced Flue) - Type C - DeDietrich MODULENS O AFC 18 Installation And Service Manual

5. Installation
5.6

Flue gas system connections - Depending on country

Lmax
Lmax
C 13
(x)
1
50
5.6.1.
When it leaves the factory, the connection configuration of the boiler
is so-called "forced flow": air/flue gas connection type C
C
93(x)
n Classification
Lmax
Lmax
2
0 80/125
C 33
(x)
2
CAUTION
To obviate any transmission of boiler operating noise into
the home, the flue gas connection pipes must not be
bricked into the walls. Use a sleeve.
WARNING
Fix the concentric conduits to the wall using clamps and
brackets. The conduits come under stress at each start-
up and may eventually work free of their fitments. Should
this happen, the boiler continues to operate and pollutes
the air in the premises. This risk is even higher when the
length of the flue gas connection pipe to the wall or
chimney is significant. The horizontal flue gas pipes must
be installed with a minimum gradient of 1% to allow the
flow of the condensates that form in the pipes to the boiler
siphon.
Connections for the air and exhaust pipes -
Forced flow (forced flue) - Type C
.
Lmax
X
min.
C 33
(x)
X
min.
C 93
(x)
3
AFC 18 - AFC 24 - AFC 30
Lmax
Lmax
C 93 C 33
(x) (x)
3
2
C003175-H
09/07/2015 - 300026439-07
, C ,
13(x) 33(x)