________________________________________________________________________________
89
AST 14 C 255/00
7.2 80/80 SPLIT AIR/VENT DUCTS
or
C12
Type C12 - C32 - C42 – C52 – C82
24 kW flue gas vent diaphragms:
Pipe length [m]
Diaphragm diameter
flue gas vent [mm]
1
≤
L < 3
39.8
3
≤
L < 14
42
14
≤
L < 26
45
26
≤
L < 34
49
34
≤
L < 42
-
supplied to
28 kW flue gas vent diaphragms:
Pipe length [m]
Diaphragm diameter
flue gas vent [mm]
1
≤
L
≤
18
45
18 < L
≤
23
47
For
32 kW flue gas vent diaphragms:
Pipe length [m]
Diaphragm diameter
flue gas vent [mm]
1
≤
L
≤
5
44
5 < L
≤
12
45
12 < L
≤
19
47
19 < L
≤
24
49
For
WARNING: in the 28 and 32 kW version the 55.5 mm diaphragm (supplied along with the
boiler) must always be fitted on the intake
