Ariston CLAS HE R 12 Installation And Servicing Instructions page 28

installation
TWIN-PIPE SYSTEM
S1 = Air intake S = Flue gas exhaust
S1 = S - Air intake and flue gas exhaust equal lengths
S1 + S - Air intake and flue gas exhaust unequal lengths
8
FLUE TYPE
C13
Flue gas exhaust and air
suction duct through
external wall in the same
range of pressure
C 33
Flue gas exhaust and air
suction duct from outside
with the roof terminal
in the same range of
pressure
C53
Flue gas exhaust leading
outside and air suction
duct through external
wall not in the same
range of pressure
MAX DIAMETER
LENGTH of PIPE
48 m
1
(S1=S)
4 m
18 80/80
(S1=S)
36 m
4
(S1=S)
80 m
1
(S1=S)
70 m
18 80/80
(S1=S)
60 m
4
(S1=S)
11 m
1
(S1+S)
98 m
18 80/80
(S1+S)
84 m
4
(S1+S)
Equivalent
length
45° 90°
0.5 m 1 m