Ariston GENUS HE 35 Plus Installation And Servicing Instrucnion page 28

Fig. 11.14
In the event that twin flue pipes are used, and the boiler
has a side clearance of less than 60mm from the wall, it
is necessary to cut a larger diameter hole for the flue
pipe, this should be ø100 mm, this will then allow for
easier assembly of the air intake elbow and the tube
outside the wall (see Fig. 11.14).
Concentric outlet
TABLE
A
Concentric outlet
TABLE
B
TABLE
Twin flue outlet
C
For coaxial systems, the maximum development value, mentioned in the table above also takes into account an elbow.
For twin flue systems the maximum development value, mentioned in the table includes the exhaust gas/air intake terminal.
Type 5 outlets should respect the following instructions:
1- Use the same ø 80 mm flue pipes for the gas intakes and exhaust gas ducts.
2- If you need to insert elbows in the gas intake and exhaust gas ducts, you should consider for each one the equivalent length
to be included in the calculation of developed length.
3- The exhaust gas duct should jut above the roof by at least 0.5 m.
4- The intake and exhaust gas ducts in Type 5 must be installed on the same wall, or where the exhaust is vertical and the air
intake horizontal, the terminals must be on the same side of the building.
28
123,5
60/100
35 kW
80/125
35 kW
35 kW
25
Min length
0.3 m
Min length
0.3 m
Operating zone in separate 35 kW ducts
ZONE DE FONCTIONNEMENT EN CONDUITS SEPARES 35 kW
100
90
80
70
60
50
40
ZONE DE
Operating zone
30
FONCTIONNEMENT
20
10
0
0 10 20 30
Longueur AIR mètre
60 mm
Max. length
equivalency for
4 m
elbow
elbow
Max. length
10 m
elbow
elbow
40 50 60 70 80
Air length in metres
Fig. 11.15
Length
45 o
0.5 m
90 o
1 m
45 o
0.5 m
90 o
1 m
200
180
160
140
120
100
80
60
40
20
0
90