9
4
COMBUSTION PRODUCT EVACUATION
4.1
ø80 dual duct system for combustion product evacuation and air intake (type C
53
)
For this type of boiler, combustion product evacuation and air intake take place through separate
Ø80 mm dual ducts, using the Ø80 dual duct outlet kit, code CGAS000265. Evolution Solar HFD
boilers are equipped with this type of fume removal by default.
The
maximum length
of piping that can be installed is 12 metres, which is the maximum sum of
the metres of the air intake duct and the metres of the combustion product evacuation duct. Each
90º elbow, or each two 45º elbows, will reduce the available length by 1 m. One horizontal metre is
the equivalent of 2 metres.
It is recommended to fit the exhaustion duct in a slightly upwardly-inclined direction, at around 2º -
3º, thus preventing any water and condensation from dripping out.
Dual-duct ou tlet K it
80/1 00 in ox
Cod. CGAS000 265
1m. du ct
80 in ox. Cod. CGAS000145
1m. duct
100 inox. Cod. CGAS000 268
1 m. duct
100 PP Co d. CGAS0 00355
90º elbow
80 in ox Cod. CGAS000147
90º elbow
100 ino x Cod. CGAS00026 7
90º elbow
100 PP Cod. CGAS000358
4 5º elbow
80 inox. Cod. CGAS00014 8
45º elbo w
10 0 in ox. Cod. CGAS000266
45º elbow
100 PP Cod. CGAS000357
NOTE: For th is co nfigu ration pipes and elbo ws
80 are for air in take.
Examples of installation:
C
12 mts. (EV HFD 30)
C
10 mts. (EV HFD 40)