16
Installation info
fig. 10
2 Ø min.
Slope
min. 3%
Ø
1,5 m min.
2 Ø
1 m max.
1,5 m min.
2 Ø
Ø
Slope
min. 3%
1 m max.
2 Ø min.
> 3 Ø
> 3 Ø
fig. 11
210
Ø 130
180
Direct emission into the atmosphere
Natural draught boilers can discharge
combustion products directly into the atmo-
sphere using a duct, which goes through the
outside walls of the building, connected to a
flue exhaust terminal.
The exhaust duct must also comply with the
following requirements:
-
the sub-horizontal part inside the building
must be as short as possible (no more than
1 m);
-
for boilers with vertical discharge, such as
boilers
EVE 05 TN 24
, there must be no
more than 2 direction changes;
-
it must receive the discharge from a single
boiler;
-
the part going through the wall must be
protected by a sheath duct; the part of the
sheath duct facing the inside of the build-
ing must be sealed and the part facing
outwards must be open;
-
the final section, on which the draught ter-
minal will be fixed, must protrude from the
wall of the building for a length of at least
twice the diameter of the duct;
-
the draught terminal must overlap the con-
nection to the boiler by at least 1.5 m (see
fig. 8).
DIMENSIONS FOR CONNECTING FLUE GAS DUCT
WARNING:
The boiler is fitted with an automatic safety
reset device as protection against spillage of
combustion products inside the building.
In case of the device operation, the boiler will
remain in lock-out position indicating the ano-
maly on the display with the symbol “
M
” (fig.
35) (failure code
AF
)
After the cooling down of the smoke
thermostat it will be possible to restart the
boiler by pressing the reset button
L
fig. 35.
It is absolutely forbidden to
by-pass the smoke
thermostat.
If the boiler cuts off regularly, it
is necessary to ask a technician for a check
of the flue gas exhaust duct. This duct may
be obstructed or may be unsuitable for the
discharge of flue gas into the atmosphere.
UNICAL
refuses all liability for
damage caused as a result of in-
correct installation, use, modifica-
tion of the boilers or for non-observance of
the instructions provided by the manufacturer
or applicable installation regulations
