Unical DUA plus, Installation And User Instruction Manual

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12
Installation info
fig. 8
fig. 9
2 Ø min.
Pendenza
min. 3%
Ø
1,5 m min.
2 Ø
1 m max.
1,5 m min.
2 Ø
Ø
Pendenza
min. 3%
1 m max.
2 Ø min.
> 3 Ø
> 3 Ø
225
450
361
863
Ø 130
225
® plus
D UA
®
pl us
DU A
®
pl us
DU A ®
pl us
DU A
Ø
2 Ø
2,5 m max.
8-a 8-b 8-c
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 lo ck-out position indicating the
anomaly on the display.
After 15 minutes the boiler will be reset
automatically.
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
incorrect installation, use, modi-
fication of the boilers or for non-observance
of the instructions provided by the manu-
facturer or applicable installation regulations
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
terminal 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
connection to the boiler by at least 1.5 m
(see fig. 8).
DIMENSIONS FOR CONNECTING FLUE GAS DUCT