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1.13 CONFIGURATION TYPE B,
OPEN CHAMBER AND FORCED
DRAUGHT FOR INDOORS.
e appliance can be installed inside buildings
in B mode; in this case, all technical rules, and
national and local regulations in force, must be
complied with.
- Type B open chamber boilers must not be
installed in places where commercial, artisan
or industrial activities take place, which use
products that may develop volatile vapours
or substances (e.g. acid vapours, glues, paints,
solvents, combustibles, etc.), as well as dusts
(e.g. dust deriving from the working of
wood, coal nes, cement, etc.), which may be
damaging for the components of the appliance
and jeopardise functioning.
- In con guration type B, the boilers must not be
installed in bedrooms, bathrooms or in bedsits.
-
e installation of appliances in con guration
B is only recommended outdoors (in a partially
protected place) or in places that are not lived
in and which are permanently ventilated.
1.14 FLUE EXHAUST TO FLUE/CHIMNEY.
Flue exhaust does not necessarily have to be
connected to a branched type traditional ue.
e ue exhaust can be connected to a special
LAS type multiple ue. Multiple and combined
ues must be specially designed according to
the calculation method and requirements of the
standards, by professionally quali ed technical
sta . Chimney or ue sections for connection
of the exhaust pipe must comply with requisites
of technical standards in force.
1.15 DUCTING OF FLUES OR
TECHNICAL SLOTS.
Ducting is an operation through which by the
introduction of one or more relevant pipes,
a system is realised for the evacuation of the
combustion products of a gas appliance made up
from the coupling of an existing or new ducting
pipe with a chimney, ue or technical slot (also
in new buildings). Ducting requires the use of
ducts declared to be suitable for the purpose by
the manufacturer. Follow the installation and
user instructions provided by the manufacturer
and the requirements set forth by standards.
1.16 FLUES, CHIMNEYS AND CHIMNEY
CAPS.
The flues, chimneys and chimney caps for
the evacuation of combustion products must
be in compliance with applicable standards.
Chimneys and roof-installed exhaust terminals
must comply with the outlet height and with the
distance from technical volumes set forth by the
technical standards in force.
Positioning the wall exhaust terminals.
exhaust terminals must:
- be installed on external perimeter walls of the
building;
- be positioned according to the minimum
distances specified in current technical
standards.
Combustion products exhaust of natural or
fan assisted appliances in open-top closed
environments. In spaces closed on all sides
with open tops (ventilation pits, courtyards etc.),
direct ue gas exhaust is allowed for natural or
forced draught gas appliances with a heating
power range from 4 to 35 kW, provided the
conditions as per the current technical standards
are respected.
1.17 SYSTEM FILLING.
Once the boiler is connected, proceed with
system lling via the lling valve (Fig. 2-2).
Filling is performed at low speed to ensure release
of air bubbles in the water via the boiler and
heating system vents.
e boiler has a built-in automatic venting valve
on the circulator. Check if the cap is loose.
Open the radiator vent valves. Close radiator
vent valves when only water escapes from them.
Close the lling valve when the boiler manometer
indicates approx. 1.2 bar.
N.B.: during these operations turn on the
circulation pump at intervals, by means of the
stand-by/summer winter button (2) positioned
on the control panel. Vent the circulation pump
by loosening the front cap and keeping the motor
running.
Tighten the cap a er the operation.
1.18 GAS SYSTEM START UP.
To start up the system, refer to the standard
in force.
In particular, for new gas systems:
- open windows and doors;
- avoid presence of sparks or naked ames;
- bleed all air from pipelines;
- check that the internal system is properly sealed
according to speci cations.
16
1.19 BOILER START UP IGNITION .
For issue of the Declaration of Conformity
provided for by Italian Law, the following must
be performed for boiler start-up:
- check that the internal system is properly sealed
according to speci cations;
- ensure that the type of gas used corresponds to
boiler settings;
- switch the boiler on and ensure correct ignition;
e
- make sure that the gas ow rate and relevant
pressure values comply with those given in the
manual (Par. 3.18 / 3.21);
- ensure that the safety device is engaged in the
event of gas supply failure and check activation
time;
- check activation of the main switch located
upstream from the boiler;
- check that the concentric intake-exhaust
terminal (if tted) is not blocked.
e boiler must not be started up even if only
one of the checks should be negative.
N.B.: the preliminary boiler check must be carried
out by a quali ed technician.
warranty is valid from the date of inspection.
e test certi cate and warranty is issued to the
user.
e standard boiler
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