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INSTALLERUSER
MAINTENANCE TECHNICIAN
1.10 FLUE EXHAUST TO FLUE/CHIMNEY.
Flue gas 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 qualied technical
sta. Chimney or ue sections for connection
of the exhaust pipe must comply with requisites
of technical standards in force.
1.11 DUCTING OF EXISTING FLUES.
With a specic “ducting system” it is possible to
reuse existing ues, chimneys and technical ope-
nings to discharge the boiler ue gases. 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 of standards.
1.12 FLUES, CHIMNEYS AND CHIMNEY
CAPS.
e ues, chimneys and chimney caps for the
evacuation of combustion products must be in
compliance with applicable standards.
Positioning the draught terminals. e draught
terminals must:
- be installed on external perimeter walls of the
building;
- be positioned according to the minimum di-
stances specied in current technical standards.
Combustion products exhaust of 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.
1.13 SYSTEM FILLING.
Once the boiler is connected, proceed with sy-
stem lling via the lling valve (Fig. 2-2).
Filling is performed at low speed to ensure rele-
ase of air bubbles in the water via the boiler and
heating system vents.
e boiler has a built-in automatic venting valve
on the pump. Check if the cap is loose.
Open the radiator air vent valves. Close radiator
vent valves only when 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 aer the operation.
1.14 GAS SYSTEM STARTUP.
To start up the system proceed as follows:
- 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 specications.
1.15 BOILER STARTUP IGNITION.
For issue of the envisioned Declaration of Con-
formity, the following must be performed for
boiler start-up:
- check that the internal system is properly sealed
according to specications;
- make sure that the type of gas used corresponds
to boiler settings;
- switch the boiler on and check correct ignition;
- make sure that the gas ow rate and relevant
pressure values comply with those given in the
manual (par. 3.18);
- 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 intake/exhaust concentric ter-
minal (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 boiler preliminary check must be carried
out by a qualied technician. e conventional
boiler warranty is valid as of the date of testing.
e test certicate and warranty is issued to the
user.
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