Configuration Type B, Open Chamber And Fan Assisted For Indoors; Flue Exhaust To Flue/Chimney; Flues, Chimneys, Chimney Pots And Terminals; System Filling - Immergas VICTRIX EXA 24 X 1 ERP Instruction Booklet And Warning

1.19 CONFIGURATION TYPE B, OPEN CHAMBER AND
FAN ASSISTED FOR INDOORS.
The appliance can be installed inside buildings in B
in this case, all technical rules and national and local regulations
in force, must be complied with.
For installation the cover kit must be used, referred to in (Par. 1.13

1.20 FLUE EXHAUST TO FLUE/CHIMNEY.

Flue exhaust does not necessarily have to be connected to a
branched type traditional flue. The flue exhaust, for boiler clots
installed in C configuration, can be connected to a special LAS
type multiple flue. For B configurations, exhaust is only allowed
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into individual chimney or directly into the external atmosphere
via a suitable terminal, unless otherwise provided for by local
regulations in force. The multiple flues and the combined flues
must also only be connected to type C appliances of the same
type (condensing), having nominal heat inputs that do not differ
by more than 30% less with respect to the maximum that can be
attached and powered by the same fuel. The thermo-fluid dynamic
features (flue flow rate, % of carbon dioxide, % humidity etc....) of
the appliances attached to the same multiple flues or combined
flues, must not differ by more than 10% with respect to the average
boiler attached. Multiple and combined flues must be specially
designed according to the calculation method and requirements
of the technical standards in force (such as EN 13384), by a
professionally qualified company. Chimney or flue sections for
connection of the flue exhaust pipe must comply with requisites
of technical standards in force. It is possible to replace a type C
conventional device with one provided with condensation only, if
the derogation conditions established by the regulations in force
have been verified.
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1.21 FLUES, CHIMNEYS, CHIMNEY POTS AND
TERMINALS.
The flues, chimneys and chimney pots for the evacuation of com-
or B mode;
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bustion 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 ue exhaust terminals.
The wall flue exhaust terminals must:
- be installed on external perimeter walls of the building (Fig. 28);
- be positioned according to the minimum distances specified in
current technical standards.
Combustion products exhaust of natural draught or fan assisted
appliances in open-top closed environments.
In spaces closed on all sides with open tops (ventilation pits,
courtyards etc.), direct combustion product exhaust is allowed for
natural draught or fan assisted gas appliances with a heat input
range from 4 to 35 kW, provided the conditions as per the current
technical standards are respected.

1.22 SYSTEM FILLING.

Once the boiler is connected, proceed with system filling via the
filling cock (Fig. 35 and 4). Filling is performed at low speed to
ensure release of air bubbles in the water via the boiler and central
heating system vents.
The boiler has a built-in automatic vent valve on the pump. Check
if the cap is loose. Then open the radiator vent valves.
Close radiator vent valves when only water escapes from them.
Close the filling valve when the boiler pressure gauge indicates
approx. 1.2 bar.
N.B.: during these operations, enable the automatic vent functions
on the boiler.

1.23 FILLING THE CONDENSATE DRAIN TRAP.

On first lighting of the boiler, flue gas may come out the conden-
sate drain; after a few minutes' operation check that this no longer
occurs. This means that the drain trap is filled with condensate to
the correct level preventing the passage of flue gas.
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