PRESTIGE 42-50-75-100-120 Solo : A1007856 - 664Y6200 • G
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INSTALLATION
It is mandatory to ventilate the boiler room. The high or low air vent opening dimensions
depend on the boiler power and the boiler room size. Refer to the local regulations in force.
FLUE PIPE CONNECTION TYPES
It is mandatory to use ACV flue systems to connect the appliance.
B23P:
: Connection to a combustion product exhaust system designed to operate with positive pres-
sure.
B23
: Connection to an exhaust duct that discharges the combustion products outside the room
where it is installed, with the combustion air being drawn directly from the boiler room.
C13(x)
: Connection using pipes fitted with a horizontal terminal that simultaneously takes in combustion
air for the burner and discharges combustion products outside through openings that are either
concentric or close enough together to be subjected to similar wind conditions, i.e. openings
shall fit inside a square of 50 cm for boilers up to 70 kW and inside a square of 100 cm for boilers
above 70 kW.
C33(x)
: Connection using pipes fitted with a vertical terminal that simultaneously takes in fresh air for the
burner and discharges combustion products outside through openings that are either concen-
tric or close enough together to be subjected to similar wind conditions , i.e. openings shall fit
inside a square of 50 cm for boilers up to 70 kW and inside a square of 100 cm for boilers above
70 kW.
C43(x)
: Connection using two pipes to a collective duct system serving more than one appliance; this
system of collective ducts features two pipes connected to a terminal unit that simultaneous-
ly takes in fresh air for the burner and discharges the combustion products outside through
openings that are either concentric or close enough together to be subjected to similar wind
conditions. C43(x) boilers are suitable for a connection to a natural draught chimney only.
C53(x)
: Connection to separate ducts for supplying combustion air and discharging combustion prod-
ucts; these ducts may end in zones with different pressure levels, but are not allowed to be
installed on opposite walls of the building.
C63(x)
: Type C boiler meant to be connected to a system for supplying combustion air and discharg-
ing combustion products, that is approved and sold separately (Prohibited in some countries
(e.g. Belgium) - refer to local regulations and standards in force). Terminals for the supply of
combustion air and for the evacuation of combustion products are not allowed to be installed
on opposite walls of the building. See also the following additional specifications:
• Maximum allowable draught is 200 Pa.
• Maximum allowable pressure difference between combustion air inlet and flue gas outlet
(including wind pressures) is 150 Pa (for P42/P50/P75) and 180 Pa (for P100/P120).
• Condensate flow is allowed into the appliance.
• Maximum allowable recirculation rate of 10% under wind conditions.
C83(x)
: Connection using a single or double duct system. The system is made of a normal exhaust
flue duct that discharges the combustion products. The appliance is also connected through a
second duct fitted with a terminal, that supplies the burner with fresh outdoor air.
C93(x)
: Connection using an individual system whose combustion product exhaust duct is installed in
an exhaust duct that is integral with the building. The appliance, the exhaust duct and the ter-
minal units are certified as an inseparable assembly. Minimum usable diameter for the vertical
duct supplying the combustion air is 100 mm.
The C93 configuration enables airtight operation in a pre-existing chimney. The
combustion air crosses the space between the tubing and the pre-existing chimney. Make
sure to clean the pre-existing chimney thoroughly prior to installation, especially if there
is soot or tar residue. Make sure that there is a clearance area for the combustion air at
least equivalent to the area that would have been provided by separate concentric ducts
or air intake ducts.
C
13
C
33
C
53
C
43
C
43
C
43
C
33
B
23P
C
43
C
43
C
43
C
93
B
23
