Operation Manual
EN • 13
ENFRRU PL DE IT ES NL
Delta Pro S / Delta Pro Pack : 664Y4900 • E
TYPE OF FLUE CONNECTION
B23 : Connection to a flue with the combustion air taken directly in the
boiler room.
B23P : Connection to an exhaust system of the combustion products
designed to operate with positive pressure.
C13 : Connection by pipes with horizontal terminals that simultaneously
take in combustion air for the burner and discharge combustion
products outside through openings that are either concentric or
close enough together to be subjected to similar wind conditions.
C33 : Connection by pipes with vertical terminals that simultaneously take
in fresh air for the burner and discharge the combustion products
outside through openings that are either concentric or close enough
together to be subjected to similar wind conditions.
C43 : Connection by two ducts to a collective duct system serving more
than one appliance; this system of collective ducts features two ducts
connected to a terminal unit that simultaneously 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.
C53 : Connection to separate ducts for the supply of combustion air and
for venting the combustion products; these ducts may end in zones
with different pressure levels.
C63 : Type C boiler which is intended for connection to a room sealed flue
system which is approved and sold separately.
(Prohibited in Belgium).
Due to the high efficiency of our boilers, the flue gases are
released at low temperature. As a result, there is a risk of
condensation of the flue gases, which could damage some
chimney constructions; to avoid this risk, it is strongly
recommended to line the chimney. To prevent condensates
to flow back into the boiler, we strongly advise to install a
condensates collector. Please contact your installer for more
information.
INSTALLATION
For concentric connection, the total length of the flue must be no more than 6 metres and no less than 1metre (including the terminal).
For double pipe connection (only with gas) :
Gas = 10 metres + 4 pipe bends
Connection type
Models Burners B23 B23P C13 C33 C43 C53 C63
Delta Pro S 25 &
Delta Pro Pack 25
BMV1 / BMR-31 / BMe1
BMV1-FV
BG 2000-S 25
BG 2000-SV 25
Delta Pro S 45 &
Delta Pro Pack 45
BMV2
BMV2-FV
BG 2000-S 45
BG 2000-SV 45
Delta Pro S 55
BMV2
BG 2000-S 55