26
8.11.2 Installation of coaxial flues 60/100mm – 80/125mm
Coaxial flue kits that are supplied separately. The diagrams below, illustrate some examples of fluing options allowed and the
maximum lengths than can be achieved. It is essential that a flue gas analysis point is made available directly above the boiler.
8.11.3
Brava Slim 30 BFRi
Permitted outlets
max 0,5 m
max 0,5 m
B22P
B52P
C32
C32X
C52
C52X
C42
C42X
B32P
C82
C82X
C42
C42X
C12
C12X
C12
C12X
C32
C32X
B22P-B52-B52P
Combustion air inlet into the atmosphere and smoke
outlet to open air.
NOTE:
opening for combustion air (6 cm
2
x kW).
C12-C12X
Concentric wall smoke outlet The pipes can start from
the boiler but the outlets must be concentric or close
together (no more than 50 cm) to be subject to similar
wind conditions.
C32-C32X
Concentric roof outlet Outlet as C12X.
C42-C42X
Outlet and inlet in shared or separate flue pipes but
subjected to similar wind conditions.
C52-C52X
Separate wall or roof inlet and outlet in different
pressure areas.
NOTE:
the inlet and outlet must never be positioned on
opposing walls.
C82-C82X
Outlet in single or shared flue or with inlet on wall.
P:
smoke outlet system designed to operate with
positive pressure.
X:
appliances and corresponding smoke outlet which
meet German air-tightness requirements.
Fig. 24
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