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INSTALLATION
5.2.2 - Configuration with pressurized lining
(B
23p
)
Definition
: Lining of an existing chimney flue by a
corrugated PP flue conduit of
110 (4.33 inch) ac-
cording to the height.
- The termination must have its outlet
above
the
roof (comply with the local intructions régula-
tions),
- Do not use the hose for a horizontal assem-
bly: condensate may be retained.
- Fit a siphon (5) with a minimum 80 mm
(3.15 inch) seal between the bleed T-bracket and
the waste water pipe,
- The bleed T-bracket at the foot of the flue is op-
tional when the vertical flue is short (L1 < 5 m),
- Ventilation for the flue (rep. 8) and the heating
system (section 2 - chapter V - INSTALLA-
TION) must be provided.
- If the boiler is installed in premises that have me-
chanical air extraction, ensure that this does not
cause negative pressure.
- The premises must never be fitted with other ap-
pliances using natural draft to operate.
- The air is sucked in by the burner directly from the
room in which the boiler is fitted.
- The burner air-inlet is equipped with a flap door
valve that reduces losses caused by the accu-
mulation of soot.
5.2.2.1 - Installation example
Accessories :
1) PPtl off-centre reduction
80/110 (3.15/4.33 inch),
2) /
3) PPtl tube
110 (4.33 inch) L = 1 m (3.28 ft)
(cut to the length required),
4) Bleed T-bracket
110 (4.33 inch)
5) Siphon,
6) PP corrugated flue
110 (4.33 inch),
7) Termination (above the roof)
8) Lining ventilation
9) Bleed T-bracket support
10) Chimney spacers
Note:
- Calculation of the diameters for the conduits to be
made according to the local instructions regula-
tions.
- Each 45° elbow added reduces the total length al-
lowed by 0.5 m.
Models
Maximum permitted length L1 with
bleed T-bracket with horizontal
connection 1 m (3.28 ft) at conduit
diameter
Conduit
110 (4.33 inch)
FCX 22 C
20 m (66 inch)
FCX 30 C
15 m (49 inch)
6
4
1
3
8
L1
0
,4
m
7
FC
X-
5
2
-0
L2 = 1 m
maxi
9
5
10
Fig. 9
