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5.2.3 - Sealed configuration by chimney flue
Definition: Lining of an existing chimney flue,
sealed with respect to the installation room by a PP
corrugated flue of Ø 80 (3.15 inch) or 110
(4.33 inch) (in this case the air inlet is obtained by
the chimney flue around the combustion product
outlet) - (no ventilation constraints for the boiler).
- The roof termination specific to this configuration
can have an outlet below the roof,
- 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,
- The air is sucked in by the burner from outside the
room through the concentric terminal.
- Refer to the CSTB technical notice for install-
ing flues.
5.2.3.1 - Installation example
Fig. 10
Accessories :
3) PPtl tube
80 (3.15 inch) L = 1 m (3.28 ft) (cut to the
length required),
3) PVC tube
125 (4.92 inch)L = 1 m (3.28 ft) (cut to the
length required),
or 1+3 = concentric extension
4) Bleed T-bracket (PPtl
(PPtl
110 (4.33 inch) with at input, an offset reducing
coupling of
80/110 (3.15/4.33 inch) for the FCX 30)
(preferred option), or Ø 80 (3.15 inch)or
90° elbow,
5) Siphon,
6) PP corrugated flue (
(
110 (4.33 inch) for FCX 30)
7) Termination (outlet possible below the roof)
9) Bleed T-bracket support
10) Chimney spacers
Maximum length allowed: :
Lmax L1 + L2 + 1 m (3.28ft) 9 m (29.5 ft)
- T-bracket added reduces the total length allowed
by 1 m (3.28 ft).
- 18 -
INSTALLATION
7
10
6
3
1
4
9
5
L2 = 1 m
maxi
80/125 (3.15/4.92 inch)
80 (3.15 inch) for FCX 22) -
110 with a
80 (3.15 inch)for FCX 22) -
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