Technical data

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MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B
1.4 Stove fitting connections
- Horizontal flue gas conduits must be installed with a zero gradient. The
run-off of condensates to the boiler is handled by the eccentricity of the
horizontal terminal. The terminal must be oriented according to the
figure below.

Use the mounting template provided with the boiler to position
holes to be drilled for the outlet of the horizontal forced flue.
The cross section of the ventilation inlet in the premises for type B
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connections (i.e. intake of combustive air into the premises) must be
in compliance with the prevailing standard.
- Type C appliances can only be installed with the systems
mentioned in these technical instructions (particularly concentric
pipes, terminal connection parts).
- As connections of type B
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chimney conduits and type C
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conduits are pressurised, they must be either installed outside or
in a ventilated brick sheath.
Ventilation must be ensured :
- by an opening located in the lower section, taking the air either
from the common ventilated areas or directly from outside, and
- by an opening in the upper section connected directly with the
outside.
The minimum cross section of the air vent and the openings to be
provided must be 100 cm
2
(clear cross section).
The parts of this sheath which can be dismantled must allow for
inspection of the flue gas conduit along its entire length.
Belgium
: The boiler installation and gas connection must be carried out
by a qualified professional in compliance with the NBN D 51.003, NBN D
30.003, NBN B 61.001, NBN B 61.002 and NBN D 51.006 standards.
Comply with the installation instructions and the information on the
authorised lengths of the flue gas pipes.
`Mount the flue gas pipe or the fresh air/flue gas evacuation
system in compliance with the assembly instructions.
`Check the tightness of the flue gas pipe.
- Static test overpressure : 1000 Pa
- Maximum leak rate : 50 l/hm2 depending on the internal surface
of the flue gas pipe
- A diameter 60 = 0.18 m
2
/m, A diameter 80 = 0.25 m
2
/m,
- A diameter 100 = 0.31 m
2
/m, A diameter 130 = 0.40 m
2
/m.
`On concentric (forced flue) flue gas evacuation systems, the
CO2 content in the annular space on the measurement pipe
can also be checked. The installation of the flue gas evacuation
is considered leak tight if the CO2 content measured is less
than 0.2%.
1 10850LTW7H030