MCZ Alpha - Manual (Page 9)

INSTALLATION AND USE MANUAL
Chapter 2
page 9
Theoretic notions for installation Technical service - MCZ S.p.A. all rights reserved - Reproduction prohibited
2.4. CHIMNEY FLUE CONNECTIONS
Connections to the chimney flue is important and should be conducted
with care and attention. Stoves have top or rear smoke exhausts.
The smoke exhaust pipe must be assembled to guarantee seals during
product operations in depression and avoid the formation and transport
of condensation to the stove.
Any manual draft adjustment devices inserted in the pipe must not
hermetically close the internal conduit section. These gates must be
equipped with a mechanism that prevents the full rotation of the valve
in the closed position. The minimum safety opening surface must be
3% of the passage section and not less than 10 cm². If the smoke
conduit has a horizontal segment, this must have a minimum upward
gradient of 3-5% (3-5 cm per meter).
The tilted horizontal part must not be longer than 2 ml.
The use of flexible and cement fibre pipes is
prohibited. The smoke stack must not cross rooms
where the installation of combustion devices is
prohibited. The use of pipes in counter-slope is
prohibited.
2.5. CHIMNEY FLUE
The chimney flue is a fundamental element in discharging smoke and
therefore must have the following requisites:
•
It must be waterproof and thermally insulated.
•
It must be made with heat resistant materials, resistant to
combustion products and any condensation.
• It must have a vertical slope with axis deviations not over 45°
and without narrowing.
•
It must meet the requisites indicated in the technical table for
the internal chimney section and height.
•
It must preferably have a circular interior section.
•
If pre-existent and previously operative, it must be clean.
The chimney flue is of primary importance for the
correct operations and safety of your stove.
Illustration of a correctly constructed
chimney flue with a chamber and sealed
door for solid combustion product collection
and discharge at the foot of the external
ascending segment.
Example of a connection to the chimney flue
Cowl
Flue pipe
Air outlet
external
Smoke
connection
MAX 2 mt.
3 - 5 %