klover TKR 35, Руководство пользователя

Страница: 17 / 52

17
Flue and connection to the same
The Flue is a fundamental component for correct functioning of the
fireplace heating system. The minimum section of the flue must be that
indicated in the fireplace heating system technical features (250 mm).
Each fireplace heating system must be equipped with its own flue,
without other intakes (boilers, fireplaces, stoves, etc…). Flue
dimensions are closely related to its height, which must be measured
from the fireplace heating system flue gas outlet to the chimney base.
In order to guarantee draught, the chimney flue outlet surface must be
twice as big as the flue section. The combustion products exhaust
pipe, generated by the natural draught appliance, must respond to the
following requisites:

Combustion products sealed, waterproof and suitably isolated
and insulated in the same way as the conditions of use (cf UNI
9615);

Realised with suitable materials in order to resist to normal
mechanical stress, heat, action of the combustion products
and in the event of condensation;

Upward alignment after the vertical tract throughout the
remaining pathway with 50% minimum gradient. The sub-
horizontal alignment part must not have a length greater than
¼ of the effective height of the flue or chimney and it must not
however be longer than 2,000 mm;

Preferably circular internal section: squared and rectangular
sections must have rounded angles with radius larger than 20
mm;

Constant, free and independent internal section;

Rectangular sections with 1:5 maximum ratio between the
sides;

If the flue is installed externally it is absolutely necessary
that it is insulated in order to avoid the flue gas cooling
and the formation of condensate;

For the assembly of the flue gas pipes (which go from the
appliance to the flue inlet) elements of non-combustible
material must be used, which are suitable for resisting
combustion products and their condensation;

It is forbidden to utilise fibre cement pipes to connect the
appliances to the flue;