Connections To The Systems; Connection For Fume Exhaust; Types Of Installations - Ferroli NATURFIRE EVO serie Anleitung Für Betrieb, Installation Und Wartung

NATURFIRE EVO 27 - 34

5.5 CONNECTIONS TO THE SYSTEMS

The connections must be done by a technician who is qualified and/or
authorised by the Manufacturer.

5.5.1. CONNECTION FOR FUME EXHAUST

The boiler works with the combustion chamber in negative pressure and is fitted with a fume
extractor for discharge into the flue. There must be one fume exhaust system for every unit,
no flue discharges can be shared with other generators.
The installer must check the efficiency and state of the flue and its conformity
with the local, national and European regulations.
Only certified pipes and connections with adequate seals guaranteeing their
tightness must be used.
Make sure there is an inspection device at the bottom of the flue for periodical
checking and cleaning, to be done every year (compulsory).
Make sure an approved antiwind cap is installed at the top of the flue.
Flexible metal tubes or fibre cement pipes are prohibited.
In case of fire, turn the boiler off, disconnect the power supply and promptly
call the fire department, and avoid continual attempts to extinguish it.

5.5.1.1. TYPES OF INSTALLATIONS

The components of the fume exhaust system must be chosen in relation to the type of unit to
be installed according to:
▪ EN 1443 Chimneys - General requirements
▪ EN 1856-1 Metal flue liners
▪ EN 1856-2 Metal flue pipes
▪ EN 1457 Chimneys - Clay/ceramic flue liners
▪ EN 13384-1 Chimneys - Thermal and fluid dynamic calculation methods - Part 1: Chimneys
serving one heating appliance
Below are some of the reference standards for Italy:
▪ UNI 10683:2012 Heating appliances fired by wood or other solid biofuels - Testing, installation,
control and maintenance (for thermo-chemical nominal heat output lower than 35 kW)
▪ UNI/TS 11278 General technical specification for selecting smoke ducts/chimney flues
▪ UNI 10847:2000 Single flue systems for liquid and solid-fuel-fired generators - Maintenance
and inspection - Guidelines and procedures
FLUE
Description
A vertical duct for collecting and expelling, at an appropriate height from ground, the fumes
coming from a single unit and, where permitted, more than one.
Technical requirements:
▪ it must be fumetight, isolated and insulated depending on its use;
▪ it must have a mainly vertical path with axis deviation < 45°;
▪ it must be placed at a suitable distance from flammable materials by means of insulation or air gap;
▪ it must preferably have a continuous, free and independent round internal section;
▪ it is advisable for the flue to have an inspectionable chamber for the collection of solid
materials - and any condensate, placed under the beginning of the fume duct.
EN
cod.48427M013_11/19
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