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INSTALLERUSERMAINTENANCE TECHNICIANTECHNICAL DATA
1.12 IMMERGAS FLUE SYSTEMS
Immergas supplies various solutions separately from the appliances regarding the installation of air intake terminals and ue extraction,
which are fundamental for appliance operation.
e appliance must be installed with an original Immergas "Green Range" inspectionable air intake system and ue gas extrac-
tion system made of plastic, with the exception of conguration C
6
, as required by the regulations in force and by the product’s
approval. is ue can be identied by an identication mark and special distinctive marking bearing the note "only for con-
densation boilers".
For non-original ue system, refer to the technical data of the appliance.
e plastic pipes cannot be installed outdoors, for tracts longer than 40 cm, without suitable protection from UV rays and other
atmospheric agents.
Resistance factors and equivalent lengths
Each ue component has a Resistance Factor based on experimental tests and specied in the table in Paragraph 1.13..
e Resistance Factor for individual components is independent from the type of appliance on which it is installed and has a dimension-
less size.
It is however, conditioned by the temperature of the uids that pass through the pipe and therefore, varies according to applications for
air intake or ue exhaust.
Each single component has a resistance corresponding to a certain length in metres of pipe of the same diameter; the so-called equivalent
length, can be obtained from the ratio between the relative Resistance Factors.
All devices have an experimentally obtainable maximum Resistance Factor (R) equal to 100.
e maximum Resistance Factor allowed corresponds to the resistance encountered with the maximum allowed pipe length for each
type of Terminal Kit.
is information allows calculations to be made to verify the possibility of setting up various ue congurations.
To dimension the ue ducting using commercial components, refer to the table of combustion parameters (Parag. 4.2).
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