Immergas VICTRIX MAIOR 28 - 35 TT 1 ERP Instruction And Recommendation Booklet Download

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1-8

INS

ALLER

MAINTEN

CE TECHNI

1.9 IMMERGAS FLUE SYSTEMS.

Immergas supplies various solutions separately
from the boilers regarding the installation of
air intake terminals and flue exhaust, which are
fundamental for boiler operation.

Attention:  the  boiler  must  be  installed  ex-
clusively  with  an  original  Immergas  “Green
Range”  inspectionable  air  intake  device  and
fumes  extraction  system  made  of  plastic,  as
required by the regulations in force.

e plastic pipes cannot be installed outdoors,

for tracts longer than 40 cm, without suitable
protection from UV rays and other atmos-
pheric agents.

is system can be identified by an identifica-

tion mark and special distinctive marking
bearing the note: “only for condensing boilers”.

•

Resistance factors and equivalent lengths. Each

flue component has a

Resistance Factor

based

on experimental tests and specified in the table
below. The Resistance Factor for individual
components is independent from the type of
boiler on which it is installed and has a dimen-
sionless size. It is however, conditioned by the
temperature of the fluids that pass through the
pipe and therefore, varies according to applica-
tions for air intake or flue 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 boilers have an experimentally obtainable
maximum Resistance Factor equal to 1

The

maximum  Resistance  Factor  allowed  cor-
responds  to  the  resistance  encountered  with
the  maximum  allowed  pipe  length  for  each
type of Terminal Kit. This information allows
calculations to be made to verify the possibility
of setting up various flue configurations.

•

Positioning the gaskets (black) for “green
range”

ue systems.

Position the gasket cor-

rectly (for bends and extensions) (Fig. 1-8):

- gasket (A) with notches, to use for bends;

- gasket (B) without notches, to use for exten-

sions;

N.B.:

if necessary, to ease the push-fitting,

spread the elements with commonly-used talc.

•

Coupling extension pipes and concentric

elbows. To install push-fitting extensions with
other elements of the flue, proceed as follows:
Install the concentric pipe or elbow with the
male side (smooth) on the female side (with lip
seal) to the end stop on the previously installed
element in order to ensure sealing efficiency of
the coupling.

Attention:

if the exhaust terminal and/or

concentric extension pipe needs shortening,
consider that the internal duct must always
protrude by 5 mm with respect to the external
duct.

•

N.B.:

for safety purposes, do not obstruct the

boiler intake/exhaust terminal, even temporar-
ily.

•

N.B.:

when installing horizontal pipes, a mini-

mum inclination of 3% must be maintained and
a section clip with pin must be installed every
3 metres.

1.10 TABLES OF RESISTANCE FACTORS