37
4
SYSTEMA S.p.A.
INFRA ES rev. 02GBEN13112018
EXHAUST AND INTAKE PIPES
4.4 EXHAUST AND INTAKE PIPES
Exhaust pipes can be installed in different systems: on roof, on wall, single coaxial, individual (see paragraph
5.4) or with collective exhaust (paragraph. 5.3) with appropriate electric fan.
To correctly perform the various connections, two aspects must be taken into account:
1) the radiant pipe appliances undergo thermal expansion and thus move;
2) when they are first operated they form condensation.
To facilitate creation of the fume exhaust pipes, Systema provides a special flexible part (cod. 00CEEL0600)
equipped with suitable fittings to be connected to the extractor and to the terminal. This element also acts as
a heat exchanger to lower the fume temperature.
4.4.1 Roof coaxial exhaust and intake pipes
The flue gas exhaust pipes for type C appliances with natural or forced draft must meet the following condi
-
tions:
- they must be metallic;
- they must be made of materials suitable to withstand over time normal mechanical stress, heat and the
action of the combustion products and of their possible condensation.
Both the stainless steel rigid tube and the aluminium rigid tube (the latter with a minimum thickness of 1.5 mm)
can be used.
To avoid any problems due to the relative displacements between the burner and the fixed fume exhaust ter
-
minal on the roof or wall, it is advisable to use the available flexible fume element as an accessory.
For the combustion air intake ducts, any type of metal pipe can be used.
For exhaust fumes and for air intake always use rigid metal pipes with smooth inner surfaces
and a minimum diameter of 100 mm.
The maximum length of fume-air ducts can be obtained according to the model of the appliance in paragraph
4.4.4 on page 40.
The pipes used and the various connections must ensure sealing against the environment served.
POS.
DESCRIPTION
1
Chain DIN 5685 diameter 5.5 mm (tensile strength 7.750
N weight 50 Kg/100 m)
2
S hook diameter 5 mm
3
Flue gas pipe Ø 100 smooth internal wall minimum length
1 m
4
Flexible stainless steel male connector/rigid tube Ø 100
mm
5
Fume exhaust terminal
6
Joint with flexible copper tube Ø 16 mm (alternatively
flexible stainless steel pipe, minimum length 30 cm, see
figs. 5.1-5.2 on page 46)
7
3/4 Manual cut-off valve
8
Main gas piping
9
Electrical power cord 6x1.5 mm²
10
Flexible stainless steel female connector/rigid tube Ø 100
mm
Tab. 4.4
Fig. 4.21
Oscillation
