Immergas EOLO Star Export Manual page 14

Technical documentation Technical documentation
EXTRACTION AND EXHAUST SYSTEMS
(see extraction and exhaust end instructions )
EOLO Star is set for connecting to the special intake/exhaust coupling pipes.
- EXHAUST
Connection to the exhaust ducts is done by means of a flange (1)
or a curved flange to be fitted to the connector (4) on the top part
of the sealed chamber, placing in between a special shaped seal
(6).
The flange differs according to whether the doubled or
concentric system is used.
In the first case, the opening for combustion air extraction (5) is
closed while in the second case, it is exploited.
For correct boiler operation, a diaphragm (7) must be placed on
the exhaust connector (4) in between the flange used (1).
Diaphragms of different diameter are contemplated which must
be fitted according to the type of pipe and its length (see boiler
instruction booklet).
- EXTRACTION
Using the doubled system, connection to the intake ducts is done
in the same way as the exhaust pipes, connecting up to one of the
two 80 mm dia. holes (2) on the top part of the sealed chamber.
The unused hole is closed by means of one of the special caps
(3) featured on the boilers.
In the event of coaxial pipes being used, air intake takes place
by exploiting the concentric hole outside the exhaust connector
(5).
- EXTRACTION EXHAUST KIT
The kits and relevant accessories make it possible to use four concentric systems and two doubled systems.
As regards pressure drop relating to each accessory, the various possible combinations and the use of the
diaphragms to be fitted according to the length of the pipes, see the instructions concerning the extraction
and exhaust ends (boiler instruction booklet). The accessories (curves, extensions and end pieces) are of the
coupling type and seal is provided by special lip seals.
Coupling type horizontal concentric kit 60 /100
The exhaust pipe (φ 60 mm) is fitted inside the extraction
pipe (φ 100 mm).
Connection to the boiler is made using a 90° curve (1)
that can be positioned in any direction and which, by
means of the necessary extensions, must be connected to
the special extraction and exhaust end (2).
Max possible overall length beyond the first curve (1) is 3
straight and horizontal metres.
Coupling type horizontal concentric kit 80 /125
The exhaust pipe (φ 80 mm) is fitted inside the extraction
pipe (φ 125 mm).
Connection to the boiler is made using a 90° curve
diameter 60/100 (1) that can be positioned in any
direction and which, by means of the adapter 60/100-
80/125 (2) and necessary extensions, must be connected
to the special extraction and exhaust end (3).
Max possible overall length beyond the first curve (1) is
7.3 straight and horizontal metres.
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STES ed. 07/01 EOLO STAR