Immergas Flue Systems - Immergas EOLO STAR 24 4E Instructions And Warnings

The climate regulator incorporated into the remote panels enables
the system flow temperature to be adjusted to the actual needs
of the room being heated, in order to obtain the desired room
temperature with extreme precision and therefore with evident
saving in running costs. The Mini CRD and CAR
rectly by the boiler by means of the same 2 wires used for the
transmission of data between the boiler and devices.
Digital Remote Mini-Control or CAR
thermostat electrical connections (Optional). The operations
described below must be performed after having removed the vol-
tage from the appliance. Any room chrono-thermostats or remote
controls must be connected to the 40 and 41 terminal blocks,
eliminating the X40 jumper (Fig. 36). Make sure that the On/Off
thermostat contact is of the "clean" type, i.e. independent of the
mains voltage, otherwise the P.C.B. would be damaged. The boiler
can only be connected to one device at a time.
If the Mini CRD or CAR
arrange two separate lines in compliance with current
regulations regarding electrical systems. No boiler
pipes must ever be used to earth the electric system or
telephone lines. Ensure elimination of this risk before making
the boiler electrical connections.
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are fed di-
V2
or On/Off chrono-
V2
remote control is used,
V2
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 exclusively
with an original Immergas "Blue Ran-
ge" inspectionable air intake system and flue
gas extraction system made of plastic, with the
exception of the C6 configuration, as required
by the regulations in force and by the product's
approval.
This flue can be identified by an identification
mark and special distinctive marking bearing
the note "only for condensation boilers".
The flue exhaust pipes must not be in contact
with or be near to flammable materials. Mo-
reover, they must not pass through buildings
or walls made of flammable material.
• Resistance factors and equivalent lengths.
Each flue component has a Resistance Factor based on exper-
imental 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 dimensionless size. It
is however, conditioned by the temperature of the fluids that pass
through the pipe and therefore, varies according to applications
for air intake or flue exhaust. Each single component has a resist-
ance 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 Re-
sistance Factor equal to 100.
The maximum Resistance Factor allowed corresponds to the
resistance encountered with the maximum allowed pipe length
for each type of Terminal Kit. This information allows calcula-
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tions to be made to verify the possibility of setting up various
flue configurations.
Note: to dimension the flue ducting using commercial compo-
nents, refer to the table of combustion parameters (Paragraph 4.2).
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