Immergas Flue Systems - Immergas MAGIS COMBO PLUS V2 Series Instructions And Recommendations For The Installer

Flow temperature in central heating mode
without external probe
1
U01
(U14)
Flow temperature in cooling mode
without external probe
U02
(U15)
2
Key (Fig. 14,15,16,17,18,19)
1 - Central Heating Set
2 - Cooling Set
TE - External temperature
TM - Flow temperature
U 01 - Zone 2 flow temperature in "User" menu central heating
mode
U 02 - Zone 2 flow temperature in "User" menu cooling mode
U 14 - Zone 3 flow temperature in "User" menu central heating
mode
U 15 - Zone 3 flow temperature in "User" menu cooling mode
Zx - Heating system zone
Z1
Z2 (Z3)
Z2 (Z3)
Z1

1.18 IMMERGAS FLUE SYSTEMS

Immergas supplies various solutions separately from the indoor
units regarding the installation of air intake terminals and flue
exhaust, which are fundamental for indoor unit operation.
The indoor unit must be installed with an original Im-
mergas "Green Range" inspectionable air intake system
and flue gas extraction system made of plastic, with the
exception of configuration C
tions in force and by the product's approval. This flue can
be identified by an identification mark and special dis-
tinctive marking bearing the note "only for condensa-
tion boilers".
For non-original flue system, refer to the technical data
of the appliance.
The plastic pipes cannot be installed outdoors, for tracts
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longer than 40 cm, without suitable protection from UV
rays and other atmospheric agents.
Resistance factors and equivalent lengths
Each flue component has a Resistance Factor based on experimen-
tal 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 cer-
tain length in metres of pipe of the same diameter; the so-called
equivalent length, can be obtained from the ratio between the rel-
ative Resistance Factors.
All indoor units have an experimentally obtainable maximum
19
Resistance Factor equal to 100.
, as required by the regula-
6
23