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1.7 IMMERGAS FLUE SYSTEMS.
Immergas supplies various solutions separately
from the water heaters regarding the installation of
air intake terminals and flue extraction, which are
fundamental for water heater operation.
Attention: The water heater must only be installed
together with an original Immergas air intake and
flue gas exhaust system, in compliance with the
standards in force. This system can be identified
by an identification mark and special distinctive
marking bearing the note " not for condensing
boilers".
The flue exhaust pipes must not be in contact with
or be near to flammable materials. Moreover, they
must not pass through buildings or walls made of
flammable material.
•
Positioning of double lip seals.
For correct posi-
tioning of lip seals on elbows and extensions, follow
the assembly direction
(Fig. 5)
.
• Coupling extension pipes and concentric
elbows. To install snap-fit extensions with
other elements of the flue extraction elements
assembly, follows:
Fit the concentric pipe or elbow with the male
side (smooth) on the female section (with lip
seal) to the end stop on the previously installed
element. This will ensure sealing and joining of
the elements correctly.
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
water heater intake-exhaust terminal, even
temporarily.
•
N.B.:
when installing horizontal pipes, a min-
imum inclination towards the water either of
3% must be maintained and a section clamp
with plug must be installed every 3 metres.
•
Diaphragm installation.
For proper water
heater operation, a diaphragm must be installed
on the outlet of the sealed chamber and before
the exhaust pipe
(Fig. 6)
.
N.B.:
the diaphragm is supplied as per standard
with the water heater.
Attention: if installation requires significant flue exhaust sections, it is necessary to consider the formation of condensate and thus use the “blue series”
insulated type of flue.
Caesar Eco 11
type of exhaust
duct length [m]
excluding the 90° outlet
bend from the appliance.
Ref. fig. 7
flue gas
diaphragm
[d. mm]
head loss of
every additional
bend
With separate ducts having different lengths
without diaphragm - with a 45 diam. diaphragm - with a 43 diam. diaphragm
45°
90°
Len
gt
h o
f fl
ue exh
au
st p
ip
e (m)
B22
up to 5
43
1.3 m 1.8 m
from 5 to 10
45
from 10 to 23
none
Type C
d.60/100
horizontal
up to 1
43
1 m 1.4 m
from 1 to 2.7
45
from 2.7 to 5.7
none
Type C
d.60/100
vertical
up to 2
43
1 m 1.4 m
from 2 to 3.7
45
from 3.7 to 6.7
none
Type C
d.80
4+4
43
1.3 m 1.8 m
from 4+4 to 8+8
45
from 8+8 to 16+16
none
Caesar Eco 14
type of exhaust
duct length [m]
excluding the 90° outlet
bend from the appliance.
Ref. fig. 7
flue gas
diaphragm
[d. mm]
head loss of
every additional
bend
With separate ducts having different lengths
without diaphragm - with a 45 diam. diaphragm - with a 43 diam. diaphragm
45°
90°
Len
gt
h o
f fl
ue exh
au
st p
ip
e (m)
B22
up to 4
45
1.3 m 1.8 m
from 4 to 10
47
from 10 to 20
none
Type C
d.60/100
horizontal
up to 1
45
1 m 1.4 m
from 1 to 1.9
47
from 1.9 to 3.7
none
Type C
d.60/100
vertical
up to 2
45
1 m 1.4 m
from 2 to 2.9
47
from 2.9 to 4.7
none
Type C
d.80
4+4
45
1.3 m 1.8 m
from 4+4 to 8+8
47
from 8+8 to 14+14
none
Duct length/metres
Maximum completed length
The head loss of the
90° bend coming
out from the appli-
ance must
NOT
be
calculated
Air intake pipe length (m)
Air intake pipe length (m)
