32
Requirements and conditions
Sizing of the battery flue system
Each individual heat generator is approved for the
connection to a smoke duct for expulsion outside the
combustion products, through an attack of Ø100mm.
In the case in which the connection in hydraulic cascade
is made of the appliances, it is possible to evacuate the
products of combustion with a single chimney of certain
efficiency for each appliance, or provide for installation of
a single flue gas collector of certain efficiency for all the
appliances. In case the connection in cascade of several
units to the same evacuation duct, is it is necessary to place
one on each exhaust terminal clapet type valve (smoke
non-return valve), to prevent the return of the fumes inside
the boiler if this does not is in operation.
The individual modules must be connected to each other via
a suitably sized flue gas exhaust manifold.
Rinnai supplies manifolds appropriately upon request sized.
This type of installation provides only one expulsion of
fumes, while the air intake is made in the environment.
As required by legislation, the sizing of flues (single or
collective) falls within the scope responsibility of the
designer or installer, who they must comply with specific
technical regulations applicable.
Below is an indicative table of lengths maximum, depending
on the diameters used.
B
A
M
R
G
M
R
G
Model
Number of
appliances
Manifold
diameter
Maximum
length (A + B)
equivalent
Horizontal
section
diameter A
Smoke
expulsion
chimney
diameter B
Equivalent
pressure drop
90 ° curve
Equivalent
pressure drop
45 ° curve
N°
mm
m
mm
mm
m
m
aiM 65
2
160
20
160
160
7
2
3
160
20
160
160
3
2
4
160
20
160
200
3
2
aiM 85
2
160
20
160
160
7
2
3
160
20
160
160
3
2
4
160
20
160
200
3
2
aiM 115
2
160
20
200
200
7
2
3
160
20
200
200
3
2
4
160
20
200
300
3
2
aiM 150
2
200
20
200
200
2
2
3
200
20
200
315
1
1
4
200
20
250
400
1
1
Содержание aiM 115
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