D2194
The firing rates were obtained in spe-
cial test boilers, according to EN 676
regulations.
Fig. 4 indicates the diameter and
length of the test combustion chamber.
Example
Output 407 kW (350 Mcal/h):
diameter 50 cm,
length 1.5 m.
The coupling is ensured when the
boiler is EC type-approved; for boilers
or ovens with combustion chambers of
very different dimensions compared to
those shown in the diagram of Fig. 4,
preliminary checks are recommended.
Fig. 3
Fig. 4
The maximum output is chosen within area A.
The minimum output must not be lower than the minimum limit
of the diagram.
Warning
The firing rate was obtained considering a room temperature of
20°C and an atmospheric pressure of 1013 mbar (approx. 0 m
above sea level), with the combustion head adjusted as shown
in Ch. 4.6.
Length of combustion
chamber
M
RS 45/E BLU
Pressure in
combustion chamber
mbar
A
D497
Mcal/h
kW
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