Riello RS 28/E, Инструкции по установке, использованию и обслуживанию

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Technical description of the burner
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3.8 Firing rate
The burner can work in two ways: low and high fire.
MAXIMUM OUTPUT must be selected in area A (Fig. 4).
MINIMUM OUTPUT must not be lower than the minimum limit
shown in the diagram.
3.8.1 Burner firing rates according to air density
The firing rate area values have been obtained considering a sur-
rounding temperature of 68°F (20°C), and an atmospheric pres-
sure of 398” W.C. and with the combustion head setting as shown
at page 18.
The burner may be required to operate with combustion air at a
higher temperature and/or at higher altitudes.
Heating of air and increase in altitude produce the same effect: the
expansion of the air volume, i.e. the reduction of air density.
The burner fan's delivery remains substantially the same, but the
oxygen content per cubic meter and the fan's head are reduced.
It is therefore important to know if the maximum output required of
the burner at a given combustion chamber pressure remains within
the burner's firing rate range even at different temperature and al-
titude conditions.
Model MBtu/hr kW
RS 28/E 198 58
RS 38/E 266 78
WARNING
The firing rate area values have been obtained con-
sidering an ambient temperature of 68 °F, and an
atmospheric pressure of 394” WC and with the
combustion head adjusted as shown at page 18.
Firing rate for C-UL Canadian Listing (CNL) - 1969 MBtu/hr
Firing rate for C-UL Canadian Listing (CNL) - 1969 MBtu/hr
C
o
mbustion chambe
r
pr
essur
e
“W
C
20106406
Fig. 4
Comb
ustion chamber
pre
s
sure
“WC