Riello RS 120/EV LN, Инструкции по установке, использованию и обслуживанию

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Technical description of the burner
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3.7 Firing rate
During operation, burner output varies between:
• MAXIMUM OUTPUT, selected within area A or B (RS 120/E
LN) (Fig. 3);
• MINIMUM OUTPUT, which must not be lower than the minimum
limit in the diagram.
Tab. F
In order to use also area B (RS 120/E LN) it is necessary to perform
the calibration of the combustion head as explained on paragraph
“Combustion head calibration” page 18.
NOTE:
The FIRING RATE areas given in Fig. 3 have been reduced by
10% with respect to the maximum range that can be reached.
Consult Procedure on page 24 to refer burner operating condition
in high altitude plants.
3.7.1 Minimum furnace dimensions
The firing rates were set in relation to certified test boilers.
Fig. 4 indicates the diameter and length of the test combustion
chamber.
Example:
Output 2579 MBtu/hr:
diameter = 24 inch; length 6.6 ft
3.8 Commercial boilers
The RS 120/EV LN burners are suitable for operation on either
flame-inversion boilers
* or boilers with combustion chambers fea-
turing flow from the base (three flue passes) on which the best re-
sults are obtained in terms of low NOx emissions.
The maximum thickness of the boiler’s front door must not exceed
8” (see Fig. 5).
( * ) For flame inversion boilers, a kit is available to reduce CO emis-
sions if required.
The kit includes 5 gas pipes, identical to the other 5 already fitted
to the burner head. In standard conditions, the burner head is fit-
ted with a second group of pipes, with gas outlet in a different
direction with respect to the others.
With this Kit, the second group of pipes is replaced, so that all
the pipes are the same.
After fitting the kit, ensure they work correctly by measuring the
CO and flue gases emissions.
Model MBtu/hr
RS 120/EV LN 1136
WARNING
The FIRING RATE area values have been ob-
tained considering an ambient temperature of
68 °F (20 °C), and an atmospheric pressure of
394 “WC and with the combustion head adjusted
as shown on page 22.
Fig. 3
20061167
Com
bustion chamber
pr
essur
e
“W
C
RS 120/E LN
Fig. 4
Diameter ( inch )
Le
ngth (
ft
)
F
u
rnace di
me
nsion
s
D2919
Fig. 5
8” max
D1079