5
FIRING RATE (A)
During operation, burner output varies between:
• MAXIMUM OUTPUT, selected within area A,
• and MINIMUM OUTPUT, which must not be lower
than the minimum limit in the diagram.
RS 160 /M LN
= 1136 MBtu/hr = 333 kW
Important
The FIRING RATE area values have been obtained con-
sidering an ambient temperature of 68 °F (20 °C), and
an atmospheric pressure of 394 “WC and with the com-
bustion head adjusted as shown on page 8.
Note:
The FIRING RATE areas given in figure (A) have been
reduced by 10% with respect to the maximum range that
can be reached.
Consult Procedure on page 15 to refer burner operating
condition in high altitude plants.
MINIMUM FURNACE DIMENSIONS (B)
The firing rates were set in relation to certified test boil-
ers.
Figure (B) indicates the diameter and length of the test
combustion chamber.
Example:
Output 2579 MBtu/hr:
diameter = 23.6 inch; length 6.6 ft
COMMERCIAL BOILERS (C) - IMPORTANT
The RS 160/M LN burner is suitable for operation on ei-
ther flame-inversion boilers* or boilers with combustion
chambers featuring flow from the base (three flue pass-
es) on which the best results are obtained in terms of low
NOx emissions.
The maximum thickness of the boiler’s front door must
not exceed 10” (see fig. C).
(*) For flame inversion boilers, a kit is available to reduce
CO emissions if required.
The kit includes 5 gas pipes, identical to the other 5
already fitted to the burner head. In standard condi-
tions, the burner head is fitted with a second group of
pipes, with gas outlet in a different direction with re-
spect 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.
(A)
D2798
C
o
m
b
u
s
ti
o
n
c
h
a
m
b
e
r
p
re
s
s
u
re
“
W
C
(B)
D2919
10” max
D1079
(C)
Diameter (inches)
L
e
n
g
th
(
fe
e
t)
R
e
c
o
m
m
e
n
d
e
d
f
u
rn
a
c
e
d
im
e
n
s
io
n
s
Firing rate for C-UL Canadian Listing (CNL)
6302 MBtu/hr
Содержание 20011691
Страница 2: ......
