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Commissioning, inspection, maintenance
Adjusting the burner
Boiler size
Without ECO
■
Type M75C
Boiler size
Nominal steam mass flow rate for
operation with natural gas
Nominal steam mass flow rate for
operation with light fuel oil (HEL)
Flame tube dimensions
Diameter
Smooth pipe, int.
■
7
Corrugated pipe, int.
■
7
Smooth pipe application
limit
Length
Reversing chamber
depth
Burner connections
Max. flame head
■
7
(optional wear-resist-
ant burner entry point)
Max. flame head
■
7
(standard version)
Minimum flame head
■
length
Combustion chamber volume
(min. values)
Flame tube
■
Flame tube length and reversing
■
chamber depth
Pressure drop on the flue gas
side with natural gas
For operating pressure
With ECO 2
■
With ECO 1
■
Without ECO
■
Pressure drop on the flue gas
side with EL fuel oil
For operating pressure
With ECO 2
■
With ECO 1
■
The actual nominal steam mass flow rate may vary subject to the specific system.
*9
For boiler size B and above < 25 bar, the maximum operating pressure depends on the flame tube 7 .
*10
44
(cont.)
1
23 bar
mbar
3.2
5 bar
mbar
3.0
23 bar
mbar
3.5
*9
t/h
*9
t/h
d1
mm
856
d1
mm
850
bar
a
mm
3375
b
mm
520
c
mm
c
mm
e
mm
m³
1.94
m³
2.23
5 bar
mbar
11.4
23 bar
mbar
12.5
*10
5 bar
mbar
9.8
23 bar
mbar
10.8
*10
5 bar
mbar
11.3
mbar
13.3
23 bar
*10
5 bar
mbar
10.2
mbar
11.2
23 bar
*10
5 bar
mbar
8.8
2
3
4
3.7
4.5
5.8
3.4
6.7
7.9
4.0
8.1
9.7
1
2
3
5
6
7
5
6
7
906
931
981
900
925
975
18
18
16
16
3625
3850
4075
520
590
590
Adjusted subject to burner.
2.34
2.62
3.08
2.66
2.96
3.46
10.5
12.4
13.3
11.6
13.7
14.6
10.1
11.5
12.3
11.1
12.8
13.6
12.5
13.6
13.3
14.7
16.1
15.7
9.4
11.1
12.0
10.4
12.3
13.1
9.0
10.3
11.1
5
6
7
7.4
8.4
8.9
10.0
9.4
8.9
9.5
11.3
11.5
10.8
11.7
13.8
4
5
6
8
10
12
14
8
10
12
14
1056
1106
1181
1050
1100
1175
13
13
10
4450
4800
5150
500
590
710
710
360
3.90
4.61
5.64
4.34
5.09
6.19
13.4
13.3
15.1
14.8
14.7
16.8
11.9
12.7
13.9
13.1
14.1
15.5
12.7
14.5
13.1
14.9
17.2
15.3
11.9
12.0
13.4
13.3
13.2
14.9
10.6
11.5
12.3
8
9
10.5
11.2
13.7
7
8
16
14.4
1231
1225
10
5525
810
6.58
7.20
13.8
15.3
12.4
13.7
11.2
13.0
9.6
10.8
8.6
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