26
The combustion heating output of the burner must not
exceed the permissible combustion heating output of
the boiler. Adjust the maximum gas or oil throughput of
the burner to the rated boiler heating output.
Burner operating and service instructions
Use of low-NO
x
burners
Incorrectly adjusted low-NO
x
burners increase the lev-
els of vibration and resonance during operation. This
phenomenon can result in damage to the thermal insu-
lation in the area of the boiler door/doors, the cleaning
aperture covers and the flue gas collectors.
To prevent vibrations and resonances:
■
Adjust the burner correctly.
■
Prevent "hard flames".
■
Carefully monitor the operation of the burner during
the 1st year of operation.
■
Rectify operating faults immediately.
The information and values in the tables relate to the
following general conditions:
■
O
2
content in dry flue gas
–
For natural gas: 3.0
%
by vol.
–
For EL fuel oil: 3.0
%
by vol.
■
Flow/return temperature: 80/60 °C
■
100
%
load
■
Installation altitude: < 500 m above sea level
■
Combustion air temperature: 25 °C
Applicable to M62C:
■
O
2
content in dry flue gas
–
For natural gas: 2.1
%
by vol.
–
For EL fuel oil: 2.7
%
by vol.
Max. pressure drop on the flue gas side
Boiler type M148
Boiler size
1
2
3
4
5
6
7
8
9
A
B
Rated heating output at
110 °C
■
For natural gas
MW
0.65
0.85
1.10
1.40
1.80
2.30
2.90
3.50
4.20
5.00
6.00
■
For EL fuel oil
MW
0.65
0.85
1.10
1.40
1.80
2.30
2.90
3.50
4.20
5.00
6.00
Max. pressure drop on
the flue gas side at 110
°C
■
For natural gas
mbar
2.9
4.4
7.0
8.2
5.5
8.2
10.0
11.0
9.4
10.5
11.2
■
For fuel oil EL
mbar
2.5
3.9
6.2
7.1
4.8
7.2
8.9
9.6
8.1
9.0
10.1
Tab. 8
Boiler type M62C
Boiler size
1
2
3
4
5
6
7
8
9
A
B
C
Rated heating out-
put at 110 °C
■
For natural gas
MW
2.30
2.60
2.90
3.20
3.60
4.20
4.50
5.20
6.00
6.75
8.00
8.80
■
For EL fuel oil
MW
2.30
2.60
2.90
3.20
3.60
4.20
4.50
5.20
6.00
6.75
8.00
8.55
Max. pressure
drop on the flue
gas side at 110 °C
■
For natural gas
mbar
8.5
8.9
9.7
10.4
12.5
14.1
13.3
15.0
16.5
17.2
13.2
12.3
■
For fuel oil EL
mbar
8.1
8.5
9.1
9.8
11.9
13.4
12.6
14.2
15.5
16.3
12.4
10.8
Tab. 9
Boiler type M64B
Boiler size
3
4
5
6
7
8
9
Rated heating output at 110 °C
■
For natural gas
MW
10.00
12.00
14.00
16.00
18.00
20.00
21.50
■
For EL fuel oil
MW
9.12
10.37
11.61
13.09
14.17
16.02
16.90
Commissioning, inspection, maintenance
Adjusting the burner
5673144
Содержание Vitomax LW M148 Series
Страница 35: ...35 5673144...
