Viessmann Vitomax LW Operating And Service Instructions page 27

Low pressure hot water boilers
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Adjusting the burner
Boiler size
Max. pressure drop on the flue
gas side at 110 °C
For natural gas
For EL fuel oil
Tab. 10
Boiler type M82A
Boiler size
Rated heating output at 110 °C
For natural gas
For EL fuel oil
Rated heating output at 120 °C
For natural gas
For EL fuel oil
Max. pressure drop on the flue
gas side at 110 °C
For natural gas
For fuel oil EL
Max. pressure drop on the flue
gas side at 120 °C
For natural gas
For fuel oil EL
Tab. 11
Boiler type M84B
Boiler size
Rated heating output at 110 °C
For natural gas
For EL fuel oil
Max. pressure drop on the flue
gas side at 110 °C
For natural gas
For EL fuel oil
Tab. 12
Protecting the boiler from dew point corrosion
Adjust the full burner load to the rated boiler heating
output.
Leave the boiler switched on even during the sum-
mer months (full load on constant standby).
All manuals and user guides at all-guides.com
(cont.)
3
mbar
12.4
mbar
8.9
1
MW
2.10
MW
2.10
MW
2.10
MW
2.10
mbar
7.0
mbar
6.3
mbar
7.0
mbar
6.3
3
MW
10.00
MW
10.00
mbar
11.9
mbar
10.4
Commissioning, inspection, maintenance
4
5
6
14.8
13.8
14.4
9.4
8.0
7.7
2
3
4
2.50
3.00
3.50
2.50
3.00
3.50
2.50
3.00
3.50
2.50
3.00
3.50
8.1
9.3
9.9
7.4
8.4
9.0
8.1
9.3
9.9
7.4
8.4
9.0
4
5
6
12.00
14.00
16.00
12.00
13.04
13.09
14.2
13.3
13.9
12.5
11.7
10.4
7
8
9
16.1
17.6
18.1
8.2
9.3
9.1
5
6
7
4.20
5.00
6.00
4.20
5.00
6.00
4.20
5.00
6.00
4.20
5.00
6.00
11.2
12.4
14.6
10.1
11.2
13.2
11.2
12.4
14.6
10.1
11.2
13.2
7
8
9
18.00
20.00
21.50
16.21
16.90
16.90
15.7
17.4
18.0
10.8
10.4
9.0
27

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M148M62M64M82M84

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