Boiler Maintenance
Cleaning and Maintenance
Page 20
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B 003 04 05
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4
4.3
Instructions for Measuring Emissions
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Clean the system 2 – 5 days before the measurement
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Use fuel that the system is set up for
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Do not make any changes to the system before the measurement (up to approx. 10 minutes
prior) (Open the doors, ..)
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During the measurement, the boiler must be at least half full and a bed of embers must be
present
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The boiler temperature must be > 60 °C, the flue gas temperature must be > 160 °C
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CO
2
values should be between 10 – 14%
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Conduct a partial load measurement (for systems without a storage tank lt. BimSchV.
obligation)
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Partial load operation is evident from the flue gas temperature
´
Conduct a partial load measurement at the beginning or at the end of the emissions
measurement!
U
Throttle the heat emission during the measurement
Under no circumstances should you shut down the fan or reduce its speed!
Typical values
Boiler variants
without heat-exchanger technology
with heat-exchanger technology
Operating phase
Rated load
Partial load
Rated load
Partial load
Flue gas temperature [°C]
190 – 220
150 – 180
160 – 190
130 – 160
CO
2
– value [%]
12 – 14
10 – 14
12 – 14
10 – 14
CO [mg/Nm³]
relative to 13% O
2
100 – 1000
100 – 1000
100 – 1000
100 – 1000
Dust [mg/Nm³]
relative to 13% O
2
50 50 50 50
