eta 13180LP-T, Operation

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Emission measurement Information about measurement
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Long horizontal flue pipes to the chimney must have a
narrow diameter and above-average insulation (>50
mm). Provide enough cleaning apertures in the flue
pipe. A flue pipe to the chimney with a large diameter
would reduce the necessary calculated chimney
diameter. However, with low flow speeds ash deposits
will form, and the theoretically calculated flue draught
will be lost again.
If the chimney has a large diameter, the straight length
of the connecting pipe can be at maximum half of the
effective chimney height (calculation required).
Insulate the connecting pipe to the chimney
The connection between the boiler and the chimney
should be insulated with at least 30 mm, preferably 50
mm, of mineral wool to avoid thermal losses, which
can lead to a build-up of condensation.
Creating a measurement opening in the flue pipe
Create the measurement opening in the vertical
portion of the flue pipe. A straight section of a suitable
length must be present before and after the
measurement opening because otherwise turbulence
at the measurement points will prevent accurate mea-
surements. The distance from the boiler's flue duct
connection or from a pipe bend must be at least twice
the diameter of the flue duct.
Fig. 8-1: Distances for measurement opening
Cleaning aperture in the connecting pipe
Easily accessible cleaning apertures must be available
for cleaning the flue pipe.
Fig. 8-2: Cleaning aperture
8.1.3 Adjustable parameters
Setting the duration of the emission measurement
The duration of the emission measurement is
factory-set to 45 minutes. If necessary, this can
be increased with the [Service] access level. To do so,
switch to the text menu of the boiler. You can adjust the
duration as follows:
Selecting emissions measurement for full load or
partial load
In most cases, emissions measurements must be
performed at full load. National regulations may
stipulate emissions measurement at partial load as
well. If this is the case, you must set the required
output range before starting to measure emissions.
With access level [Service] go to the text menu of the
boiler. Adjust the output range as follows:
If [Combination] is selected, full load measure-
ments will be performed first. After passing of the
selected duration ([MeasDuration]), a message will tell
you when partial load measurements can be
performed.
Boiler
Flue gas
Emission measure
MeasDuration
Boiler
Flue gas
Emission measure
Measurement type