Unical S 24, Manual

Page: 28 / 52

28
NOTE:
Do not enter immediately the analyzer
probe in the sampling point, to avoid the
saturation analyzer.
1
1
1
A
B
C
2
2
2
To determine the combustion efficiency
one must make the following measurements:
- measurement of the combustion air temperature
taken in the relevant hole
2
.
COAXIAL PIPES SEPARATE PIPES
PIPES Ø 80 TYPE B23
Flue gas
probe
Air
probe
- measurement of the flue gas temperature and
content of CO
2
taken in the relevant hole
1
.
Take the measurements with the generator in
steady state conditions (see par. 3.11.1).
3.11.2 - POSITIONING THE PROBES
Air
probe
Air
probe
Flue gas
probe Flue gas
probe
It’s important to perform also the
combustion air of combustion analysis,
(Observing that the concentration
of oxygen falls O
2
= 20.8%
tolerance 0.2 - 0.4%).
This is to prevent there being any
recirculation of the fumes.
5 - Burner operating to maximum power
(modulation 100%).
7 - Boiler operating with modulation min.
(modulation 0%).
6 - Vary % of modulation request to the minimum 10% and
select the burner
8 - Disable SWEEPER function. Exit by pressing Home icon.