IHL_UDARA_2016_11_04_BEGB
21
5.3
Converting the appliance to propane
Danger!
• The Udara must only be converted to propane
in Belgium by an engineer appointed by the
manufacturer because a new nameplate (with
another gas category) must be added to the
appliance.
• Never use butane (I3B) as the gas type.
The Udara can be very easily converted to be used
with liquid gas (propane I3P).
It is suf
fi
cient to set the parameter TSP 9 to the value 1
and, next, perform a new calibration.
In Belgium, this conversion must be carried out by an
engineer appointed by the manufacturer because a
new nameplate must be added to the appliance.
Boiler calibration
Phase of procedure:
Combustion set:
Power level:
Boiler temp:
Error:
med...
55
60%
55°C
none
Cancel
Confirm
The working method here is analogous to the previous
step. The controller will complete a number of tests
and, next, “Med ok” will be displayed on the screen if
the combustion is stable. Here you can also change
the CO2 in the combustion gases by changing the
“Combustion set” value. After pressing “Con
fi
rm”, the
appliance will also be tested on low power. If you again
con
fi
rm this test by pressing “Con
fi
rm”, the new
settings will be stored in the burner management
control system.
The normal setting can be read from the table below:
Normal settings I2N
Fase
CS
(typ)
CS
Max
CS
Min
CO
2
±0.5%
NOx
±10 ppm
CO
±10 ppm
Max
50
70
30
8.5
20
< 10 ppm
Med
55
70
35
8.5
20
< 10 ppm
Min
90
120
70
8.5
10
< 50 ppm
Normal settings I3P
Fase
CS
(typ)
CS
Max
CS
Min
CO
2
±0.5%
NOx
±10 ppm
CO
±10 ppm
Max
50
70
30
9.6
20
< 10 ppm
Med
55
70
35
9.6
20
< 10 ppm
Min
90
120
70
9.5
10
< 50 ppm
Warning!
• Most
fl
ue gas analysing devices measure the
residual oxygen in the
fl
ue gases and calculate
the CO2 based on this value. The Udara works
in a vacuum (
fl
ue gas fan after the combustion
chamber) and, therefore, leaks in the combus-
tion circuit (for example, an empty condensate
trap) will lead to a dilution of the
fl
ue gases and
an incorrectly measured value. Only change
the adjustment if you are sure that the
combustion circuit is airtight.
• The integrity of the combustion circuit can be
easily established by measuring the
concentration of nitrogen oxides (NOx) in the
fl
ue gases. When the CO2 content is 8.5, the
NOx content is approximately 20 ppm (I2N).
When the CO2 content is 9.6, the NOx content
is approximately 20 ppm (I3P)
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