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Commissioning
Combustion analysis
1
R6142
2
4
R6190 - R6539
2
4
3
16
Combustion check at full load
Start the boiler at service mode for full
load operation (
). When you have
W2
reduced P9 to 50% (see previous chap-
ter), the boiler will operate at 50% load.
Allow the boiler to stabilise the combu-
stion for 3 minutes. Then increase P9
step by step up to 100%. Check the
gas pressure on the inlet of the gas
valve while increasing the boiler load:
the gas pressure should never go be-
low the minumum required value
see technical data. Set the minimum
gas pressure switch (1) at 50% of the
required gas pressure.
Check the combustion settings via the
test point in the chimney connection(3).
If necessary, correct the settings with
the flat adjustment screw on the outlet
of the gas valve (2).
Combustion check at minimum load
Switch the boiler to service mode for
minimum load operation (
the combustion settings the same way
as described for full load. If necessary,
correct the settings with the allen key
adjustment screw on either side of the
gas valve (4).
Combustion check at 50% load
An additional reference check of
combustion values at 50% load is
recommended in order to check if the
gas valve is set in such way, that the
modulating behaviour is normal. The
CO
value should be in between the
2
settings of full load and minumum load.
CO value should be equal to full load
and minimum load values.
Make sure parameter P9 is set back to
100 and switch the boiler to automatic
operation (
) after the combustion test
F
is finished.
for natural gas G20 / G25
CO
2, max
CO
max
Convert boiler before operation
(see coversion kit instruction)
CO
2, max
CO
max
for natural gas G20 / G25
). Check
W1
CO
2, min
CO
min
Convert boiler before operation
(see coversion kit instruction)
CO
2, min
CO
min
Combustion settings
R6142-R6539
%
10.2 ± 0.2
ppm
< 30
Combustion settings
for LPG G31
R6142-R6539
%
11.9 ± 0.2
ppm
< 30
Combustion settings
R6142-R6539
%
9.4 ± 0.2
ppm
< 30
Combustion settings
for LPG G31
R6142-R6539
%
10.0 ± 0.2
ppm
< 30
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