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Commissioning
Flue gas quantity and adjustment
Minimum output
Switch the boiler to commisioning
mode, while keeping flue cleaner key
(8) pressed, until the red LED (3)
starts to flash (double flash). The
display shows alternately the figures 1
and 00. With Hot Water Temperature
Adjustment (11) turned fully
clockwise, the boiler is working in
heating mode at 100% output. i.e.
maximum output
The boiler needs to be set for
operation at minimum load. Turn the
Hot water temperature adjustment
(11) anticlockwise as far as it will go
(the flow temperature of the boiler and
the figure 0 flash alternately on the
display). From this moment, the boiler
is working at minimum output.
Wait until the boiler stabilises and
then carry out the flue gas
measurement. Check the C0
2
value
at the same time by means of the
following chart.
24 HG
30 HSG/HG
C0
2
[%]
C0
2
[%]
G20 Natural gas H
9,3 -9,7
9,0 - 9,4
G31 Propane
10,9 - 11,3
10,8 - 11,2
The measurement of C0
2
values must take place with appliance casing fitted.
If values remain within the limits given
in the chart, no further regulation is
necessary.
After these measures the gas flow rate
on the counter should be checked,
taking into account the specifications
contained in the table of technical
data.
If the checks are completed, the
heating appliance must be re-set
manually to normal operation.
For this, keep the flue cleaner key
(8) pressed until the red LED (3)
goes out
If the measured values differ from the
values stated, proceed as follows:
(Numbers in the following text relate to
pictures above)
Remove the cap (2) using a
Torque T-40 bit then adjust the
Low Fire adjustment (3) on the gas
using the same T-40 bit: clockwise
to increase and anticlockwise to
decrease the C0
2
value of the
reading (because of the sensitivity
of the screw, minimum rotations
are sufficient)
Note: Because of the sensitivity of the
adjustment, minimum adjustments
should only be made, wait a few
seconds, until the C0
2
value has
stabilised, then if applicable repeat
adjustment.
After measuring, check again the
C0
2
values at High Fire. If High
fire requires any readjustment
also check and readjust Low Fire
as required.
3
26


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