58
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Figure 15-9 - Combustion analysis socket
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D - Gas inlet pressure plug.
E - CO2 adjustment screw.
F - Factory default adjustment screw (do not touch).
020010.01.016
E
D
F
E
D
F
020010.01.022
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2
seal
and any adjustments
Table 15-8 shows the correct CO
2
values for an appliance
working in normal conditions at an altitude of less than
1000 metres. Values differing from those shown can cause
malfunctions. To check and, if necessary, adjust said value a
combustion analysis must be done. Proceed as follows:
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2
seal and any
adjustments on 70T model appliances
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appliance and contact the supplier.
7KHÀXHV\VWHPPXVWFRQWDLQDSXUSRVHSURYLGHGWHVWSRLQW
for the analysis of combustion products. The test point should
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15-9, part “F”).
2.- Switch on the appliance and open the bridge between
terminals “10” and “11”;
3.- Make sure that the setpoint temperature is higher than the
boiler/water heater temperature;
4.- Access the installer menu (see section 16.15) and set
parameter
2010
to
HIGH.
The appliance will now work
for 20 minutes at maximum output heat;
5.- Wait for two minutes to allow CO
2
level to stabilise;
6.- Insert the combustion analyser sensor into socket “F” shown
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7.- Compare the CO
2
value measured with the value shown in
table 15-8. Be sure to read the correct value for the type of
gas supplied. If the CO
2
value does not match the one in table
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a 2.5 mm hex spanner (turn the screw clockwise to reduce
the CO
2
value and anticlockwise to increase it). Make small
adjustments, always waiting for the measured CO
2
value to
stabilise before continuing, until you reach the desired value.
8.- Once the correct CO
2
value as per table 15-8 has been
reached, seal the screw with red paint or a similar system
to discourage tampering.
9.- Set parameter
2010
to
LOu
The appliance will now work
for 20 minutes at minimum output heat.
10.- Wait for two minutes to allow the CO
2
level to stabilise;
11.- Compare the CO
2
value read with the one in table 15-8. Be
sure to read the value for the type of gas being used. The
CO
2
value must be within the values shown; if not, stop the
appliance and call the supplier.
12- Set parameter
2010
to
OFF
to bring the appliance back
to normal operation.
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system manufacturer.
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F - Combustion analysis socket
F
