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Tab.39
Checking and setting values for gas type G20 / G25 / G27 / G31
Boiler model
IX 245–130
IX 245–150
IX 245–200
IX 245–250
Tab.40
Authorised CO
2
Boiler model
IX 245–130
IX 245–150
IX 245–200
IX 245–250
Fig.98
Fonction de ramonage
Fonction d'arrêt régulation
Régime manuel
MENU
7702684 - v04 - 05092019
ranges at maximum output
Type G20
9.2 +0.2/- 0
9.2 +0.2/- 0
9.2 +0.2/- 0
8.85 +0.2/- 0
MW-4000282-FR-01
8. Connect the flue gas analyser to the measurement point.
Important
Ensure that the opening around the sensor is completely sealed
when taking measurements.
IX 245–130 and IX 245–150: insert the sensor at least 8 cm into
the flue gas measurement point.
9. Set the boiler's heat input to 100% at full load.
10. Measure the percentage of CO
11. Compare the values measured with the set point values in the Control
and setting values table.
12. If necessary, adjust the air/gas ratio using the gas flow rate
adjustment screw.
Important
Turn the gas adjustment screw clockwise to reduce the CO
content.
Turn the gas adjustment screw counter-clockwise to increase
the CO
content.
2
Type G25
9.2 +0.2/- 0
9.2 +0.2/- 0
9.2 +0.2/- 0
9.2 +0.2/- 0
8.4.3
Setting the air/gas ratio (reduced heat input)
1. Accessing the Chimney sweep function 303 function.
The Chimney sweep function parameter appears.
2. Turn the
button to select Chimney sweep function.
in the flue gases.
2
Maximum CO (ppm)
< 250
< 250
< 250
< 250
Type G27
Type G31
9.2 +0.2/-0
10 +0.2/- 0
9.2 +0.2/-0
10 +0.2/- 0
8.85 +0.2/-0
10.2 +0.2/- 0
8.85 +0.2/-0
10.2 +0.2/- 0
8 Commissioning
2
IX
77
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