Potterton SIRIUS THREE FS 70 Installation Manual page 64

8 Commissioning
Fonction de ramonage
Fonction d'arrêt régulateur
MENU
303:Fonct ramonage
Puissance brûleur
Régler ? charge partielle
MENU
Fig.64 Connecting the flue gas analyser
1
2
64
4. Confirm the selection by pressing the
The 303 function appears.
MW-4000283-FR-01
5. Turn the
6. Confirm the selection by pressing the
MW-4000285-FR-01
7. Unscrew the left-hand plug, which corresponds to the flue gas
measurement point connection.
8. Connect the flue gas analyser to the connection on the left.
Important
9. Set the boiler's heat input to 0%.
10. Measure the percentage of CO
11. Compare the values measured with the authorised CO
Control and setting values table.
Important
The CO
CO
12. If necessary, adjust the air/gas ratio using the OFFSET adjustment
screw.
Important
Caution
Be sure to correctly replace the plug after taking a measurement.
MW-3000046-03
For more information, see
Check-list before commissioning, page 59
Gas valve basic settings, page 65
CO2 checking and setting values, page 66
Using the fixed-speed boiler, page 91
Checking combustion (reduced heat input), page 108
button to select Partial load.
Ensure that the opening around the sensor is completely sealed
when taking measurements.
SIRIUS THREE FS 50 and SIRIUS THREE FS 70 : Insert the
sensor into the flue gas measurement point to at least 8 cm.
SIRIUS THREE FS 90 and SIRIUS THREE FS 110 : Insert the
sensor into the flue gas measurement point to at least 9 cm.
settings range at reduced heat input depends on the
2
value measured at maximum heat input.
2
Turn the gas adjustment screw clockwise to increase the CO
content.
Turn the gas adjustment screw counter-clockwise to reduce the
CO content.
2
button.
button.
in the flue gases.
2
range in the
2
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