Setting The Air/Gas Ratio (Reduced Heat Input) - Baxi POWER HT+ Series Installation, User And Service Manual

Tab.32 Authorised CO
2
Boiler model
POWER HT+ 1.130
POWER HT+ 1.150
POWER HT+ 1.200
POWER HT+ 1.250
Fig.93
Fonction de ramonage
Fonction d'arrêt régulation
Régime manuel
MENU
Fig.94
Fonction de ramonage
Fonction d'arrêt régulateur
MENU
Fig.95
303:Fonct ramonage
Puissance brûleur
Régler ? charge partielle
MENU
7702630 - v02 - 11082018
ranges at maximum output
Type G20 Type G25
9.2 +0.2/- 0 9.2 +0.2/- 0
9.2 +0.2/- 0 9.2 +0.2/- 0
9.2 +0.2/- 0 9.2 +0.2/- 0
8.85 +0.2/- 0 9.2 +0.2/- 0
MW-4000282-FR-01
MW-4000283-FR-01
MW-4000285-FR-01
Type G25.1
10.3 +0.2/-0
10.3 +0.2/-0
9.8 +0.3/-0
9.8 +0.3/-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.
3. Confirm the selection by pressing the
The 303 function appears.
4. Turn the button to select Partial load.
5. Confirm the selection by pressing the
6. Unscrew the left-hand plug, which corresponds to the flue gas
measurement point connection.
7. Connect the flue gas analyser to the connection on the left.
Important
Ensure that the opening around the sensor is completely sealed
when taking measurements.
POWER HT+ 1.130 and POWER HT+ 1.150: Insert the sensor
into the flue gas measurement point to at least 8 cm.
8. Set the boiler's heat input to 0%.
9. Measure the percentage of CO
10. Compare the values measured with the authorised CO
Control and setting values table.
11. If necessary, adjust the air/gas ratio using the OFFSET adjustment
screw.
Important
Turn the gas adjustment screw clockwise to increase the CO
content.
Turn the gas adjustment screw counter-clockwise to reduce the
CO content.
2
8 Commissioning
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
button.
button.
in the flue gases.
2
range in the
2
POWER HT +
2
71