Baxi POWER HT+ Series Installation, User And Service Manual page 70

8 Commissioning
Fig.92
130 - 150 kW
Tab.31 Checking and setting values for gas type G20 / G25 / G25.1 / G27 / G31
Boiler model
POWER HT+ 1.130
POWER HT+ 1.150
POWER HT+ 1.200
POWER HT+ 1.250
70 POWER HT +
200 - 250 kW
7. Unscrew:
POWER HT+ 1.130
POWER HT+ 1.150
POWER HT+ 1.200
POWER HT+ 1.250
8. Connect the flue gas analyser to the measurement point.
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.
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
the left-hand plug, which corresponds to
the flue gas measurement point connec­
tion.
the plug for the rear nozzle.
in the flue gases.
2
Maximum CO (ppm)
< 250
< 250
< 250
< 250
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