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7. Checking and maintenance
102
7.4.6.
Checking combustion
The check on combustion is done by measuring the percentage of
O
/CO
in the flue gas discharge flue. To do this, proceed as follows:
2
2
1. Unscrew the plug of the flue gas measurement point.
2. Connect the flue gas analyser.
CAUTION
Ensure that the opening around the sensor is completely
sealed when taking measurements.
3. Set the boiler to full load. ¼ See chapter: "Setting the air/gas
T001581-A
ratio (Full load)", page 67. The boiler is now operating at full
load. Measure the percentage of CO
the checking values given.
4. Set the boiler to part load. ¼ See chapter: "Setting the air/gas
ratio (Part load)", page 69. The boiler is now operating on part
load. Measure the percentage of CO
the checking values given.
MCA 15 - MCA 25 MCA 25/28 MI
and compare this value with
2
and compare this value with
2
29/04/2010 - 300022146-001-B
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