7.4.6.
Checking combustion
The check on combustion is done by measuring the percentage of
O
2
/CO
2
in the flue gas discharge flue. To do this, proceed as follows:
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
ratio (Full load)", page 67. The boiler is now operating at full
load. Measure the percentage of CO
2
and compare this value with
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
2
and compare this value with
the checking values given.
T001581-A
7. Checking and maintenance
MCA 15 - MCA 25 MCA 25/28 MI
102
29/04/2010 - 300022146-001-B
