104
912.199.3 - GB
ISTRUCTIONS PERTAINING TO THE INSTALLER
Drill a hole in the ue at a distance from the boiler equivalent to twice the diameter of the ue to measure
combustion efciency and combustion ue composition in accordance with the rules in force. Use this hole to
measure the following parameters:
• Combustion ue temperature
• Oxygen (O
2
) or carbon dioxide (CO
2
) concentration.
• Carbon monoxide (CO) concentration.
Measure the temperature of combustion air near the air inlet to the boiler. The necessary hole must be made by
the technician responsible for the heating system when the system is rst started up, and must then be closed
to ensure that the ue remains properly sealed during normal operation.
17. CHECK OF COMBUSTION PARAMETERS
Figure 15
Important! Close the ue test point
hole on completion of measurements.
Figure 14
16. POSITIONING OF THE IGNITION AND FLAME SENSING ELECTRODE
0503_2204
BOILER FLUE TEST
POINT HOLE
0811_1703 / CT_0782