104
910.001.1 - EN
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
combustionefciencyandcombustionuecompositioninaccordancewiththerulesinforce.Usethishole
to measure the following parameters:
• Combustionuetemperature
• Oxygen(O
2
) or carbon dioxide (CO
2
) concentration.
• Carbonmonoxide(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
16. POSITIONING OF THE IGNITION AND FLAME SENSING ELECTRODE
Figure 14
0503_2204
Figure 15
Important! Close the flue test point
hole on completion of measurements.
BOILER FLUE TEST POINT
HOLE
0811_1703 /
CT_0782