Positioning Of The Ignition And Flame Sensing Electrode; Check Of Combustion Parameters - Baxi Power HT Series Installation, Operation And Maintenance Manual

16. POSITIONING OF THE IGNITION AND FLAME SENSING ELECTRODE

Figure 14

17. CHECK OF COMBUSTION PARAMETERS

Drill a hole in the flue at a distance from the boiler equivalent to twice the diameter of the flue to measure
combustion efficiency and combustion flue composition in accordance with the rules in force. Use this hole
to measure the following parameters:
• Combustion flue temperature
• Oxygen (O ) or carbon dioxide (CO
2
• 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 first started up, and must then be
closed to ensure that the flue remains properly sealed during normal operation.
Important! Close the flue test point
hole on completion of measurements.
Figure 15
ISTRUCTIONS PERTAINING TO THE INSTALLER
) concentration.
2
BOILER FLUE TEST POINT
HOLE
104
910.001.1 - EN