Positioning Of The Ignition And Flame Sensing Electrode; Check Of Combustion Parameters - Baxi PRIME HT 240 Installers And Users Instructions

19. POSITIONING OF THE IGNITION AND FLAME SENSING ELECTRODE
Figure 23

20. CHECK OF COMBUSTION PARAMETERS

To measure combustion performance and hygiene levels of combustion products, the forced draught boiler models are
equipped with two test points on the tapered coupling specifically designed for this purpose.
One of the two test points is connected to the exhaust flue duct to allow measurements of the combustion products hy-
gienic standards and combustion efficiency.
The second test point is connected to the comburant air inlet duct to check possible combustion products circulation in
case of coaxial ducts.
The exhaust flue duct test point allows measurements of the following:
• combustion products temperature;
• concentration of oxygen (O
• concentration of carbon monoxyde (CO).
The comburant air temperature must be measured at the test point connected to the air inlet duct.
Important: Plug all the measurement points on completion of checks.
Figure 24
) or, alternatively, of carbon dioxyde (CO
2
flue
INSTRUCTIONS FOR THE INSTALLER
);
2
combustion air
seal
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