Positioning Of The Ignition And Flame Sensing Electrode; Check Of Combustion Parameters; Activating The Flue-Sweeper Function - Baxi Luna 3 System HT Gebrauchsanleitung Für Den Verbraucher Und Den Installateur

19. posItIonIng of the IgnItIon anD flame sensIng eleCtroDe

Figure 16

20. CheCk of CombustIon parameters

flue gas
Figure 17
WarnInG: close the flue adaptor test point with the plug
after combustion test.

21. aCtIvatIng the flue-sweeper funCtIon

Figure 18
InstructIons pertaInInG to the InstaLLer
combustion air
gasket
020429_0200
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
hygienic 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
dioxyde (CO );
2
• concentration of carbon monoxyde (CO).
The comburant air temperature must be measured at the
test point connected to the air inlet duct.
To facilitate measurement of the combustion efficiency and
improve the cleanliness of the production products, the
flue-sweeper function can be activated by proceeding as
described below:
1) press the (2-3) together until the pointer " " appears
on the display alongside the
but no more than 6 seconds). In these conditions, the
boiler operates at the maximum heat output set for central
heating.
2) press either of the
58
) or, alternatively, of carbon
2
symbol (about 3 seconds
buttons to exit the function
926.423.1 - GB