Remeha Avanta Plus

Remeha Avanta Plus
• Unscrew the flue gas sampling cap and connect the flue gas
analyser.
• Set boiler to full load: Press the [enter]- key, keep it pressed
and also press the [+]-key until h3 appears in the display;
full load has been set.
• Once the unit has reached the full-load fan speed, measure
the O 2
/CO 2
-percentage and compare this to the values in
table 05.
• If the values are not in accordance with the table then correct
the gas /air ratio controls using the adjusting screw A on
the gas block.
• If the value is too low turn the screw A anti clockwise; this
increases the gas rate – if the value is too high turn the
screw clockwise which decreases the gas rate.
• Check the flame through the sight glass which should be
stable with a regular blue distribution.
Only make small adjustments of the adjusting screw, maximum
1/8 turns when setting O 2
/CO 2
Ensure that the analysing probe has a gas tight seal in the
sampling point with the probe end in the centre of the flue
duct.
After setting the O 2
/CO 2
level to the right value, the maximum
CO level should not exceed 200 ppm for natural gas or not
exceed 300 ppm for LPG (propane).
5. Checking/setting the gas/air ratio at part load
B
B
R
Checking/setting values O 2
/CO 2
for natural gas (G20)
Fan speed (rpm) O 2
CO 2
Boiler type Part load l3 *) % %
18s approx. 1300
24s approx. 1300
30s approx. 1300
24c approx. 1300
28c approx. 1300
35c approx. 1300
39c approx. 1300
5.2
± 0,1
5.2
± 0,1
5.2
± 0,1
5.2
± 0,1
5.2
± 0,1
5.2
± 0,1
5.2
± 0,1
8.8
± 0,1
8.8
± 0,1
8.8
± 0,1
8.8
± 0,1
8.8
± 0,1
8.8
± 0,1
8.8
± 0,1
fi g. 40
Check the gas/air ratio control – set to part load – gas/air
ratio adjustment B on gas block
table 07
Checking/setting values part load CO 2
and O 2
(front
panel not fi tted)
112952.LT.GB.W7H.043
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