30
Remeha Avanta 18v
59970LTGBW7H018a
B
R
B
•
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 04.
•
If the values are not in accordance with the table then cor-
rect 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
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.
5. Checking/setting the gas/air ratio at part load
Setting values O
2
/CO
2
for natural gas
Boiler type
Fan speed (rpm)
O
2
CO
2
Part load
l3
*)
%
%
18v
Approx. 1300
5,2
± 0,1
9.0
± 0,1
table 06 Setting values part load CO
2
and O
2
(front panel not
fitted)
Setting values O
2
/CO
2
for LPG (propane)
Boiler type
Fan speed (rpm)
O
2
CO
2
Part load
l3
*)
%
%
18v
Approx. 2000
5.1
± 0.1
10.5
± 0.1
table 07 Setting values part load CO
2
and O
2
(front panel not
fitted)
*) On forced part load, the 2
nd
digit indicates the operating
code.
59970LTGBW7H018
