32
R2KA 28 /20 - RAD - ING - Manuale - 1806.1_SK.2
2 Ve
rific
a e ta
ra
tu
ra
del
va
lor
e di CO
2_
M
IAH
4_
R2
K
A
_.20_f
irm.
L18
1E
_E
N
2. FIRST START-UP
SUPPOR
T
C
ENTRE
2.1.3. CO2 VALUE CHECK AND
CALIBRATION
WARNING
The CO
2
value should be checked with
the casing assembled, while the gas valve should be
adjusted with the casing open.
To check and calibrate the CO
2
value to minimum
and maximum heating power proceed as follows:
FOR MINIMUM HEATING POWER
› Activate the chimney sweeper function (F07) by
keeping pressed the key ‘
’ for 7 seconds (the
maximum time of this function is 15 minutes).
› Insert the fumes analyser probe in the suitable
‘PF’ fumes inlet (fig. 1), then make sure that
the CO
2
value complies with the requirements
indicated in chapter “Technical data”, otherwise
unscrew the protection screw ‘A’ (fig. 2) and
adjust using a 4 Allen wrench the screw ‘2’ (fig.
2) of the Off-Set adjuster. To increase the CO
2
value, turn the screw clockwise and vice-versa
if you want to decrease it. Once completed the
adjustment, tighten the protection screw ‘A’ (fig.
2) on the Off-Set adjuster.
FOR MAXIMUM HEATING POWER
› Press the key ‘
’ of the heating temperature
setting
, to adjust the maximum heating
power.
› Make sure that the CO
2
value complies with the
indications in “Technical data”, otherwise adjust
using screw ‘1’ (fig. 2) of the gas flow adjuster.
To increase the CO
2
value, turn the screw anti-
clockwise and vice-versa if you want to decrease
it.
› After each adjustment variation on screw ‘1’
(fig. 2) of the gas flow adjuster you have to wait
for the boiler to stabilize itself to the set value
(about 30 seconds).
› Press the key ‘
’ of the heating temperature
setting
and make sure that the CO
2
value did
not change to minimum, if changed repeat the
calibration described in the previous paragraph.
› Deactivate the chimney sweeper function by
selecting the OFF mode by using the key ‘
’.
PF
1
2
A
+
+
fig. 1
fig. 2
