Setting The Gas/Air Ratio (Full Load) - DeDietrich C 230 ECO Installation And Service Manual

5.4.3

Setting the gas/air ratio (Full load)

C230-170 / C230-210
1. Set the boiler to the high stage.
2. Press key , the symbol
3. Use keys + and - to switch from
4. Measure the percentage of CO
the table below.
5. If the percentage of CO
2
percentage of CO using the screw under the coupling on coil V2
2
on the gas valve unit (setting possible only for versions C 230-
170 ECO and C 230-210 ECO) (see drawing above).
6. Check the flame via the flame inspection window. It must not go
out. The surface of the burner must not be red hot.
Boiler type
C 230-85 ECO
C 230-130 ECO
C 230-170 ECO
C 230-210 ECO
(1) For conversion to propane, refer to the instructions
provided with the conversion kit.
03/10/2012 - 300015171-001-01
CO
3
is displayed.
to .
and compare it with the value in
2
is different from these values, set the
O /CO checking and setting value (Open air box)
2 2
Fan rotation speed (rpm)
Full load
Gas H Gas L
5100 5400
6400 6500
4800 4800
5700 5800
1
2
2
: Maximum output
: Minimum output
In the display area:
EMISSION MES. 88.8°:Boiler temperature
EMISSION MES. 8888: Fan speed
EMISSION MES. 88.8uA: Ionization current
Gas Lw Propane
5100 (1)
6400 (1)
4800 (1)
- (1)
C 230 ECO
T000239-C
CO for Gas H Gas L
2
and Gas Lw
%
8.8 ±0.3
8.8 ±0.3
8.8 ±0.3
8.8 ±0.3
CO for Propane
2
%
(1)
(1)
(1)
(1)
45