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

5.4.4

Setting the gas/air ratio (Low speed)

C230-85 / C230-130
1. Check the boiler on low stage.
2. Press key , the symbol
Press key -, the symbol
3. Measure the percentage of CO
the table below.
If the percentage of CO
percentage of CO using the setting screw on the pressure
2
regulator on the gas valve unit (see drawing above).
Boiler type
C 230-85 ECO
C 230-130 ECO
C 230-170 ECO
C 230-210 ECO
- Return the boiler to user level.
- Heat the installation to around 80°C and then stop the boiler.
- Vent the heating installation. Check the water pressure.
- The boiler is now operational.
- Set the boiler control system. Indicate the type of gas used.
- Start the boiler.
The boiler comes with a certain number of basic settings:
Burner regulation - Modulating, depending on the outlet
temperature
Maximum outlet temperature: 80 °C.
The various operating situations:
- Regulating function : The boiler output varies depending on the
flow temperature requested by the modulating regulator.
- ON/OFF operation : The boiler output varies between the minimum
and maximum values depending on the set flow temperature.
(1) For conversion to propane, refer to the instructions
provided with the conversion kit.
46
is displayed.
is displayed.
and compare it with the value in
2
differs from these values, set the
2
O /CO checking and setting value (Open air box)
2 2
Fan rotation speed (rpm)
Gas H/L
1200
1300
1000
1200
C230-170 / C230-210
4. Remove the measuring appliance and close the measurement
points.
5. Carry out a gas tightness check.
Low speed
Gas Lw Propane
1200
1300
1000
-
C 230 ECO
1
CO
2
2
CO for Gas H Gas
2
L and Gas Lw
%
(1) 9.3 ± 0.3
(1) 9.3 ± 0.3
(1) 9.3 ± 0.3
(1) 9.3 ± 0.3
03/10/2012 - 300015171-001-01
3
T001791-A
CO for Propane
2
%
(1)
(1)
(1)
(1)