Checking Combustion - DeDietrich MODULENS O AFC 18 Installation And Service Manual

Oil-fired condensing boilers
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AFC 18 - AFC 24 - AFC 30
Factory setting values
Burner model - Boiler power Output
F10E2-5.30 - 30 kW boilers
(1) Fuel oil pressure
(2) Fan rotation speed
09/07/2015 - 300026439-07
P (bar (MPa))
E Minimum output
7 (0,7)
Z Start-up output
15 (1,5)
A Maximum output 22 (2,2)
6.4.3.
The check on combustion is done by measuring the percentage of
CO
1. Unscrew the plug of the flue gas measurement point.
2. Connect the flue gas analyser.
3. Measure the CO
4. Fill in the table below with the values measured.
Measured values P(bar) U(%) CO
Minimum output
Start-up output
Maximum output
5. If the CO
C003280-B
(1)
U (%)
Indicative setting
29
65
91

Checking combustion

in the flue gas discharge flue. To do this, proceed as follows:
2
CAUTION
Ensure that the opening around the sensor is completely
sealed when taking measurements.
level in the flue gases.
2
level does not match the required value, correct the ratio
2
of the fan rotation speed U.
¼ See chapter: "Setting the burner's 3 operating outputs",
page 100
6. Commissioning
CO
(%) Head pressure
2
(2)
(mbar)
Indicative setting
3,6
12,5
6,2
13,2
8,6
13,2
(%)
2
101

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