DeDietrich C 340 280, Installation And User Manual

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Code Displayed text Description 560 700 860 1000 1140 1300
GP008 Fan RPM Min Minimum fan speed during Central
H Domestic Hot Water
mode
1900 1850 1300 1250 1400 1350
GP009 Fan RPM Start Fan speed at appliance start 2500 2500 1300 1400 1500 1600
2. Check the setting of the gas/air ratio.
7.2.3 Checking and setting the gas/air ratio
For boiler C 640, apply the instructions to each boiler module. Make sure
that the other boiler module is out of operation during this check and/or
setting.
The flue gas analyser must have a minimum accuracy of ±0.25% O
2
.
1. Unscrew the cap from the flue gas measuring point.
2. Insert the probe for the flue gas analyser into the measurement
opening.
Warning
Fully seal the opening around the sensor during measurement.
3. Measure the percentage of O
2
in the flue gases. Take measurements
at full load and at part load.
Performing the full load test
1. Select the tile [ ].
The Change load test mode menu appears.
2. Select the test Medium power.
A Change load test mode
B Medium power
The full load test starts. The selected load test mode is shown in the
menu and the icon appears in the top right of the screen.
3. Check the load test settings and adjust if necessary.
Only the parameters shown in bold can be changed.
Checking/setting values for O
2
at full load
1. Set the boiler to full load.
2. Measure the percentage of O
2
in the flue gases.
3. Compare the measured value with the checking values in the table.
Tab.52 Checking/setting values for O
2
at full load for G20 (H gas)
Values at full load for G20 (H gas)
O
2
(%)
(1)
C 340 280 4.3 – 4.8
(1)
C 340 350 4.3 – 4.8
(1)
C 340 430 4.3 – 4.8
(1)
C 340 500 4.3 – 4.8
(1)
C 340 570 4.3 – 4.8
(1)
C 340 650 4.3 – 4.8
(1)
C 640 560 4.3 – 4.8
(1)
Fig.69 Insert the probe for the flue gas
analyser
AD-3001424-01
2 1
Fig.70 Full load test
AD-3000941-03
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A
B
7 Commissioning
7762666 - v.02 - 29092020 C 340 / C 640 61