The flue gas analyser must have a minimum accuracy of ±0.25% O
2
/
CO
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
/CO
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
/CO
2
at full load
1. Set the boiler to full load.
2. Measure the percentage of O
2
/CO
2
in the flue gases.
3. Compare the measured value with the checking values in the table.
Tab.48 Checking/setting values for O
2
/CO
2
at full load for G20 (H
gas)
Values at full load for G20 (H gas)
O
2
CO
2
Gas 320 Ace 285
4.3 – 4.8
Gas 320 Ace 355
4.3 – 4.8
Gas 320 Ace 430
4.3 – 4.8
Gas 320 Ace 500
4.3 – 4.8
Gas 320 Ace 575
4.3 – 4.8
Gas 320 Ace 650
4.3 – 4.8
Gas 620 Ace 570
4.3 – 4.8
Gas 620 Ace 710
4.3 – 4.8
Gas 620 Ace 860
4.3 – 4.8
Gas 620 Ace 1000
4.3 – 4.8
Gas 620 Ace 1150
4.3 – 4.8
Gas 620 Ace 1300
4.3 – 4.8
(1) Nominal value
(2) Nominal value
4. If the measured value is outside of the values given in the table,
correct the gas/air ratio.
Fig.74
Insert the probe for the flue gas
analyser
AD-3001424-01
2
1
Fig.75
Full load test
AD-3000941-03
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11:20
A
B
7 Commissioning
48
7734324 - v.03 - 29092020
