Settings for marathon
®
burners with mechanical linkage
dreizler A 3001 E - 18.12.2015 | A 2070 - 1.12 | EN - 09.11.2012
41
After you now have set the two end settings above, you will now measure three intermediate settings,
beginning with MIN load.
NOTICE:
The CO
2
content is slightly decreased from 10.5% to 8% during switch from MAX to MIN. This is expected
at the control ratio 1:5, as mixed energy is decreased.
Fig. 12-5 Gas damper with natural gas
1
CO
2
with natural gas:
1.
MIN load - 20%:
1.1
Burner load:
approx. 20 - 30%
1.2
Burner head pres-
sure:
5 - 10.0% of end value MAX.
1.3
CO
2
content:
7,5 - 9,0%
1.4
CO content:
max. 50ppm (=0.005%)
2.
Partial load - 30%:
2.1
Burner load:
30%
2.2
Burner head pres-
sure:
25% of MAX value
2.3
CO
2
content:
8,0 - 9,0%
2.4
CO content:
0%
3.
Partial load - 50%:
3.1
Burner load:
50%
3.2
Burner head pres-
sure:
25% of MAX value
3.3
CO
2
content:
9,0 - 10,5%
3.4
CO content:
0%
4.
Partial load - 75%:
4.1
Burner load:
75%
4.2
Burner head pres-
sure:
50% of MAX value
4.3
CO
2
content:
9,5 - 10,5%
4.4
CO content:
0%
5.
Full load:
5.1
Burner load:
100%
5.2
Burner head pres-
sure:
100% of MAX value
5.3
CO
2
content:
10.0 - 10.5% (not higher)
5.4
CO content:
0%