39
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
3.19 COMBUSTION PARAMETERS.
G20
G30
G31
Supply pressure
mbar (mmH
2
O)
20 (204)
29 (296)
37 (377)
Hercules Condensing 26 3 ErP
Gas nozzle diameter
mm
5.70
4.10
4.10
Flue flow rate at nominal heat output
kg/h
43
39
43
Flue flow rate at min heat output
kg/h
8
7
8
CO
2
at Q. Nom./Min.
%
9.40 / 8.90
12.00 / 11.80
10.60 / 10.20
CO with 0% O
2
at Nom./Min. Q. Nom./Min.
ppm
200 / 7
670 / 11
270 / 7
NO
X
at 0% of O
2
at Q. Nom./Min.
mg/kWh
57 / 25
182 / 86
69 / 41
Flue temperature at nominal output
°C
78
86
79
Flue temperature at minimum output
°C
73
82
75
Hercules Condensing 32 3 ErP
Gas nozzle diameter
mm
WITHOUT
6.00
6.00
Flue flow rate at nominal heat output
kg/h
52
47
53
Flue flow rate at min heat output
kg/h
12
11
12
CO
2
at Q. Nom./Min.
%
9.40 / 8.90
12.30 / 11.90
10.50 / 10.30
CO with 0% O
2
at Nom./Min. Q. Nom./Min.
ppm
206 / 9
640 / 8
190 / 8
NO
X
at 0% of O
2
at Q. Nom./Min.
mg/kWh
83 / 43
276 / 89
99 / 54
Flue temperature at nominal output
°C
73
82
74
Flue temperature at minimum output
°C
64
72
66
Combustion parameters: measuring conditions
of useful efficiency (flow temperature/return
temperature= 80/60 °C), ambient temperature
reference = 15°C.
