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4.2 COMBUSTION PARAMETERS
Combustion parameters: measuring conditions of useful efficiency (flow temperature/return temperature= 80 / 60 °C), ambient temper-
ature reference = 15°C.
Victrix Zeus Superior 25
Gas type
G20
G31
Supply pressure
mbar (mm H
2
O)
20 (204)
31 (377)
Gas nozzle diameter
mm
5
5
Flue flow rate at D.H.W. nominal heat output
kg/h (g/s)
43 (12.08)
43 (11.81)
Flue flow rate at heating nominal heat output
kg/h (g/s)
35 (9.71)
33 (9.18)
Flue flow rate at min heat output
kg/h (g/s)
4 (1.16)
4 (1.18)
CO
2
to nominal Q.
%
8.8 (± 0,2)
10.3 (± 0,2)
CO
2
to ignition Q.
%
8.8 (± 0,2)
9.9 (± 0,2)
CO
2
to minimum Q.
%
8.8 (± 0,2)
9.9 (± 0,2)
CO with 0% O
2
at Nom./Min. Q.
ppm
155 / 5
215 / 6
NO
x
with 0% O
2
at Nom./Min. Q.
mg/kWh
31 / 21
53 / 23
Flue temperature at nominal output
°C
70
71
Flue temperature at minimum output
°C
60
53
Max air combustion temperature
°C
50
50
Intake / exhaust
available head with
Min
Intake / exhaust
available head with
Med
Intake / exhaust
available head with
Max
Pa
Pa
Pa
48
112
151
Victrix Zeus Superior 30
Gas type
G20
G31
Supply pressure
mbar (mm H
2
O)
20 (204)
31 (377)
Gas nozzle diameter
mm
5.7
5.7
Flue flow rate at D.H.W. nominal heat output
kg/h (g/s)
52 (14.43)
50 (13.86)
Flue flow rate at heating nominal heat output
kg/h (g/s)
49 (13.55)
47 (13.02)
Flue flow rate at min heat output
kg/h (g/s)
5 (1.38)
5 (1.35)
CO
2
to nominal Q.
%
8.8 (± 0,2)
10.5 (± 0,2)
CO
2
to ignition Q.
%
8.8 (± 0,2)
10.3 (± 0,2)
CO
2
to minimum Q.
%
8.8 (± 0,2)
10.3 (± 0,2)
CO with 0% O
2
at Nom./Min. Q.
ppm
134 / 3
233 / 3
NO
x
with 0% O
2
at Nom./Min. Q.
mg/kWh
22 / 15
41 / 25
Flue temperature at nominal output
°C
44
41
Flue temperature at minimum output
°C
47
42
Max air combustion temperature
°C
50
50
Intake / exhaust
available head with
Min
Intake / exhaust
available head with
Med
Intake / exhaust
available head with
Max
Pa
Pa
Pa
76
155
233