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STZM@ ed 05/04 ZEUS Maior @
Technical Documentation
Technical Documentation
ZEUS 24 Maior @ technical data.
- e flue temperature values refer to an air inlet temperature
of 15°C.
- Data relative to d.h.w. performance refer to a dynamic inlet
pressure of 2 bar and an inlet temperature of 15°C; these
values are measured at boiler outlet considering that to find
these declared values it is necessary to mix with cold water.
- Maximum sound power emitted when the boiler is working
is < 55dBA. is measurement refers to tests in a semi-ane-
choic room with the boiler working at full power and with
the extension of the flue accessories complying with product
standards.
Nominal heat input
Minimum heat input
Useful thermal power
Minimum thermal power (utile)
Efficiency at 100%
Efficiency at 30% of load
Outer casing losses with burner On/O.
Stack losses with burner On/O.
kW (kcal/h)
kW (kcal/h)
kW (kcal/h)
kW (kcal/h)
%
%
%
%
30.3 (26030)
12.2 (10466)
27.9 (24000)
10.5 (9000)
92.2
89.8
1.10 / 0.85
6.70 / 0.06
G20 G30 G31
Gas nozzle diameter
Supply pressure
mm
mbar (mm H
2
O)
1.30
20 (204)
0.75
29 (296)
0.75
37 (377)
Max. central heating circuit pressure
Maximum heating temperature
C.H. temperature adjustment
Total system expansion tank volume
System expansion tank pre-load
Total d.h.w. expansion tank volume
D.h.w. expansion tank pre-load
Appliance water content
Available head with 1000 l/h flow rate
D.H.W. useful thermal power
D.H.W. temperature adjustment
D.H.W. flow limiter
Min. pressure for nominal flow rate
Minimum dynamic pressure d.h.w. circuit
Max. d.h.w. circuit pressure
Specific flow rate (∆T 30°C)
Flow rate for continuous service (∆T 30°C)
Boiler weight full
Boiler weight empty
bar
°C
°C
l
bar
l
bar
l
kPa (m H
2
O)
kW (kcal/h)
°C
l/min
bar
bar
bar
l/min
l/min
kg
kg
3
90
38 - 85
7.1
1.0
2.0
3.5
4
23.03 (2.35)
27.9 (24000)
20 - 60
12
1.5
0.1
8
16.8
13.9
132.5
74
Electrical connection
Nominal power draw
Electric power installed
Circulator power draw
Fan power draw
Electrical insulation degree
V/Hz
A
W
W
W
-
230/50
0.76
155
90
35
IPX4D
G20 G30 G31
Fumes flow rate at max heat output
Fumes flow rate at min heat output
CO
2
at Q. Nom./Min.
CO at 0% of O
2
at Q. Nom./Min.
NO
X
at 0% of O
2
at Q. Nom./Min.
Exhaust flue temperature at max heat output
Exhaust flue temperature at min heat output
kg/h
kg/h
%
ppm
ppm
°C
°C
67
71
6.5 / 2.3
64 / 104
150 / 83
115
85
69
79
7.2 / 2.4
89 / 112
240 / 108
117
83
71
79
7.0 / 2.4
60 / 130
201 / 102
120
92
NO
X
class
NO
X
weighted
CO weighted
-
mg/kWh
mg/kWh
2
194
76
Appliance type C12 /C32 / C42 / C52 / B22
Category II2H3+
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