31
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
3.16 COMBUSTION PARAMETERS.
G20
G30
G31
Gas nozzle diameter
mm
1.35
0.79
0.79
supply pressure
mbar (mm H
2
O)
20 (204)
29 (296)
37 (377)
Flue flow rate at nominal heat output
kg/h
52
53
55
Flue flow rate at min heat output
kg/h
52
53
54
CO
2
at Nom./Min. Q.
%
7.00 / 1.95
8.00 / 2.24
7.66 / 2.20
CO with 0% O
2
at Nom./Min. Q.
ppm
72 / 200
95 / 147
63 / 137
NO
X
with 0% O
2
at Nom./Min. Q.
ppm
55 / 34
77 / 30
78 / 30
Flue temperature at nominal output
°C
111
112
109
Flue temperature at minimum output
°C
96
93
95
Intake / exhaust available head
Pa
91
- The data relevant to domestic hot water per-
formance refers to a dynamic inlet pressure
of 2 bar and an inlet temperature of 15°C; the
values are measured directly at the boiler outlet
considering that to obtain the data declared
mixing with cold water is necessary.
3.17 TECHNICAL DATA.
Nominal heat input
kW (kcal/h)
25.5 (21914)
Minimum DHW heat input
kW (kcal/h)
7.6 (6578)
CH minimum heat input
kW (kcal/h)
12.8 (11045)
Nominal heat output (useful)
kW (kcal/h)
23.8 (20468)
DHW minimum heat output (useful)
kW (kcal/h)
6.8 (5848)
CH minimum heat output (useful)
kW (kcal/h)
11.5 (9847)
Efficiency at nominal heat output
%
93.4
Efficiency at 30% nominal heat output load
%
90.2
Heat loss at case with burner On/Off
%
0.6 / 0.46
Heat loss at flue with burner On/Off
%
6.0 / 0.03
Central heating circuit max. operating pressure
bar
3
Maximum central heating temperature
°C
90
Adjustable central heating temperature
°C
35-80
System expansion vessel total volume
l
4.2
Heating expansion vessel pre-charge
bar
1.0
Appliance water content
l
0.7
Head available with 1000 l/h flow rate
kPa (m H
2
O)
30.4 (3.1)
Domestic hot water adjustable temperature
°C
35 - 55
Domestic hot water circuit min. pressure (dynamic)
bar
0.3
Domestic hot water circuit max. operating pressure
bar
10
Minimum D.H.W. flow rate
l/min
1.7
Flow rate capacity in continuous duty (∆T 30°C)
l/min
11.1
Weight of full boiler
kg
29.7
Weight of empty boiler
kg
29.0
Electrical connection
V/Hz
230/50
Nominal power absorption
A
0.61
Installed electric power
W
120
Pump absorbed power
W
85
Fan power absorbed power
W
34
Equipment electrical system protection
-
IPX5D
NO
X
class
-
3
Weighted NO
X
mg/kWh
139
Weighted CO
mg/kWh
61
Type of appliance
C12 /C32 / C42 / C52 / C62 / C82 / B22 / B32
Category
II 2H3+
- The max. sound level emitted during boiler
operation is < 55dBA. The sound level value is
referred to semianechoic chamber tests with
boiler operating at max. heat output, with
extension of flue gas exhaust system according
to product standards.
Combustion parameters: measuring conditions
of useful efficiency (flow temperature/return
temperature= 80 / 60 °C), ambient temperature
reference = 15°C.
Summary of Contents for EOLO STAR 24 5E
Page 1: ...EOLO STAR 24 5E IE Instructions and warning book 1 040471ENG ...
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