38
STMaE4E and 07/11
MAIOR EOLO 4 E
Technical Documentation
Technical Documentation
Technical Data
MAIOR EOLO 24 MAIOR EOLO 28 MAIOR EOLO 32
Nominal heat input
kW (kcal/h)
25.8 (22194)
29.7 (25536)
34.2 (29433)
DHW minimum heat input
kW (kcal/h)
8.1 (6968)
9.9 (8480)
12.2 (10524)
CH minimum heat input
kW (kcal/h)
10.6 (9094)
12.7 (10902)
14.8 (12710)
Nominal heat output (useful)
kW (kcal/h)
24.0 (20640)
28.0 (24080)
32.0 (27520)
DHW minimum heat output (useful)
kW (kcal/h)
7.0 (6020)
8.5 (7310)
10.5 (9030)
CH minimum heat output (useful)
kW (kcal/h)
9.3 (7998)
11.2 (9632)
12.9 (11087)
Efficiency at nominal heat output
%
93.0
94.3
93.5
Efficiency at 30% nominal heat output load
%
90.5
91.5
90.7
Heat loss at case with burner On/Off
%
0.50 / 0.75
0.10 / 0.53
0.70 / 0.50
Heat loss at flue with burner On/Off
%
6.0 / 0.02
5.70 / 0.06
5.80 / 0.04
Central heating circuit max. operating pressure
bar
3.0
3.0
3.0
Central heating circuit max. operating temperature
°C
90
90
90
Adjustable central heating temperature
°C
35 - 85
35 -85
35 - 85
System expansion vessel total volume
l
6.8
6.8
6.8
Heating expansion tank pre-charge
bar
1.0
1.0
1.0
Water content in generator
l
5.0
5.0
5.0
Total head available with 1000 l/h flow rate
kPa (m H
2
O)
26.85 (2.74)
38.42 (3.92)
49.42 (5.04)
Hot water production useful heat output
kW (kcal/h)
24.0 (20640)
28.0 (24080)
32.0 (27520)
Domestic hot water adjustable temperature
°C
30 - 60
30 - 60
30 -60
Domestic hot water circuit flow limiter at 2 bar
l/min
7.1
9.5
11.8
Min. pressure (dynamic) domestic hot water circuit
bar
0.3
0.3
0.3
Domestic hot water circuit max. working pressure
bar
10.0
10.0
10.0
Minimum D.H.W. flow rate
l/min
1.5
1.5
1.5
Specific flow rate (∆T 30°C)
l/min
11.9
13.8
16.1
Drawing capacity in continuous duty (∆T 30°C)
l/min
11.8
13.7
16.1
Weight of full boiler
kg
46.5
46.9
47.4
Weight of empty boiler
kg
41.5
41.9
42.4
Electrical connection
V/Hz
230 / 50
230 / 50
230 / 50
Power input
A
0.75
0.85
0.95
Installed electric power
W
140
155
175
Pump consumption
W
86
84
106
Fan consumption
W
29
46
52
Equipment electrical system protection
-
IPX5D
IPX5D
IPX5D
NO
X
class
-
3
3
3
Weighted NO
X
mg/kWh
128
107
102
Weighted CO
mg/kWh
84
92
63
Type of appliance
C12 /C32 / C42 / C52 / C82 / B22p / B32
Category
II2H3+
- Flue temperature values refer to an air inlet temperature of
15°C.
- The data relevant to domestic hot water performance 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.
- 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.
