33
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
- Flue gas temperature values refer to an air inlet
temperature of 15°C.
- The data relevant to domestic hot water per-
formance refer 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.
3.20 TECHNICAL DATA.
Maior Eolo 24 4E
Maior Eolo 28 4E
Maior Eolo 32 4E
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
Expansion vessel factory-set pressure
bar
1,0
1,0
1,0
Water content in generator
l
5,0
5,0
5,0
Water content in
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 / C62 / C82 / B22p / B32
Category
II2H3+
