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4 Technical data
Boilers
Nominal useful output 40/30 (Heating mode) (min./max)
Nominal useful output 80/60 (min./max)
Nominal useful output (DHW mode) (min./max)
Nominal input power (heating and DHW modes)
Minimum useful output 40/30 (Heating mode)
Minimum input power (heating and DHW modes)
Gas flow rate à Pn (à 15°C - 1013 mbar):
Natural gas H
Natural gas L
Propane
PCI efficiency, Load and water temperature efficiency:
100% Nominal power, Average temperature: 70 °C
100% Nominal power, Return temperature: 30 °C
30% Nominal power, Return temperature: 30 °C
Maximum temperature (Safety thermostat cut-off)
Losses when off (∆T = 30 °C)
Losses through the outer casing
Water capacity
Weight without water, without mounting frame, without cladding
Nominal water flow (∆T = 20 K)
Rated net head (∆T = 20 K)
Flow temperature
Maximum pressure
Expansion chamber
Initial pressure of the expansion tank
Minimum operating pressure
Instruction set outlet temperature
Specific hot water flow (∆T = 30 K)
Nominal max cold water pressure
Minimum pressure (11 l/min)
Connecting
Mass flue gas flow rate (min./max)
Flue gas temperature 80/60
Pressure available at the flue gas nozzle
Condensation water pH 50/30
Power supply voltage (50 Hz)
Power consumption
Electrical output circulating pump
Auxiliary electrical output (Nominal power, ex circulating pump)
Insulation class
1 mbar = 100 Pa - 1 daPa ~ 1 mm H
Cold water temperature: 10 °C; Domestic hot water temperature:
85 °C
08/06/06 - 300008460-001-B
Specifications of the heating circuit
Domestic hot water specifications
Combustion products circuit
Electrical specifications
O
2
MCR 24, 24/28 MI, 30/35 MI, 34/39 MI
MCR 24
MCR 24/28MI
kW
6.3/25
kW
5.5/23.6
kW
-
kW
24/24
kW
6.3
kW
5.8
kW
24
3
2.4
m
/h
2.8
3
m
/h
1.9
Kg/h
%
98.3
%
104.4
%
108.7
°C
110
W
30
%
1.1
l
1.7
kg
29
l/h
1.03
mbar
>200
°C
75
bar
3
l
8
bar
1
bar
0.8
°C
55
l/min
-
bar
8
bar
-
diameter
60/100
(mm)
Kg/h
10/40
°C
78
Pa
50
-
1-7
V
230
W
115
W
90
W
25
IPX4D
MCR 30/35MI
6.3/25
6.6/31.3
5.5/23.6
5.7/29.5
27.4
34.3
24/28
30/35
6.3
6.6
5.8
6.1
24
35
2.4
3.5
2.8
4.1
1.9
2.7
98.3
98.2
104.4
104.4
108.7
109.7
110
110
30
29
1.1
0.9
1.8
2
30.5
32
1.03
1.29
>200
>200
75
75
3
3
8
8
1
1
0.8
0.8
55
55
14
16
8
8
1.4
0.4
60/100
60/100
10/47
10/59
78
74
100
100
1-7
1-7
230
230
115
150
90
125
25
25
IPX4D
IPX4D
MCR 34/39MI
6.8/35.5
5.9/33.3
38.2
34/39
6.8
6.3
39
3.9
4.5
3.0
98
104.4
110.5
110
28
0.5
2.2
31.5
1.47
>200
75
3
-
1
0.8
55
19
8
0.4
60/100
10/62
71.5
140
1-7
230
180
135
45
IPX4D
7
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