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MCR 24 MCR 24/28 MI MCR 30/35 MI MCR 34/39 MI
7
Technical specifications
7.1
Technical specifications
Boiler type
Heating mode
Domestic hot water mode
Gas flow rate at nominal
output (15 °C -
1013 mbar)
LHV efficiency
HHV efficiency
Maximum temperature (Safety thermostat cut-off)
Stand-by losses (ΔT = 30 °C)
Losses through the outer casing
Water content
Weight empty, without mounting frame, without front cover kg
Heating circuit
Nominal water flow (ΔT = 20 K)
Manometric height (ΔT = 20 K)
Flow temperature
Maximum pressure
Expansion vessel
Initial pressure of the expansion vessel
Minimum operating pressure
Domestic hot water circuit
Instruction set outlet temperature
(1) 1 mbar = 100 Pa, 1 daPa = 1 mmWG
(2) Cold water inlet temperature: 10 °C
160513 - 300015874-001-01
Nominal useful output 40/30
(min / max)
Nominal useful output 80/60
(min / max)
Nominal input power
Minimum input power
Nominal useful output
Nominal input power
Minimum input power
Natural gas H (G20)
Natural gas L (G25)
Propane (G31)
100% of nominal output and
average water temperature in
the boiler of 70°C
100% of nominal output and
return temperature of 30°C
30% of nominal output and
return temperature of 30°C
100% of nominal output and
average water temperature in
the boiler of 70°C
100% of nominal output and
return temperature of 30°C
30% of nominal output and
return temperature of 30°C
MCR 24
kW
6.3 /25
kW
5.5 / 23.6 5.5 / 23.6
kW
24
kW
5.8
kW
-
kW
24
kW
5.8
3
2.4
m
/h
3
2.8
m
/h
Kg/h
1.9
%
98.3
%
104.4
%
108.7
%
88.5
%
94
%
97.9
°C
110
W
30
%
1.1
litres
1.7
29
3
1.03
m
/h
(1)
> 250
mbar
°C
75/85
bar
3
litres
8
bar
1
bar
0.8
°C
55
7. Technical specifications
MCR 24/28
MCR 30/35
MI
MI
6.3 /25
6.6 /31.3
5.7 / 29.5
24/28
30/35
5.8
6.1
27.4
34.3
24/28
30/35
5.8
6.1
2.4
3.5
2.8
4.1
1.9
2.7
98.3
98.2
104.4
104.4
108.7
109.7
88.5
88.4
94
94
97.9
98.8
110
110
30
29
1.1
0.9
1.8
2
30.5
32
1.03
1.29
> 250
> 200
75/85
75
3
3
8
8
1
1
0.8
0.8
55
55
MCR 34/39
MI
6.8 /35.5
5.9 / 33.3
34/39
6.3
38.2
34/39
6.3
3.9
4.5
3.0
98
104.4
110.5
88.2
94
99.5
110
28
0.5
2.2
31.5
1.47
> 200
75
3
-
1
0.8
55
28
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