MURELLE HM
25 ErP
30 ErP
35 ErP
25 T ErP
35 T ErP
Heat output
Nominal (80-60°C) (Pn max)
kW
23.9
28.9
34.1
23.9
34.1
Nominal (50-30°C) (Pn max)
kW
26.2
31.4
37.2
26.2
37.2
Reduced G20 (80-60°C) (Pn min)
kW
2.3
2.7
3.2
2.3
3.2
Reduced
G20 (50-30°C) (Pn min)
kW
2.6
3.1
3.7
2.6
3.7
Reduced G31 (80-60°C) (Pn min)
kW
3.7
3.7
5.5
3.7
5.5
Reduced G31 (50-30°C) (Pn min)
kW
4.3
4.2
6.4
4.3
6.4
Heat input (*)
Nominal (Qn max - Qnw max)
kW
24.5
29.5
34.8
24.5
34.8
Reduced G20/G31 (Qn min - Qnw min)
kW
2.45/4.0
2.95/4.0
3.48/6.0
2.45/4.0
3.48/6.0
Min./max. useful yield (80-60°C)
%
93.6/97.6
92.7/97.6
92.5/98.0
93.6/97.6
92.5/98.0
Min./max. useful yield (50-30°C)
%
107.3/107.0
105.3/106.4
106.3/106.8
107.3/107.0
106.3/106.8
Useful yield at 30% of the load (40-30°C)
%
108.1
107.2
108.5
108.1
108.5
Losses after shutdown to 50°C (EN 15502)
W
85
89
90
91
95
Supply voltage
V-Hz
230-50
230-50
230-50
230-50
230-50
Adsorbed power consumption (Qn max)
W
91
98
104
91
104
Adsorbed power consumption (Qn min)
W
59
60
61
59
61
Electrical protection grade
IP
X4D
X4D
X4D
X4D
X4D
Energy efficiency
Seasonal energy efficiency class of the heating system
A
A
A
A
A
Seasonal energy efficiency of the heating system
%
92
92
93
92
93
Sound power of the heating system
dB (A)
50
48
52
50
52
D.H.W. energy efficiency class
A
A
A
--
--
D.H.W. energy efficiency
%
86
86
85
--
--
D.H.W. load profile declared
XL
XL
XL
--
--
C.H. setting range
°C
20/80
20/80
20/80
20/80
20/80
Water content boiler
l
4.9
5.5
6.0
4.9
6.0
Maximum water head (PMS)
bar (kPa)
3 (294)
3 (294)
3 (294)
3 (294)
3 (294)
Maximum temperature (T max)
°C
85
85
85
85
85
Capacity/Pressure of the expansion vessel
l/bar (kPa)
8/1 (98)
10/1 (98)
10/1 (98)
8/1 (98)
10/1 (98)
D.H.W. setting range
°C
10/60
10/60
10/60
--
--
D.H.W. flow rate (EN 13203)
l/min
11.2
13.6
16.1
--
--
Continuous D.H.W. flow rate (∆t 30°C)
l/min
11.4
13.8
16.3
--
--
Minimum D.H.W. flow rate
l/min
2
2
2
--
--
D.H.W. pressure min./max. (PMW)
bar (kPa) 0.2/7.0 (19.6/686) 0.2/7.0 (19.6/686) 0.2/7.0 (19.6/686)
--
--
D.H.W. pressure min. nom. power
bar (kPa)
0.5 (49)
0.65 (63.7)
0.8 (78.4)
--
--
Exhaust fumes temperature at max flow rate (80-60°C)
°C
65
63.5
70
65
70
Exhaust fumes temperature at min. flow rate (80-60°C)
°C
51
53
60
51
60
Exhaust fumes temperature at max. flow rate (50-30°C)
°C
50
46
40
50
40
Exhaust fumes temperature at min. flow rate (50-30°C)
°C
37
40
33
37
33
Smokes flow min./max.
g/s
4/41
11/50
6/59
4/41
6/59
CO
2
at max./min. flow rate (G20)
%
8.9/9.3
8.4/9.3
8.4/9.3
8.9/9.3
8.4/9.3
CO
2
at max./min. flow rate (G31)
%
10.0/10.2
10.0/10.2
10.0/10.2
10.0/10.2
10.0/10.2
NOx measured (EN 15502-1:2015)
mg/kWh
21
22
21
21
21
PIN number
1312BU5407
Category
II2H3P
Type
B23P - B53P - C13 - C33 - C43 - C53 - C83
NOx emission class (EN 15502-1:2015)
6 (‹ 56 mg/kWh)
Weight when empty
kg
40
42
44
39
41
Main burner nozzle
Quantity nozzles
n°
2
2
2
2
2
G20 nozzle diameter diversified
ø
2.4/3.3
2.8/3.8
3.5/4.0
2.4/3.3
3.5/4.0
G31 nozzle diameter diversified
ø
1.9/2.6
2.2/2.9
2.8/3.0
1.9/2.6
2.8/3.0
Gas consumption at max./min. flow rate (G20)
m
3
/h
2.59/0.26
3.12/0.31
3.68/0.39
2.59/0.26
3.68/0.39
Gas consumption at max./min. flow rate (G31)
kg/h
1.90/0.31
2.29/0.31
2.70/0.46
1.90/0.31
2.70/0.46
Gas supply pressure (G20/G31)
mbar (kPa) 20/37 (1.96/3.63) 20/37 (1.96/3.63) 20/37 (1.96/3.63) 20/37 (1.96/3.63) 20/37 (1.96/3.63)
(*) Heat input of the heating system measured using lower heating value (LHV)
1.3
TECHNICAL FEATURES
81
ES
PT
ENG
