MURELLE HM 25 30 35 25 T 35 T
Heat output
Nominal (80-60°C) kW 23.9 28.9 34.1 23.9 34.1
Nominal (50-30°C) kW 26.2 31.4 37.2 26.2 37.2
Reduced
G20 (80-60°C) kW 2.3 2.7 3.2 2.3 3.2
Reduced
G20 (50-30°C) kW 2.6 3.1 3.7 2.6 3.7
Reduced
G31 (80-60°C) kW 3.7 3.7 5.5 3.7 5.5
Reduced
G31 (50-30°C) kW 4.3 4.2 6.4 4.3 6.4
Heat input
nominal kW 24.5 29.5 34.8 24.5 34.8
Heat input reduced
G20/G31 kW 2.45/4.0 2.95/4.0 3.48/6.0 2.45/4.0 3.48/6.0
Max/min useful yield (80-60°C) % 93.6/97.5 92.7/97.6 92.5/98.0 93.6/97.5 92.5/98.0
Max/min 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) % 108 107 107 10 8 107
Termal efficiency (CEE 92/42 directive)
Losses after shutdown to 50°C (EN 483)
W859090 85 90
Supply voltage
V-Hz 230-50 230-50 230-50 230-50 230-50
Adsorbed power consumption
W 90 90 105 90 105
Electrical protection grade
IP X4D X4D X4D X4D X4D
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
bar 3 3 3 3 3
Maximum temperature
°C 85 85 85 85 85
Capacity of the heating expansion vessel l 8 10 10 8 10
Pressure of the heating expansion vessel bar 1 1 1 1 1
D.H.W. setting range
°C 30/60 30/60 30/60 -- --
D.H.W. flow rate (EN 625)
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
bar 0.2/7.0 0.2/7.0 0.2/7.0 -- --
D.H.W. pressure min. nom. power
bar 0.5 0.65 0.8 -- --
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
kg/h 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
CE certification
n° 1312BU5407
Category
II2H3P
Type B
23P-53P/C13-33-43-53-83
NOx emission class
5 (< 30 mg/kWh)
Weight when empty
kg 40 42 44 39 41
Main burner nozzle
Quantity nozzles
n°222 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
Consumption at maximum/minimum flow rate
Maximum G20
m
3
/h 2.59 3.12 3.68 2.59 3.68
Minimum G20 m
3
/h 0.26 0.31 0.39 0.26 0.39
Maximum G31
kg/h 1.90 2.29 2.70 1.90 2.70
Minimum G31 kg/h 0.31 0.31 0.46 0.31 0.46
Gas supply pressure
G20/G31 mbar 20/37 20/37 20/37 20/37 20/37
1.3 TECHNICAL FEATURES
81
ES
PT
ENG