78
MURELLE HE 25 ErP 30 ErP 35 ErP 12 T ErP 25 T ErP 30 T ErP 35 T ErP
Heat output
Nominal (80-60°C) (Pn max) kW 23.9 28.9 34.1 11.7 23.9 28.9 34.1
Nominal (50-30°C) (Pn max) kW 26.2 31.6 37.2 12.8 26.2 31.6 37.2
Reduced G20 (80-60°C) (Pn min) kW 4.7 5.9 7.9 2.8 4.7 5.9 7.9
Reduced G20 (50-30°C) (Pn min) kW 5.4 6.6 8.8 3.2 5.4 6.6 8.8
Reduced G31 (80-60°C) (Pn min) kW 7.5 7.6 8.7 3.7 7.5 7.6 8.7
Reduced G31 (50-30°C) (Pn min) kW 8.5 8.5 9.6 4.2 8.5 8.5 9.6
Heat input (*)
Nominal (Qn max - Qnw max) kW 24.5 29.5 34.8 12.0 24.5 29.5 34.8
Reduced G20/G31 (Qn min - Qnw min) kW 5.0/8.0 6.2/8.0 8.2/9.0 3.0/4.0 5.0/8.0 6.2/8.0 8.2/9.0
Min./Max. useful yield (80-60°C) % 94/97.6 95/98 96/98 94/97.5 94/97.6 95/98 96/98
Min./Max. useful yield (50-30°C) % 107/107 107/107 107/107 107/107 107/107 107/107 107/107
Useful yield at 30% of the load (40-30°C) % 107,8 107,7 106,8 107,2 107,8 107,7 106,8
Losses after shutdown to 50°C (EN 15502) W 85 89 90 78 90 95 98
Supply voltage V-Hz 230-50 230-50 230-50 230-50 230-50 230-50 230-50
Adsorbed power consumption (Qn max) W 84 83 93 66 84 83 93
Adsorbed power consumption (Qn min) W 55 55 56 51 55 55 56
Electrical protection grade IP X4D X4D X4D X4D X4D X4D X4D
Energy efficiency
Seasonal energy efficiency class of the heating system A A A A A A A
Seasonal energy efficiency of the heating system % 92 92 91 91 92 92 91
Sound power of the heating system dB (A) 55 53 54 48 55 53 54
D.H.W. energy efficiency class A A A -- -- -- --
D.H.W. energy efficiency % 85 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 20/80 20/80
Water content boiler l 4.9 5.5 6.0 4.4 5.0 5.6 6.1
Maximum water head (PMS) bar 3 3 3 3 3 3 3
Maximum temperature (T max) °C 85 85 85 85 85 85 85
Capacity/Press. of the heating expansion vessel l/bar (kPa) 8/1 (98) 10/1 (98) 10/1 (98) 8/1 (98) 8/1 (98) 10/1 (98) 10/1 (98)
D.H.W. setting range °C 10/65 10/65 10/65 -- -- -- --
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 11.3 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 70 70 70 70 70 70 70
Exhaust fumes temperature at min. flow rate (80-60°C) °C 65 65 65 65 65 65 65
Exhaust fumes temperature at max. flow rate (50-30°C) °C 40 40 40 40 40 40 40
Exhaust fumes temperature at min. flow rate (50-30°C) °C 35 35 35 35 35 35 35
Smokes flow minimum g/s 2.50 3.06 3.89 1.39 2.50 3.06 3.89
Smokes flow maximum g/s 11.67 13.89 16.67 5.84 11.67 13.89 16.67
CO
2 at max./min. flow rate (G20) % 9.0/9.0 9.0/9.0 9.0/9.0 9.0/9.0 9.0/9.0 9.0/9.0 9.0/9.0
CO
2 at max./min. flow rate (G31) % 10.0/10.0 10.0/10.0 10.0/10.0 10.0/10.0 10.0/10.0 10.0/10.0 10.0/10.0
NOx measured
(EN 15502-1:2015)
mg/kWh 23 17 25 22 23 17 25
PIN number 1312BU5312
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 43,4 45,0 46,6 41,2 42,4 44,0 45,2
Main burner nozzle
Quantity nozzles n° 2 2 2 1 2 2 2
G20 nozzle diameter diversified ø 2.4/3.3 2.8/3.8 3.5/4.0 3.3 2.4/3.3 2.8/3.8 3.5/4.0
G31 nozzle diameter diversified ø 1.9/2.6 2.2/2.9 2.8/3.0 2.6 1.9/2.6 2.2/2.9 2.8/3.0
Gas consumption at max./min. flow rate (G20) m
3
/h 2.59/0.53 3.12/0.66 3.68/0.87 1.27/0.32 2.59/0.53 3.12/0.66 3.68/0.87
Gas consumption at max./min. flow rate (G31) kg/h 1.90/0.62 2.29/0.62 2.70/0.70 0.93/0.62 1.90/0.62 2.29/0.62 2.70/0.70
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) 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
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