35
INSTALLERUSERMAINTENANCE TECHNICIAN
- e data relevant to domestic hot water perfor-
mance refer to a dynamic inlet pressure of 2 bar
and an inlet temperature of 15°C; the values are
measured directly at the boiler outlet consider-
ing that to obtain the data declared mixing with
cold water is necessary.
3.20 TECHNICAL DATA.
Maior Eolo 24 Maior Eolo 28 Maior Eolo 32
Nominal heat input kW (kcal/h) 25.8 (22194) 29.7 (25536) 34.2 (29433)
DHW minimum heat input kW (kcal/h) 8.1 (6968) 9.9 (8480) 12.2 (10524)
CH minimum heat input kW (kcal/h) 10.6 (9094) 12.7 (10902) 14.8 (12710)
Nominal heat output (useful) kW (kcal/h) 24.0 (20640) 28.0 (24080) 32.0 (27520)
DHW minimum heat output (useful) kW (kcal/h) 7.0 (6020) 8.5 (7310) 10.5 (9030)
CH minimum heat output (useful) kW (kcal/h) 9.3 (7998) 11.2 (9632) 12.9 (11087)
Eciency at nominal heat output % 93.0 94.3 93.5
Eciency at 30% nominal heat output load % 90.5 91.5 90.7
Heat loss at case with burner On/O % 0.50 / 0.75 0.00 / 0.53 0.70 / 0.50
Heat loss at ue with burner On/O % 6.0 / 0.02 5.70 / 0.06 5.80 / 0.04
Central heating circuit max. operating pressure bar 3.0 3.0 3.0
Maximum heating temperature °C 90 90 90
Adjustable central heating temperature °C 35 - 85 35 -85 35 - 85
System expansion vessel total volume l 8.0 7.4 7.4
Heating expansion vessel pre-charge bar 1.0 1.0 1.0
Appliance water content l 1.3 1.5 2.0
Head available with 1000 l/h ow rate kPa (m H
2
O) 24.52 (2.5) 32.46 (3.3) 39.32 (4.0)
Hot water production useful heat output kW (kcal/h) 24.0 (20640) 28.0 (24080) 32.0 (27520)
Domestic hot water adjustable temperature °C 30 - 60 30 - 60 30 -60
Domestic hot water circuit min. pressure (dynamic) bar 0.3 0.3 0.3
Domestic hot water circuit max. operating pressure bar 10.0 10.0 10.0
Minimum D.H.W. ow rate l/min 1.5 1.5 1.5
Flow rate capacity in continuous duty (∆T 30°C) l/min 11.5 13.8 16.1
Weight of full boiler kg 39.0 39.6 41.5
Weight of empty boiler kg 37.7 38.1 39.5
Electrical connection V/Hz 230 / 50 230 / 50 230 / 50
Nominal power absorption A 0.85 0.74 0.83
Installed electric power W 115 130 150
Pump absorbed power W 86 84 106
Fan power absorbed power W 29 46 32
Equipment electrical system protection - IPX5D IPX5D IPX5D
NO
X
class - 3 3 3
Weighted NO
X
mg/kWh 128 107 102
Weighted CO mg/kWh 84 92 63
Type of appliance C12 /C32 / C42 / C52 / C82 / B22p / B32
Category II2H3+
- e max. sound level emitted during boiler
operation is < 55dBA. e sound level value is
referred to semianechoic chamber tests with
boiler operating at max. heat output, with
extension of ue gas exhaust system according
to product standards.
STD.002998/004