Immergas ZEUS 24 - Page 25

INSTALLATORUSERMAINTENANCE
25 - IE
- Temperature adjustment at domestic water ow
of 7l/min. with inlet temperature of 15°C.
- Fume temperature values refer to an air inlet
temperature of 15°C.
- e data relevant to domestic hot water per-
formance 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
considering that to obtain the data declared
mixing with cold water is necessary.
- 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 fume exhaust system according
to product standards.
3.18 TECHNICAL DATA.
Zeus 24 kW Zeus 28 kW
Nominal heating power kW (kcal/h) 25,5 (21934) 29,8 (25644)
Minimum heating power kW (kcal/h) 10,5 (9048) 12,6 (10799)
Nominal heating power (useful) kW (kcal/h) 24,0 (20640) 28,0 (24080)
Minimum heating power (useful) kW (kcal/h) 9,3 (7998) 11,0 (9460)
Useful thermal eciency at nominal output % 94,1 93,9
Useful thermal eciency at 30% nominal output % 90,4 90,6
Heat loss at case with burner On/O % 0,40 / 0,89 0,60 / 0,62
Heat loss at ue with burner On/O % 5,50 / 0,03 5,50 / 0,01
Heating circuit max. working pressure bar 3 3
Heating circuit max. working temperature °C 90 90
Adjustable heating temperature °C 35 - 85 35 - 85
Total volume system heating expansion tank l 7,7 7,7
Heating expansion tank pre-charge bar 1 1
Generator water capacity l 3,6 4,1
Head available with ow rate 1000/h kPa (m H
2
O) 24,7 (2,52) 33,4 (3,41)
Hot water production available heat output kW (kcal/h) 24,0 (20640) 28,0 (24080)
Domestic hot water adjustable temperature °C 20 - 60 20 - 60
Domestic circuit ow limiter at 2 bar l/min 9,2 11,6
Domestic circuit min. pressure (dynamic bar 0,3 0,3
Domestic circuit max. working pressure bar 8 8
Specic capacity (∆T 30°C) l/min 13,5 14,5
Drawing capacity in continuous duty (∆T 30°C) l/min 11,5 13,4
Weight of full boiler kg 100,1 104,6
Weight of empty boiler kg 54 58
Electric attachment V/Hz 230/50 230/50
Nominal absorption A 0,7 0,73
Installed electric power W 140 145
Power absorbed by circulation pump W 81,7 85,6
Power absorbed by fan W 32,8 37,6
Equipment electrical system protection - IPX4D IPX4D
NO
X
class - 3 3
NO
X
weighted mg/kWh 134 113
CO weighted mg/kWh 111 104
Type of appliance C12 /C32 / C42 / C52 / C82 / B22 / B32
Category II2H3+