Boiler speed Unit
POWER
HT+ 1.50
POWER
HT+ 1.70
POWER
HT+ 1.90
POWER HT
+ 1.110
Heating flow rate - Hs
Heating mode
Minimum kW 5.6 8.2 10.7 12.9
Heating flow rate - Hs
Heating mode
Maximum kW 51.4 74.2 97.0 116.4
Efficiency at 80/60 °C - Hi
Heating mode under full load
Maximum % 97.4 97.2 97.3 97.2
Efficiency at 50/30 °C - Hi
Heating mode un
der full load
% 105.0 105.0 105.5 105.1
Efficiency - Hi - Return temperature
30 °C
Heating mode un
der part load
% 108.4 108.1 108.2 108.1
(1) The heat output with G31 gas is different and is 12.5 kW
Tab.2 Characteristics of the heating circuit
Unit
POWER HT+
1.50
POWER HT+
1.70
POWER HT+
1.90
POWER HT+
1.110
Water content (excluding expansion vessel) litre 2.81 4.98 8.34 9.83
Minimum operating pressure kPa (bar) 0.5 0.5 0.5 0.5
Maximum operating pressure (MOP) kPa (bar) 4 4 4 4
Maximum water temperature °C 85 85 85 85
Maximum operating temperature °C 80 80 80 80
Tab.3 Data on the gases and combustion gases
For gas flow rates at 15°C and
1013.25 hPA
Boiler speed Unit POWER HT
+ 1.50
POWER HT
+ 1.70
POWER HT
+ 1.90
POWER HT
+ 1.110
Consumption of natural gas H (G20) Minimum m³/h 0.54 0.78 1.03 1.24
Consumption of natural gas H (G20) Maximum m³/h 4.90 7.07 9.25 11.10
Consumption of natural gas E (G20) Minimum m³/h 0.54 0.78 1.03 1.24
Consumption of natural gas E (G20) Maximum m³/h 4.90 7.07 9.25 11.10
Consumption of natural gas L (G25) Minimum m³/h 0.63 0.91 1.19 1.44
Consumption of natural gas L (G25) Maximum m³/h 5.69 8.22 10.75 12.91
Consumption of natural gas LL (G25) Minimum m³/h 0.63 0.91 1.19 1.44
Consumption of natural gas LL (G25) Maximum m³/h 5.69 8.22 10.75 12.91
Consumption of Propane (G31) Minimum Kg/h 0.40 0.57 0.97 0.91
Consumption of Propane (G31) Maximum Kg/h 3.59 5.19 6.79 8.15
NOx emission according to EN297A3 Class 5 mg/kWh 29.8 34.8 39.5 24.7
Flue gas mass flow rate (G20) Minimum Kg/h 7.2 14.4 18 18
Flue gas mass flow rate (G20) Maximum Kg/h 75.6 111.6 144 169.2
Maximum flue gas temperature Minimum °C 92 76 70 70
Maximum counter-pressure (B23
p
)
Pa 200 200 200 200
Tab.4 Electrical characteristics
Unit POWER HT+
1.50
POWER HT+
1.70
POWER HT+
1.90
POWER HT+
1.110
Power supply voltage VAC 230V 50Hz 230V 50Hz 230V 50Hz 230V 50Hz
Maximum absorbed power - Full load W 100 117 146 185
Maximum absorbed power - Part load W 24 24 24 24
3 Technical specifications
12 7609474 - v02 - 04092014