Nova Florida DELFIS Monothermal - Operating Data; General Characteristics

21
Technical features and dimensions
2.4 Operating data
Burner pressures reported in the following page must be veried after the boiler has been operating for 3 minutes.
Gas category: II2H3+
Fuel
Gas mains pressure
[mbar]
Nozzle [mm]
Min pressure at the
burner [mbar]
Max pressure at the
burner [mbar]
Natural gas G20 20 1,27 3,2 12,4
Butane gas G30 29 0,77 7,2 27,1
Propane Gas G31 37 0,77 9,2 35,0
Tab. 1 Adjustment specications
2.5 General characteristics
Description um CTN 24
Burner nozzles no. 11
Nominal heat input kW 24,5
Minimum heat input kW 12,0
Max heat output kW 22,07
Minimum heat output kW 10,46
Minimum CH system pressure bar 0,5
Maximum CH system pressure bar 3,0
DHW circuit min. pressure bar 0,5
DHW circuit max. pressure bar 8,0
DHW specic ow rate (ΔT=25K) l/min 12,7
DHW specic ow rate (ΔT=30 K) l/min 10,6
Electric power supply – voltage / frequency V - Hz 230 - 50
Power mains supply fuse A 3,15
Maximum power consumption W 57
Pump absorption W 41
Electric protection rating IP X4D
Net weight kg 23,0
Natural gas consumption (*) cu. m/h 2,59
Butane gas consumption kg/h 1,93
Propane gas consumption kg/h 1,90
Maximum CH working temperature °C 83
Maximum DHW working temperature °C 62
Total capacity of expansion vessel l 7
Maximum recommended system capacity (**) l 100
Tab. 2 General specications
(*) Value referred to 15 °C - 1013 mbar
(**) Maximum water temperature 83°C, expansion vessel pressure 1 bar