High effi ciency condensing systems
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High efciency condensing systems Info Tech pages 15 34-39 40-42 43-44 45 • Stainless steel primary exchanger: reliability and long life • Digital control panel with integrated heating and DHW timer functions • Cascade and mixed systems installation option • Built-in 3 way electric valve for indirect cylinder connection • Modulating pump • Built-in climatic regulation (outdoor sensor supplied as optional) Cascade installation Modulating pump Noise and power consumption reduction thanks to the speed automatic adjustment in accordance to the heat exchange. The sophisticated electronics allows up to 12 boilers connection. Hydraulic system 3 way electric diverter valve Stainless steel AISI 316L burner Stainless steel AISI 316L heat exchanger Modulating fan with electronic speed adjusting system Automatic by-pass Low energy modulating pump with automatic air vent System to prevent pump and diverter 3 way valve sticking operating every 24 hours Central heating relief valve set at 3 bar Thermoregulation system Built-in climatic regulation (outdoor sensor available as optional) Mixed systems installation option Cascade installation option Remote controller and climatic regulator (supplied as optional) Heating and DHW times integrated in the contol panel Control system Overheat limit thermostat for the water/ue exchanger Hydraulic pressure switch to prevent boiler operating in the event of low water Overheat limit thermostat against ues overheat Electronic temperatures control by NTC sensors Full anti-frost device Electronic thermometer Central heating pressure gauge Heating only* Maximum DHW heat input Maximum heating heat output 80/60°C Maximum heating heat output 50/30°C Minimum heat output 80/60°C Minimum heat output 50/30°C kW kW kW kW kW 1.180 MP 17,4 16,9 18,3 4,2 4,5 1.240 MP 24,7 24 25,9 6,8 7,4 1.330 MP 34 33 35,8 9,4 10,2 ++++ 109,8 97,6 105,1 107,5 5 -5 8/0,5 25/80 35/60 ++++ 109,8 97,3 105,1 107,6 5 -5 10/0,5 25/80 35/60 Energetic efciency (92/42/CEE) Average efciency (DIN 4702-T8) Nominal efciency 80/60°C Nominal efciency 50/30°C Efciency 30% NOx class (EN 483) Minimum working temperature Expansion vessel capacity/pre-charge Heating temperature range DHW temperature range °C l/bar °C °C ++++ 109,8 97,4 105,1 107,5 5 -5 8/0,5 25/80 35/60 Maximum pressure DHW circuit Coaxial ue system Ø 60/100 max length Dual ue system Ø 80 max length Maximum ue mass ow rate Minimum ue mass ow rate Maximum ue temperature bar m m kg/s kg/s °C 3 10 80 0,002 0,002 74 3 10 80 0,012 0,003 73 3 10 80 0,016 0,005 76 Dimensions (h x w x d) Net weight Gas type Power consumption Grade of protection mm kg 760x450x345 44 Nat. gas/LPG 145 IPX5D 760x450x345 45 Nat. gas/LPG 150 IPX5D 760x450x345 46 Nat. gas/LPG 155 IPX5D % % % % W * Luna3 System HT boilers are connectable to combi 80 lt/UB-UB INOX 80/120 lt. See pages 31-32 for sanitary performance. 25