35
Boiler model LUNA HT 280 330 1.120 1.240 1.280
Category II
2H3P
II
2H3P
II
2H3P
II
2H3P
II
2H3P
DHW rated heat input
kW 28,9 34 - - -
CH rated heat input
kW 24,7 28,9 12,4 24,7 28,9
Reduced heat input
kW 9 9,7 4 7 9,7
DHW rated heat output
kW 28 33 - - -
kcal/h 24.080 28.380 - - -
CH rated heat output
75/60°CkW24281224 28
kcal/h 20.640 24.080 10.320 20.640 24.080
CH rated heat output
50/30°CkW25,9 30,3 13 25,9 30,3
kcal/h 22.270 26.060 11.180 22.270 26.060
Rated heat output
75/60°CkW8,7 9.4 3,9 6.8 9.4
kcal/h 7.480 8.090 3.350 5.850 8.090
Rated heat output
50/30°CkW9,5 10.2 4,2 7.4 10.2
kcal/h 8.170 8.770 3.610 6.360 8.770
Central heating system max. pressure
bar 3 3 3 3 3
Expansion vessel capacity
l10 10 8 8 10
Expansion vessel pressure
bar 0,5 0,5 0,5 0,5 0,5
DHW system max. pressure
bar 8 8 - - -
DHW system min. dynamic pressure
bar 0,2 0,2 - - -
DHW system min. output
l/min 2,5 2,5 - - -
DHW production at
∆T=25 °C l/min 16,1 18,9 - - -
DHW production at
∆T=35 °C l/min 11,5 13,5 - - -
Specific output
(*)“D” l/min 12,9 15,3 - - -
Concentric flue duct diameter
mm 60 60 60 60 60
Concentric air duct diameter
mm 100 100 100 100 100
2-pipe flue duct diameter
mm 80 80 80 80 80
2-pipe air duct diameter
mm 80 80 80 80 80
Max. flue mass flow rate
kg/s 0,014 0,016 0,006 0,012 0,014
Min. flue mass flow rate
kg/s 0,004 0,005 0,002 0,003 0,005
Max. flue temperature
°C75 757373 75
Type of gas used
— G20 G20 G20 G20 G20
— G31 G31 G31 G31 G31
Natural gas feeding pressure
mbar 20 20 20 20 20
Propane gas feeding pressure
mbar 37 37 37 37 37
Power supply voltage
V 230 230 230 230 230
Power supply frequency
Hz 50 50 50 50 50
Rated power supply
W 155 160 145 150 155
Net weight
kg 45,5 46,5 44 45 46
Dimensions height
mm 763 763 763 763 763
width
mm 450 450 450 450 450
depth
mm 354 354 354 354 354
Protection-limit against humidity and water leakages
(**) IPX5D IPX5D IPX5D IPX5D IPX5D
(*) according to EN 625
(**) according to EN 60529
28. Technical data
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