G-16
B-070343_EN • B
T
echnical
S
pecificaTionS
Performance and Efficiency Data
N 280 FS
(min. - max.)
N 420 FS
(min. - max.)
N 570 FS
(min. - max.)
N 840 FS
(min. - max.)
heat input (net)
G20
kW
26.0 - 265.0
41.9 - 401.2
67.0 - 530.0
90.0 - 792.0
G31
66.0 – 265.0
99.0 – 401.2
124.0 – 530.0
197.0 – 792.0
heat output at 80/60°C
G20
kW
25.0 - 258.0
39.8 - 388.1
64.5 - 516.0
86.6 - 769.8
G31
64.0 – 258.0
96.0 - 390.0
120.0 - 515.0
190.4 – 769.8
heat output at 50/30°C
G20
kW
27.9 - 281.6
43.1 - 421.3
71.5 - 567.0
96.7 - 831.5
G31
70.0 – 276.8
105.0 - 419.0
132.0 - 556.0
209.5 – 816.1
heating efficiency 80/60°C
%
96.0 - 97.4
96.2 - 97.4
96.3 - 97.4
96.2 - 97.2
heating efficiency 50/30°C
%
107.5 - 106.3
107.4 - 106.9
106.8 - 107.0
107.5 - 105.0
useful efficiency at 30%
(return at 30°C)
%
108.3
108.0
108.0
108.3
seasonal efficiency
%
93.0
93.0
93.0
93.0
Electrical Data
N 280 FS N 420 FS
N 570 FS N 840 FS
supply voltage / frequency
V / Hz
230 / 50 / 3
3x400 / 50
protection class
IP
X4D
boiler type and model
N 280 FS
N 420 FS
N 570 FS N 840 FS
condensing boiler
Y/N
Y
Y
Y
Y
low temp boiler
Y/N
Y
Y
Y
Y
combination heater
Y/N
N
N
N
N
useful heat output
at 30% of rated heat output (
P
1
)
kW
46.4
70.9
95.5
138.5
at rated output and high-temp regime (
P
4
)
kW
258.0
388.1
516.0
769.8
useful efficiency
at 30% of rated heat output (
η
1
)
%
97.6
97.4
97.4
97.6
at rated output and high-temp regime (
η
4
)
%
87.8
87.8
87.8
87.6
auxiliary electricity consumption
at full load (elmax)
kW
0.462
0.578
0.683
1.541
at part load (elmin)
kW
0.041
0.050
0.056
0.071
in standby mode (
P
SB
)
kW
0.006
0.007
0.008
0.006
el. consumption including typical boiler pump
kW
0.592
0.796
1.049
2.019
standby heat loss (
P
stby
)
kW
0.5
0.7
0.9
2.0
annual energy consumption for space heating
kWh
—
—
—
—
sound power level indoors LWA
dB
—
—
—
—
ErP Data
