3x400 V, S1255-6
Max phase
current
L3(A)
Max phase
current L2(A)
Max phase
current L1(A)
Max electric-
al addition
(kW)
–
–
–
0.0
–
–
2.2
0.5
–
4.3
–
1.0
–
4.3
2.2
1.5
8.7
–
–
2.0
8.7
–
2.2
2.5
8.7
4.3
–
3.0
8.7
4.3
2.2
3.5
7.5
11.5
–
4.0
7.5
11.5
2.2
4.5
15.6
7.5
–
5.0
15.6
7.5
2.2
5.5
15.6
11.5
–
6.0
15.6
11.5
2.2
6.5
1
1
Factory setting
3x230 V, S1255-6
Max phase
current
L3(A)
Max phase
current L2(A)
Max phase
current L1(A)
Max electric-
al addition
(kW)
–
–
–
0.0
2.2
2.2
–
0.5
4.3
4.3
–
1.0
6.5
6.5
–
1.5
8.7
8.7
–
2.0
10.9
10.9
–
2.5
11.5
4.3
8.7
3.0
13.2
6.5
8.7
3.5
15.1
8.7
8.7
4.0
17.0
10.9
8.7
4.5
1
1
Factory setting
3x230 V, S1255-12
Max phase
current
L3(A)
Max phase
current L2(A)
Max phase
current L1(A)
Max electric-
al addition
(kW)
–
–
–
0
8.7
8.7
–
2
15.1
8.7
8.7
4
15.1
15.1
15.1
6
27.2
27.2
15.1
9
1
1
Factory setting
1x230 V S1255-6
Max phase current L1(A)
Max electric-
al addition
(kW)
–
0.0
2.2
0.5
4.3
1.0
6.5
1.5
8.7
2.0
10.9
2.5
13.0
3.0
15.2
3.5
17.4
4.0
19.6
4.5
1
1
Factory setting
1x230 V, S1255-12
Max phase current L1(A)
Max electric-
al addition
(kW)
–
0.0
4.3
1.0
8.7
2.0
13.0
3.0
17.4
4.0
21.7
5.0
26.1
6.0
30.4
7.0
1
1
Factory setting
If the current sensors are connected, S1255 monitors
the phase currents and allocates the power steps auto-
matically to the least loaded phase.
NOTE
If the current sensors are not connected,
S1255 calculates how high the currents will be
if the relevant power steps are added. If the
currents are higher than the set fuse size, the
power step is not allowed to cut in.
EMERGENCY MODE
When S1255 is put into emergency mode, the system
works as follows:
• S1255 prioritises heating production.
• Hot water is produced if possible.
• The load monitor is not connected.
• The immersion heater is stepped according to the
setting in menu 7.1.8.2 - Emergency mode.
• Fixed supply temperature if the system has no value
from the outdoor sensor (BT1).
NIBE S1255
Chapter 5 | Electrical connections
26
Содержание S1255-12
Страница 1: ...IHB EN 2001 2 531086 INSTALLER MANUAL Ground source heat pump NIBE S1255...
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