Nibe S1255 - Page 26

Switching to maximum electrical output
If more than the maximum power (7 kW) for the immersion
heater connected on delivery is needed, the heat pump can
be switched to maximum 9 kW.
Move white cable from terminal block X7-2:N to terminal
block X9:L(2) on the base board (AA2).
3x400 V (maximum electrical power,
connected upon delivery 7 kW för S1255-12 /
-16)
Max phase
current L3(A)
Max phase
current L2(A)
Max phase
current L1(A)
Max electric-
al addition
(kW)
–––0
4.3––1
–8.7–2
4.38.7–3
8.78.7–4
13.08.7–5
8.78.78.76
13.08.78.77
1
1
Factory setting
3x400 V (maximum electrical power,
connected to 9 kW for S1255-12 / -16)
Max phase
current L3(A)
Max phase
current L2(A)
Max phase
current L1(A)
Max electric-
al addition
(kW)
–––0
–8.7–2
8.78.7–4
8.78.78.76
15.615.68.79
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
––2.20.5
–4.3–1.0
–4.32.21.5
8.7––2.0
8.7–2.22.5
8.74.3–3.0
8.74.32.23.5
7.511.5–4.0
7.511.52.24.5
15.67.5–5.0
15.67.52.25.5
15.611.5–6.0
15.611.52.26.5
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
2.22.2–0.5
4.34.3–1.0
6.56.5–1.5
8.78.7–2.0
10.910.9–2.5
11.54.38.73.0
13.26.58.73.5
15.18.78.74.0
17.010.98.74.5
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
8.78.7–2
15.18.78.74
15.115.115.16
27.227.215.19
1
1
Factory setting
1x230 V S1255-6
Max phase current L1(A)Max electric-
al addition
(kW)
–0.0
2.20.5
4.31.0
6.51.5
8.72.0
10.92.5
13.03.0
15.23.5
17.44.0
19.64.5
1
1
Factory setting
1x230 V, S1255-12
Max phase current L1(A)Max electric-
al addition
(kW)
–0.0
4.31.0
8.72.0
13.03.0
17.44.0
21.75.0
26.16.0
30.47.0
1
1
Factory setting
When the current sensors are connected, S1255 monitors
the phase currents and allocates the power steps automat-
ically to the least loaded phase.
NIBE S1255Chapter 5 | Electrical connections26