Nibe S1155 - Page 28

1x230 V, S1155-12
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
If the current sensors are connected, S1155 monitors
the phase currents and allocates the power steps auto-
matically to the least loaded phase.
NOTE
If the current sensors are not connected,
S1155 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 S1155 is put into emergency mode, the system
works as follows:
• S1155 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).
You can activate the emergency mode both when S1155
is running and when it is switched off.
When the emergency mode is active, the status lamp
turns yellow.
To activate when S1155 is running: press and hold the
on/off button (SF1) for 2 seconds and select "emergency
mode" from the shutdown menu.
To activate when S1155 is switched off: press and hold
the on/off button (SF1) for 5 seconds. (Deactivate the
emergency mode by pressing once.)
NIBE S1155Chapter 5 | Electrical connections28