Nibe F1145 Series Installation Manual page 25

The table displays the total phase current for the immer-
sion heater at start up. If an immersion heater has
already been started and is not used for its full capacity
the values in the table can be changed because the
control initially uses this immersion heater.
Switching to maximum electrical output
If more than the maximum output (7 kW) for the immer-
sion heater connected on delivery is needed, the heat
pump can be switched to maximum 9 kW.
Move the white cable from terminal block X7:23 to ter-
minal block X3:13 (the seal on the terminal block must
be broken) on the immersion heater card (AA1).
3x400V V (maximum electrical output, connected
upon delivery 7 kW)
Max electric- Max phase
al addition current L1(A)
(kW)
0 –
1 –
2 –
3 –
4 –
5 –
6 8.7
7 8.7
3x400V (maximum electrical output, switched to
9 kW)
Max electric- Max phase
al addition current L1(A)
(kW)
0 –
2 –
4 –
6 8.7
9 8.7
3x230V
Max electric- Max phase
al addition current L1(A)
(kW)
0 –
2 9.4
4 9.5
6 15.6
9 15.6
If the current sensors are connected, the heat pump
monitors the phase currents and allocates the electrical
steps automatically to the least loaded phase.
NIBE F1145
Max phase Max phase
current L2(A) current
L3(A)
– –
– 4.3
8.7 –
8.7 4.3
8.7 8.7
8.7 13.0
8.7 8.7
8.7 13.0
Max phase Max phase
current L2(A) current
L3(A)
– –
8.7 –
8.7 8.7
8.7 8.7
15.6 15.6
Max phase Max phase
current L2(A) current
L3(A)
– –
9.4 –
15.6 8.7
15.6 15.6
27.4 25.6
EMERGENCY MODE
When the heat pump is set to emergency mode (SF1
is set to ) only the most necessary functions are activ-
ated.
• The compressor is off and heating is managed by the
immersion heater.
• Hot water is not produced.
• The load monitor is not connected.
NOTE
The switch (SF1) must not be moved to "" or
" " until F1145 has been filled with water.
Components in the product can be damaged.
Power in emergency mode
The immersion heater's output in emergency mode is
set with the dipswitch (S2) on the immersion heater
circuit board (AA1) according to the table below. Factory
setting is 6 kW.
3x400V (maximum electrical output, connected
upon delivery 7 kW)
kW 1 2
1 off off
2 off off
3 off off
4 off off
5 on off
6 on off
7 on off
3x400V (maximum electrical output, switched to
9 kW)
kW 1 2
2 off off
4 off off
6 on off
9 on off
3x230V
kW 1 2
2 off off
4 off on
6 on on
9 on on
Chapter 5 | Electrical connections
3 4 5
off off off
on off off
on off off
on off on
on off off
on off on
on off on
3 4 5
off off on
on off on
on off on
on on on
3 4 5
off on off
off on off
off on off
on on off
6
on
off
on
off
on
off
on
6
off
off
off
on
6
off
off
off
off
25