Settings
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Electrical addition - maximum output
On delivery the immersion heater is connected for a
maximum of 7 kW.
The immersion heater output is divided into seven steps,
according to the table below.
Setting max electrical output
Setting maximum output in the electrical addition is done
in menu 5.1.12.
The tables display the total phase current for the immer-
sion heater.
1x230V
Max phase current L1(A)Max elec-
trical addi-
tion (kW)
00
4.31
8.72
133
17.44
21.75
26.16
30.47
Emergency mode
When the heat pump is set to emergency mode (SF1 is
set to
) only the most necessary functions are activated.
႑
The compressor is off and heating is managed by the
immersion heater.
႑
Hot water is not produced.
NOTE
Switch (SF1) must not be moved to ""or" "
until F1145 has been filled with water. Other-
wise the temperature limiter, thermostat, com-
pressor and the immersion heater can be dam-
aged.
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.
1x230V
654321
onoffoffoffoffoff1kW
offoffoffonoffoff2kW
onoffoffonoffoff3kW
offonoffonoffoff4kW
onoffoffonoffon5kW
offonoffonoffon6kW
ononoffonoffon7kW
1x230V
1 2 3 4 5 6
ON
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The image shows the dip-switch (AA1-SF2) in the factory
setting, that is 6 kW.
Emergency mode thermostat
The supply temperature is set in emergency mode using
a thermostat (FD1-BT30). It can be set to 35 (pre-set, for
example underfloor heating) or 45 °C (for example radi-
ators).
LEK
21Chapter 5 | Electrical connectionsNIBE™ F1145
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