Nibe F1145 series User Manual

3.
Pull off the cover.
L
E
K
L
E
K
L
E
K
L
E
K
CABLE LOCK
Use a suitable tool to release/lock cables in the heat
pump terminal blocks.
LEK
1
1
2
2
3
3
1
2
3
3
4
1
2
LEK
1
1
2
2
3
3
1
2
3
3
4
1
2
1
2
Connections
NOTE
To prevent interference, unscreened commu-
nication and/or sensor to external connections
cables must not be laid closer than 20 cm to
high voltage cable when cable routing.
POWER CONNECTION
F1145 must be installed with a disconnection option on
the supply cable. Minimum cable area must be sized
according to the fuse rating used. Enclosed cable for
incoming supply electricity is connected to terminal block
X1 on the immersion heater board (AA1). All installations
must be carried out in accordance with current norms
and directives.
AA1-X1
NOTE
F1145 is not reconnectable between 1-phase
and 3-phase, neither is it reconnectable
between 3x230V and 3x400V.
Connection 3x230V
PE1
1 L2 2 L3L1
PE
AA1-X1
Connection 3x400V
AA1-X1
PE1
L1 1 L2 L3PE0
N
NOTE
F1145 contains scroll compressor, which
means that it is important that electrical con-
nections are made with the correct phase se-
quence. With the incorrect phase sequence,
the compressor does not start and an alarm is
displayed.
If a separate supply to the compressor and electric
heater is wanted, see section "External blocking of
functions" on page 29.
TARIFF CONTROL
If the voltage to the immersion heater and/or the com-
pressor disappears during a certain period, there must
also be blocking via the AUX-input, see "Connection
options - Possible selection for AUX inputs" page. 29
NIBE F1145Chapter 5 | Electrical connections22

Nibe F1145 series Specifications

General

Brand	Nibe
Model	F1145 series
Category	Heat Pump
Language	English