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6
Electrical Installation
BB B B
Electrical current! The terminal blocks are live
and can be highly dangerous due to the risk of
electric shock. All power supplies must be iso-
lated before electrical installation is started. The
heat pump is connected internally at the factory,
for this reason electrical installation consists
mainly of the connection of the power supply.
A B
BB
Danger! Electrical installation may only be car-
ried out by an authorized electrician and must
follow applicable local and national regulations.
D B
BB
The electrical installation must be carried out
using permanently routed cables. It must be
possible to isolate the power supply using an all-
pole circuit breaker with a minimum contact gap
of 3 mm.
6.1
Control centre
6.1.1
Installation
D B
BB
The control centre must be installed in a frost
free environment.
The control centre contains necessary components for
voltage supply, control system and operation.
6.1.2
Electrical components in 400V 3N control
centre
1
3
4
7
Figure 8: The location of the components in the control centre.
Position Name
1
I/O card
2
Expansion card (accessory)
3
Overcurrent relay
4
Fuse
5
Defrost card
6
Soft starter
7
Terminal blocks
14 – Installation
6.1.3
Figure 9: The location of the components in the control centre.
Position Name
1
2
3
4
5
6
7
8
6.2
BB E B
5
The heat pump, which is located outdoors is connected
to the control centre, which is located indoors. This places
demands on which type of cable to use for the different
6
connections. The following list provides information about
which type of cable meets the requirements regarding
cross section, UV protection etc:
2
400V 6, 8, 10 and 12kW
z z
z z
Communication cable
yz
ÖLFLEX CLASSIC 110 12G0.5 0.6/1kV CY BK
Power cable
yz
ÖLFLEX CLASSIC 110 12G2.5 0.6/1kV BK
230V 6kW
z z
z z
Communication cable
yz
ÖLFLEX CLASSIC 110 12G0.5 0.6/1kV CY BK
Power cable
yz
ÖLFLEX CLASSIC 110 12G2.5 0.6/1kV BK
230V 8, 10 and 12 kW
z z
z z
Communication cable
yz
ÖLFLEX CLASSIC 110 12G0.5 0.6/1kV CY BK
Power cable except compressor
yz
ÖLFLEX CLASSIC 110 7G2.5 0.6/1kV BK
Power cable compressor
yz
ÖLFLEX CLASSIC 110 4G4.0 0.6/1kV BK
Maximum cable length 30 m.
VMBMH302
Electrical components in 230V 1N control
centre
1
3
4
7
I/O card
Expansion card (accessory)
Overcurrent relay
Fuse
Defrost card
Soft starter
Terminal blocks
Capacitor
Cable connection
E lectrical connection can also cause noise so this
installation must be carried out appropriately.
An appropriate installation is where there is
approximately 300 mm free cable between the
heat pump and the building. It is inappropriate
to bolt trunking between the heat pump and
the wall. This is because vibrations can then be
transmitted from the heat pump through the
trunking to the walls of the house.
2
5
6
8
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