15
Subject to change without notice | 83056800fUK – Translation of the original operating manual | ait-deutschland GmbH
6.4 Connect the electrical cables
IMPORTANT
Irreparable damage to the compressor due to
wrong rotating field!
► Ensure that there is a clockwise rotating field for
the compressor load infeed.
Basic information on the electrical connection
NOTE
Ensure that the unit is supplied with electricity
at all times. After working inside the unit and
attaching the unit panelling, switch the power
supply back on immediately.
● The specifications of the local energy supply
company may apply to electrical connections
●
Fit the power supply for the heat pump
with an all-pole miniature circuit-breaker
with at least 3
mm contact spacing (per
IEC 60947-2)
●
Note the level of the tripping current
(
“Technical data / Scope of supply”, from
page 22)
●
Comply with the electromagnetic compatibility
regulations (EMC regulations)
●
Lay unshielded power supply cables and shielded
cables (bus cable) sufficiently far apart (> 100 mm)
●
Maximum line length: 30 m.
The LIN-bus cable must be a shielded cable of at
least 4 x 0.5 mm²
Pull in the cables and conductors and make
the connections
1. Strip the sheathing of all cables to the external
loads before laying in the cable duct of the control
box.
2. Dismantle the cover of the electrical control box.
3. Feed the control/sensor cables and unit supply
cable into the housing from the rear.
4. Route cables from underneath through the cable
openings in the control box.
5. Connect cables to the respective terminals
(
“Terminal diagrams”, from page 42).
Operate the controller via a PC /network
1.
During installation lay a shielded network cable
(category 6) through the unit.
2.
Plug the RJ-45 connector of the network cable
into the socket of the control unit
(①)
.
1
NOTE
The network cable can be retrofitted at any
time.
