15
Subject to change without notice | 83053700lUK | ait-deutschland GmbH
17 Electrical connections
The following applies to all work to be done:
DANGER
Risk of fatal injury due to electric shock!
All electrical connections must be carried
out by qualied electricians only.
Before opening the unit, disconnect the
system from the power supply and prevent
it from being switched back on!
WARNING
During installation and while carrying out
electrical work, comply with the relevant
EN‑, VDE and/or local safety regulations.
Comply with technical connection
requirements of the responsible power
supply company (if required by the latter)!
NOTE
All cables must be fed through the openings
in the back panel!
1. The front panel is hung in at the bottom and is
held in place at the top by 2 quarter-turn screws.
1 Quarter-turn screws
2. Open the quarter-turn screws of the front panel by
turning them through 90° anticlockwise.
3. Lift out front panel and set aside in a safe place.
4. Open the unit’s electrical switch cabinet.
1 Electrical switch cabinet
Undo the 6 screws slightly, in order to unhook the
cover panel by lifting it slightly.
5. Several openings are provided at the back of the
unit for passing through the cables.
NOTE
When laying the cable, ensure that unshielded
power supply cables and shielded cables
(LIN bus) are laid separately from each other.
NOTE
LIN bus length may not be increased.
However, they can be shortened.
For further details: “Installation plans“, from
page 44, for the respective model
1 Electric cable penetration
2 Penetration, LIN bus and patch cable for the
heating and heat pump regulator
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