18
Subject to change without notice | 83051400cUK – Translation into English of the original German operating manual | ait-deutschland GmbH
LW 140A/RX:
1 Connection box for compressor
Connect power cable to the connection box (elec-
tric heating element on-site)...
Close connection box...
Install power cable in a conduit as far as where it
enters the building and from there on to the fuse
box...
Connect power cable to power supply.
ATTENTION
Ensure clockwise rotary field of the load power
supply (compressor).
– An incorrect rotary field of the compressor
during operation can cause serious, irrepa-
rable damage to the compressor.
ATTENTION
The power supply for the heat pump must be
equipped with an all-pole miniature circuit-
breaker with at least 3 mm contact spacing to
IEC 60947-2.
Note the level of the release current.
Overview “Technical data / scope of delivery”,
“Electric” section.
Electrical connections
Observe the following when performing all work:
DANGER!
Danger of fatal injury due to electric
shock!
Electrical connections may be installed
only by qualified electricians.
Before opening the unit, disconnect the
system from the power supply and secure
it from being switched back on!
WARNING!
Observe the relevant EN‑, VDE and/or ap‑
plicable local safety regulations during the
installation and during all electrical work.
Comply with technical connection re‑
quirements of the responsible power sup‑
ply company (if required by the latter)!
POWER CONNECTION
It is not necessary to open the electric switch cabinet in
order to connect the power to the heat pump. The pow-
er is connected at the connection boxes on the water
connection side.
If the unit is closed, open facing panels...
“Preparing for installation”
Open connection boxes...
LW 90A/RX…:
1 Connection box for compressor
