External Unit Electrical Connection - elco AEROTOP SPLIT M-RX Guide D'installation

Installation guide

External Unit electrical connection

WARNING:
Make ground connection prior to
any other electrical connections.
The internal and external units must
be powered separately.
To prevent any risk, the power sup-
ply cable of the outdoor and indoor
unit must only be replaced by the
technicians of the after-sales service.
• When removing the front panel, the
electric parts appear at the front side.
• The power supply cables can be in-
serted into the precut holes (A) (Take
off the knockout part)
• Be sure to fi x the power cable (B)
and indoor/outdoor communication
cable (C) with all the clips provided
into the units and if necessary add
bundling bands sold on the market in
order to be sure that they will not be
in contact with the compressor and
the hot pipes.
• To ensure good tensile strength, the
electric cables must be fastened
using the cable-holder on the plate
(D).
• Connect the communication cable
to the terminals as identifi ed by their
respective numbers on the terminal
block of indoor and outdoor unit.
According to the installation instruc-
tions, all devices for disconnection from
the power supply mains must have a
contact opening (4 mm) to allow total
disconnection according to the condi-
tions provided for the overvoltage class
III.
Warning: Before obtaining access
to terminals, all supply circuits
must be disconnected.
External unit terminal block 1Ph
Low voltage High voltage
GND A B L N
L N
MODBUS
D
External unit terminal block 3Ph
Low voltage High voltage
GND A B L1 L2 L3 N
L
MODBUS
C
B
A
N
71 / GB