
22
H050002740 rel. 1.1 - 17.05.2021
Installation
ENG
Compressor
To ensure conformity to the EMC directive it may be necessary to use a ferrite and/or a shielded cable with foil + braid. The cable
can also be installed in steel and copper conduits. In this case, it is recommended to install the ferrite core (for example Fair-Rite
2631102002) around the U, V, W wires and excluding the earth wire, located between the shield earth and the connector. The
shield is fully earthed via a metal clamp at both ends of the cable, as close as possible to the controller’s terminals. In the event
where the shield is connected to the earth spade on the controller (not recommended), the connection should be made by
twisting the shield. The twisted section must be as short as possible, and the length must not exceed five times the width. Earth
the compressor via its metal casing.
300052
_1
07
_
R0
1
Schermo
treccia
Braid shield
Schermo
nastro
Tape shield
U
V
W
PE
Fig. 3.o
Compressor electrical connections
See do030222170 available on ksa.carel.com and the Heosone system 0300099-.
Caution
:
•
do not reverse the compressor phases;
•
do not install a circuit breaker between the drive and the compressor.
Fans
Heosone can control direct current (DC) or alternating current (AC) fans. DC fans can be powered directly by the controller.
Caution
:
outputs J3 and J4 are designed to deliver a maximum total power, as specified in the technical data table; in the
event of higher power output for an extended time, the controller may be damaged. It is therefore necessary to make sure that
the connected DC fans have a lower total power input in all operating conditions (see the table of technical specifications).
Bottle cooler
All the unit’s metal components must be adequately connected to the PE. Metal parts must be coupled together via adjoining,
unpainted points of contact, to ensure good electrical continuity. It is recommended to install the controller inside the
condensing unit and to shield the entire unit. Any wiring leaving the shielded section must be suitably shielded, for example
using shielded cables or metal conduits. In some cases, the use of ferrites on the wires leaving the shielded section may be
sufficient.
50002730_013_R01
Fig. 3.p