Electrical Connections - SystemAir SYSAQUAC 25 Manuel D'installation

12. ELECTRICAL CONNECTIONS

The electrical installation must be performed by a fully qualified electrician, and in accordance with local electrical
standards and the wiring diagram corresponding to the unit model.
Any modification performed without our prior authorisation may result in the unit's warranty being declared null
and void.
The power supply cable section must be sufficient to provide the appropriate voltage to the unit's power supply
terminals, both at start-up and under full load operating conditions.
The power supply cable shall be selected in accordance with the following criteria:
1. Power supply cable length.
2. Maximum unit starting current draw – the cables shall supply the appropriate voltage to the unit
terminals for starting.
3. Power supply cables' installation mode.
4. Cables' capacity to transport the total system current draw.
The use of fuse to protect the unis against short circuits is recommended. The fuse sizes are displayed in the table
§ ELECTRIC SPECIFICATIONS, page 11
VERY IMPORTANT:
The outdoor unit is equipped as standard with a phase sequence and cut-out controller located in the electrical box.
THE LED's INDICATE THE FOLLOWING CONDITIONS:
Green LED = 1
Yellow LED =1
Power ON
T h e c o m p r e s s o r r o t a t i o n
direction is correct.
Caution
Before connecting the supply lines, check that the voltage available is within the limits specified
(Refer to the § ELECTRIC SPECIFICATIONS, page 11).
Voltage differences between each phase do not have to exceed 2 %.
If the unbalance is inacceptable, call the distribution company to have this anomaly corrected.
Before carrying out any work on the equipment,
make sure that the electrical power supply is
disconnected and that there is no possibility
of the unit being started inadvertently.
Non-compliance with the above instructions
can lead to injury or death by electrocution.
3N~400V-50HZ
Green LED = 1
Yellow LED =0
Phase inversion or phase absent
(L1)
The compressor and the fans
do not start.
20
WARNING
Green LED = 0
Yellow LED =0
Phase absent (L2 or L3)
The compressor and the fans
do not start.