Electrical Connections - SystemAir ROOFTAIR Serie Manual De Instalación Y De Mantenimiento

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 amperage to the unit's main power
terminals, 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 amperage to the unit
terminals for starting.
3. Power supply cables' installation mode. (do not leave cable weight hang on connecting lugs)
4. Cables' capacity to transport the total system current draw.
Starting current and total current draw are indicated on the unit's wiring diagram.
Short circuit protection shall be provided by others. This protection shall comprise fuses or circuit breakers with
high breaking capacity, mounted on the distribution board. The distribution board must support the intensity of the
whole of the machines installed.
If the remote controls include an ambient temperature sensor and/or a room stat with temperature setting, these
shall be connected with shielded cable and shall not installed in the same conduit as the power supply cable to
avoid induced voltages and create faults in the unit's operation.
VERY IMPORTANT:
The outdoor unit is equipped as standard with a phase sequence and cut-out controller located in the electrical
box.
THIS PRODUCT IS EQUIPPED WITH A PHASE SEQUENCE CONTROLLER. THE LED's INDICATE THE
Green LED = 1
Yellow LED =1
Low voltage supply
T h e c o m p r e s s o r r o t a t i o n
direction is correct
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
FOLLOWING CONDITIONS:
Green LED = 1
Yellow LED =0
Phase inversion or phase absent
(L1)
The compressor and the fans
do not start.
17
WARNING
Green LED = 0
Yellow LED =0
Phase absent (L2 or L3)
the compressor and the fans do
not start.