Wiring Design; Electrical Wiring - Fujitsu AOU48RLXFZ Design & Technical Manual

4.

WIRING DESIGN

4-1.

ELECTRICAL WIRING

PRECAUTION FOR ELECTRICAL WIRING
Regulation on wire diameter and selecting circuit breaker size differ from locality.
Install in accordance with local rules and regulations.
● Do not turn on the power until all installation work is complete.
● Before starting work, check that power is not being supplied to the unit.
● Connect the connection cable firmly to the terminal board. Imperfect installation may cause a fire.
● Always fasten the outside covering of the connection cable with the cord clamp. (If the insulator is
chafed, electric leakage may occur.)
● Always connect the ground wire.
● Never install a condenser for improving the power factor. (It will not improve the power factor and
the condenser will become abnormally hot.)
● When installing this system in high humidity locations, install using Ground fault equipment
breakers (often referred to in other countries as an ELCB earth leakage current breaker) to reduce
the risk of leaking current which may result in electric shock or potential fire.
● We suggest installing GFEB breakers or follow local electrical code. This system uses an inverter,
which means that when used with a ground fault breaker you must use breakers that can handle
higher harmonics such as a (GFEB) Ground Fault Equipment Breaker (30 mA or greater) in order
to prevent malfunctioning of ground fault device.
● This product is intended for professional use. Be sure to use a dedicated power circuit. Never use
a power supply shared by another appliance.
● Above "Wire size" and "Breaker" are examples.
● Regulation of wire and circuit breaker differs from each locality, refer in accordance with local
rules.
● To prevent the electrical noise malufunction and hazards from insulation failure, the unit should be
connected to ground.
● A disconnect switch may be required for ease of maintenance in accordance with local regulation
for each unit. Please check the local rules and regulations. Make the wire length between
disconnect switch and unit terminal as short as possible.
● All field wiring and components must be provided by a licensed electrician.
● Use copper conductors only.
● Use crimp-type terminals and tighten the terminal screws to the specified torques, otherwise,
abnormal overheating may be produced and possibly cause serious damage inside the unit.
● Prepare the one that the load current can be thrown enough in the capacity of the power supply.
Warning
Caution
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6. SYSTEM DESIGN