Electrical Wiring; Electrical Requirement - Fujitsu ASYE14 Installation Manual

5. ELECTRICAL WIRING

WARNING
• Electrical work must be performed in accordance with this
Manual by a person certifi ed under the national or regional
regulations. Be sure to use a dedicated circuit for the unit.
An insuffi cient power supply circuit or improperly performed
electrical work can cause serious accidents such as electric
shock or fi re.
• Before starting work, check that power is not being supplied
to the indoor unit and outdoor unit.
• For wiring, use the prescribed type of wires, connect them
securely, making sure that there are no external forces of the
wires applied to the terminal connections.
Improperly connected or secured wires can cause serious
accidents such as overheating the terminals, electric shock,
or fi re.
• Securely install the electrical box cover on the unit.
An improperly installed electrical box cover can cause
serious accidents such as electric shock or fire through
exposure to dust or water.
• Install sleeves into any holes made in the walls for wiring.
Otherwise, a short circuit could result.
• Use the included connection cables and power cables or
ones specifi ed by the manufacturer. Improper connections,
insuffi cient insulation, or exceeding the allowable current can
cause electric shock or fi re.
• Do not modify the power cables, use extension cables,
or use any branches in the wiring. Improper connections,
insuffi cient insulation, or exceeding the allowable current can
cause electric shock or fi re.
• Match the terminal block numbers and connection cable
colors with those of the outdoor unit. Erroneous wiring may
cause burning of the electric parts.
• Securely connect the connection cables to the terminal
board. In addition, secure the cables with wiring holders.
Improper connections, either in the wiring or at the ends of
the wiring, can cause a malfunction, electric shock, or fi re.
• Always fasten the outside covering of the connection cable
with the cable clamp. (If the insulator is chafed, electric
leakage may occur.)
• Install a ground leakage breaker. In addition, install the
ground leakage breaker so that the entire AC main power
supply is cut off at the same time. Otherwise, electric shock
or fi re could result.
• Install a ground leakage breaker.
If a ground leakage breaker is not installed, it may cause
electric shock or fi re.
• Always connect the ground cable.
Improper grounding work can cause electric shocks.
• Install the remote control cables so as not to be direct
touched with your hand.
• Perform wiring work in accordance with standards so that the
air conditioner can be operated safely and positively.
• Connect the connection cable fi rmly to the terminal board.
Imperfect installation may cause a fi re.
CAUTION
• Ground the unit.
Do not connect the ground cable to a gas pipe, water pipe,
lightning rod, or a telephone ground cable.
Improper grounding may cause electric shock.
• Do not connect power supply cables to the transmission or
remote control terminals, as this will damage the product.
• Never bundle the power supply cable and transmission cable
together. Bundling these cables together will cause miss
operation.
• When handling PCB, static electricity charged in the body
may cause malfunction of the PCB. Follow the cautions
below:
• Establish a ground for the indoor and outdoor units and
peripheral devices.
• Cut power (breaker) off.
• Touch metal part of the indoor and outdoor units for more
than 10 seconds to discharge static electricity charged in
the body.
• Do not touch terminals of parts and patterns implemented
on PCB.

5.1. Electrical requirement

Voltage rating 230 V
Operating range 198 - 264 V
Recommended
cable size
2
(mm )
Power supply
2.5
cable
Transmission
0.33
cable
Remote
0.33
control cable
*: Use shielded cable in accordance with local rules for remote
control cable.
Cable type Remark
Type245 1ø 50 Hz
IEC57 or 198–264 V
equivalent 2 Cable + ground
22 AWG LEVEL
4 (NEMA)
LONWORKS
non-polar 2 core,
compatible
twisted pair solid
cable
core diameter
0.65 mm
Sheathed PVC Polar 3 core
cable* Twisted pair
En-9