Electrical Requirement; Wiring Method; Unit Wiring - Fujitsu AUXB07L Installation Manual

• 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.

6.1. Electrical requirement

Voltage rating
Operating range 198 - 264 V
Recommended
cable size
(mm
Power supply
2.5
cable
Transmission
0.33
c able
Remote
0.33
control cable
*: Use shielded cable in accordance with local rules for
remote control cable.
En-10
CAUTION
230 V
Cable type Remark
2
)
1ø 50 Hz
Type245
198–264 V
IEC57 or
2 Cable +
equivalent
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

6.2. Wiring method

(EXAMPLE)
POWER SUPPLY
BREAKER
OUTDOOR UNIT
TRANSMISSION
POWER SUPPLY
INDOOR UNIT
TRANSMISSION TRANSMISSION
POWER SUPPLY REMOTE CONTROL POWER SUPPLY REMOTE CONTROL
BREAKER BREAKER
POWER SUPPLY
POWER SUPPLY
REMOTE
CONTROL UNIT
(MASTER)

6.3. Unit wiring

• Before attaching the
cable
6.3.1. Power supply cable
Earth cable
Power supply
A. For solid core wiring
(1) To connect the electrical terminal, follow the below diagram
and connect after looping it around the end of the cable.
(2) Use the specified cables, connect them securely, and fasten
them so that there is no stress placed on the terminals.
(3) Use an appropriate screwdriver to tighten the terminal
screws.
Do not use a screwdriver that is too small, otherwise, the
screw heads may be damaged and prevent the screws from
being properly tightened.
(4) Do not tighten the terminal screws too much, otherwise, the
screws may break.
(5) See the table for the terminal screw tightening torques.
(6) Please do not fix two power supply cables with one screw.
INDOOR UNIT INDOOR UNIT
TRANSMISSION
POWER SUPPLY REMOTE CONTROL
BREAKER
POWER SUPPLY
REMOTE
REMOTE
CONTROL UNIT
CONTROL UNIT
(SLAVE)
to terminal block.
cable