Electrical Requirement; Wiring Method; Unit Wiring - Fujitsu ARXC36L 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:
• E stablish 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.
] 1

6.1. Electrical requirement

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

6.2. Wiring method

(EXAMPLE)
POWER SUPPLY
BREAKER
OUTDOOR UNIT
TRANSMISSION
POWER SUPPLY
INDOOR UNIT
TRANSMISSION TRANSMISSION
POWER REMOTE POWER
SUPPLY CONTROL SUPPLY
BREAKER
POWER POWER SUPPLY
SUPPLY
REMOTE
CONTROL UNIT
(MASTER)
] 1

6.3. Unit wiring

• Before attaching the cable to terminal block.
6.3.1. Power supply cable
Earth cable
Power supply cable
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
TRANSMISSION
REMOTE POWER
CONTROL SUPPLY
BREAKER BREAKER
POWER
SUPPLY
REMOTE
CONTROL UNIT
(SLAVE)
INDOOR UNIT
REMOTE
CONTROL
REMOTE
CONTROL UNIT
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