Electrical Requirement; Wiring Method; Unit Wiring - Fujitsu ABYA12-24LBTH Installation Manual

] 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
controller 0.33
cable
*: Use shielded cable in accordance with local rules for
remote controller cable.
Fuse capacity (A) Breaker for leakage current
15 30 mA 0.1 sec. or less
] 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
BREAKER
POWER POWER
SUPPLY SUPPLY
REMOTE
CONTROLLER
(Primary)
*Ground the remote controller if it has a ground wire.
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
INDOOR UNIT
INDOOR UNIT
TRANSMISSION
REMOTE POWER REMOTE
CONTROL SUPPLY CONTROL
BREAKER
POWER
SUPPLY
REMOTE
REMOTE
CONTROLLER
CONTROLLER
(Secondary)
] 1

6.3. Unit wiring

• Before attaching the cable to terminal block.
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 specifi ed 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 fi x 2 power supply cables with 1 screw.
Screw with
special washer
Cable end (Loop)
Cable
Terminal block
WARNING
• When using solid core cables, do not use the ring
terminal. If you use the solid core cables with the ring
terminal, the ring terminal's pressure bonding may
malfunction and cause the cables to abnormally heat up.
cable
Loop
Screw with
special
washer
Cable end
(Loop)
Cable
En-11