6 Installation
Installer reference guide
14
FDXM25~60F3V1B
Split system air conditioners
4P482333-1 – 2017.03
▪ If stranded conductor wires are being used, install a round crimp-
style terminal on the tip. Place the round crimp-style terminal on
the wire up to the covered part and fasten the terminal with the
appropriate tool.
b
a
a
Stranded conductor wire
b
Round crimp-style terminal
▪ Use the following methods for installing wires:
Wire type
Installation method
Single core wire
c b
c
a
a
A
AA´
A´
a
Curled single core wire
b
Screw
c
Flat washer
Stranded conductor
wire with round
crimp-style terminal
c b
b
a
c
a
B
B
a
Terminal
b
Screw
c
Flat washer
6.4.4
To connect the electrical wiring on the
indoor unit
It is important to keep the power supply and the transmission wiring
separated from each other. In order to avoid any electrical
interference the distance between both wiring should always be at
least 50 mm.
NOTICE
Be sure to keep the power line and transmission line apart
from each other. Transmission wiring and power supply
wiring may cross, but may not run parallel.
1
Remove the service cover.
b
a
c
d
e
e
f
g
g
A B
A
Outside the unit
B
Inside the unit
a
Control box cover
b
Connection of interconnection cable (including earth)
c
Wiring diagram
d
Connection of user interface wiring
e
Sealing material (accessory)
f
Opening for cables
g
Wire
2
User interface cable
: Route the cable through the frame,
connect the cable to the terminal block, and fix the cable with a
cable tie.
3
Interconnection cable
(indoor↔outdoor): Route the cable
through the frame, connect the cable to the terminal block
(make sure the numbers match with the numbers on the
outdoor unit, and connect the earth wire), and fix the cable with
a cable tie.
4
Wrap the cables with the sealing material (accessory) to
prevent water from entering the unit. Seal all gaps to prevent
small animals from entering the system.
WARNING
Provide adequate measures to prevent that the unit can be
used as a shelter by small animals. Small animals that
make contact with electrical parts can cause malfunctions,
smoke or fire.
A
b
c
a
A
Indoor PC board (ASSY)
a
Power supply and earth wiring
b
Transmission and user interface wiring
c
Clamps
5
Reattach the service cover.
1~ 50 Hz
220-240 V
b
a
e
c
d
a
Interconnection cable
b
Power supply cable
c
Earth leakage circuit breaker
d
Fuse
e
User interface
