7 Configuration
Installer reference guide
15
FDXM25~60F3V1B(9)
Split system air conditioners
4P550955-1 – 2018.07
Wire type
Installation method
Stranded conductor
wire with round
crimp-style terminal
c b
b
a
c
a
B
B
a
Terminal
b
Screw
c
Flat washer
O
Allowed
X
NOT allowed
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 wirings 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.
a c
b
d
A B
e
f
e
g
g
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
a
c
b
c
A
Indoor PCB (ASSY)
a
Power supply and earth wiring
b
Transmission and user interface wiring
c
Clamps
X
Not allowed
O
Allowed
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
6.4.5
Specifications of standard wiring
components
Component
Specification
Interconnection cable
(indoor↔outdoor)
Minimum cable section of
2.5 mm² and applicable for
230 V
User interface cable
Vinyl cords with 0.75 to
1.25 mm² sheath or cables
(2‑core wires)
Maximum 500 m
7
Configuration
7.1
Field settings
Make the following field settings so that they correspond with the
actual installation setup and with the needs of the user:
▪
External
static
pressure
setting.
See
the
technical
documentation for the range of the external static pressure setting.
▪
For heat pump.
If users experience cold feet during the heating
function, adjust the discharge grille as shown below.
