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6
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Installation
Installer reference guide
40
FNA25~60A2VEB(9)
Split system air conditioners
4P550955-3C – 2020.12
6.4.4 Specifications of standard wiring components
Component
Specification
Interconnection cable (indoor↔outdoor)
Minimum cable section of 2.5 mm²
and applicable for 230 V
H05RN-F (60245 IEC 57)
User interface cable
Vinyl cords with 0.75 to 1.25 mm²
sheath or cables (2‑core wires)
H03VV-F (60227 IEC 52)
Maximum 500 m
6.4.5 To connect the electrical wiring to 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
g
g
e
f
e
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.
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