18
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Electrical installation
Installer and user reference guide
69
FXUA50~100AVEB
VRV system air conditioner
4P673843-1 – 2022.01
18.2 To connect the electrical wiring to the indoor unit
NOTICE
▪
Follow the wiring diagram (delivered with the unit, located at the inside of the
service cover).
▪
For instructions on how to connect the optional equipment, see the installation
manual delivered with the optional equipment.
▪
Make sure the electrical wiring does NOT obstruct proper reattachment of the
service cover.
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. Remove the 2 screws and slide the service cover
out.
a
b
a
Service cover
b
Screw
2
User interface cable
: Route the cable through the frame and connect it to the
terminal block (P1, P2).
3
Transmission cable
: Route the cable through the frame and connect it to the
terminal block (make sure the symbols F1 and F2 match with the symbols on
the outdoor unit).
4
Power supply cable
: Route the cable through the frame and connect it to the
terminal block (L, N, earth).
a
b
a
Circuit breaker
b
Residual current device
5
Fix the user interface cable and transmission cable with a tie wrap.
N
L
60~80
10~20
10~40
30~35
7
b
c
a
a
Connection of user interface cable and transmission cable
