4 Installation
Installation and operation manual
8
FXFQ20~125BVEB
VRV system air conditioner
4P540926-1B – 2019.01
4.3.1
Specifications of standard wiring
components
Component
Class
20~40
50
63
80
100
125
Power
supply cable
MCA
(a)
0.5 A
0.6 A 0.7 A
1.2
A
1.3 A 1.4 A
Voltage
220~240 V
Phase
1~
Frequency
50/60 Hz
Wire sizes
Must comply with applicable legislation
Interconnection cable
4-core cable 1.5 mm
2
~2.5 mm
2
and
applicable for 220~240 V
H05RN-F (60245 IEC 57)
User interface cable
Vinyl cords with 0.75 to 1.25 mm² sheath
or cables (2‑core wires)
Maximum 500 m
H03VV-F (60227 IEC 52)
Recommended field fuse
16 A
Earth leakage circuit
breaker
Must comply with applicable legislation
(a)
MCA=Minimum circuit ampacity. Stated values are
maximum values (see electrical data of combination with
indoor units for exact values).
4.3.2
To connect the electrical wiring on 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 decoration panel
and the sensor kit, see the installation manual delivered
with the panel or the kit.
▪ 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.
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
Divide the small sealing (accessory) and wrap it around the
cables 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.
5
Reattach the service cover.
NOTICE
When closing the service cover, make sure that the
tightening torque for screws is ≤1.5N•m.
Wiring example
For complete system example refer to the installer and user
reference guide located on:
http://www.daikineurope.com/support-
and-manuals/product-information/
.
a
b
c
d
e
f
h
g
i
a
Power supply
b
Main switch
c
Power supply wiring
d
Unit interconnection wiring
e
Switch
f
Fuse
g
BS unit (only REYQ)
h
Indoor unit
i
User interface
a
(mm)
e
e
b
c
10~15
70~90
10~20
d
c
b
10~15
d
70~90
7
N
L
a
Service cover (with wiring diagram on the back)
b
Opening for cables
c
Connection of power supply (including earth)
d
Cable tie
e
Connection of user interface and interconnection cable
