Daikin FXFQ20BVEB - To Connect the Electrical Wiring to the Indoor Unit

14 Electrical installation
Installation and operation manual
17
FXFQ20~125BVEB
VRV system air conditioner
4P540926-1F – 2023.06
Power supply
MCA
(a)
FXFQ20~40: 0.5A
FXFQ50: 0.6A
FXFQ63: 0.7A
FXFQ80: 1.2A
FXFQ100: 1.3A
FXFQ125: 1.4A
(a)
MCA=Minimum circuit ampacity. Stated values are maximum
values (see electrical data of indoor unit for exact values).
Components
Power supply cable MUST comply with national wiring
regulation.
3-core cable
Wire size based on the current, but not
less than 1.5mm
2
Transmission wiring Only use harmonised wire providing
double insulation and suitable for
applicable voltage
2-core cable
Minimum size 0.75mm
2
User interface cable Only use harmonised wire providing
double insulation and suitable for
applicable voltage
2-core cable
Minimum size 0.75mm
2
Maximum length 500m
Recommended circuit
breaker
6A
Residual current device MUST comply with national wiring
regulation
14.2 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 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 (symbols P1, P2).
3 Transmission cable: Route the cable through the frame,
connect the cable to the terminal block (make sure the symbols
F1, F2 match with the symbols on the outdoor unit). Bundle the
transmission cable with the user interface cable and fix them
with a tie wrap on the wiring fixture.
4 Power supply cable: Route the cable through the frame and
connect the cable to the terminal block (L, N, earth). Fix the
cable with a tie wrap on the wiring fixture.
a
b
a Circuit breaker
b Residual current device
5 Divide the small sealing (accessory) and wrap it around the
cables to prevent water from entering the unit.
6 Seal all gaps with a sealing material (field supply) to prevent
small animals from entering the system.
7 Reattach the service cover.
Wiring example
a
b
c
d
e
f
h
g
i
a Power supply
b Main switch
c Power supply wiring
d Transmission wiring
e Switch
f Circuit breaker
g BS unit (only REYQ)
h Indoor unit
i User interface
INFORMATION
For more system wiring examples, refer to the installer and
user reference guide at https://www.daikin.eu/. (see
"About this document"[44])