18 | Electrical installation
Installer and user reference guide
67
FDA125A5VEB
Split system air conditioners
4P495031-1B – 2022.10
18.1.3 Specifications of standard wiring components
Component FDA125A
Power supply cable MCA
(a)
2.1A
Voltage 220~240V
Current 2.1A
Phase 1~
Frequency 50/60Hz
Wire sizes MUST comply with national wiring
regulation.
3-core cable
Wire size based on the current, but not
less than 2.5mm
2
Interconnection cable
(indoor↔outdoor)
Voltage 220~240V
Wire size Only use harmonised wire providing
double insulation and suitable for
applicable voltage.
4-core cable
Minimum 1.5mm
2
User interface cable Wire size Only use harmonised wire providing
double insulation and suitable for
applicable voltage
2-core wire
Wire length Maximum 500m
Recommended field fuse 16A
Earth leakage circuit breaker / residual
current device
MUST comply with national wiring
regulation
(a)
MCA=Minimum circuit ampacity. Stated values are maximum values (see electrical data of
indoor unit for exact values).
18.2 To connect the electrical wiring to the indoor unit
NOTICE
▪ Follow the wiring diagram (delivered with the unit, located on the switch box
cover).
▪ 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 50mm.
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.