14 Electrical installation
Installation and operation manual
17
FXSA15~140A2VEB
VRV system air conditioner
3P599602-1 – 2020.05
WARNING
Use an all-pole disconnection type breaker with at least
3 mm between the contact point gaps that provide full
disconnection under overvoltage category III.
WARNING
If the supply cord is damaged, it MUST be replaced by the
manufacturer, its service agent or similarly qualified
persons in order to avoid a hazard.
14.1
Specifications of standard wiring
components
Component
Power
supply cable
MCA
(a)
Voltage
220~240 V
Phase
1~
Frequency
50/60 Hz
Wire sizes
1.5 mm
2
(3‑core wire)
H07RN-F (60245 IEC 66)
Transmission wiring
0.75 to 1.25 mm² (2‑core wire)
H05RN-F (60245 IEC 57)
User interface - maximum 500 m
User interface cable
Recommended field fuse
6 A
Residual current device
Must comply with applicable legislation
(a)
MCA=Minimum circuit ampacity. Stated values are maximum
values (see electrical data of indoor unit for exact values).
14‒1 Minimum circuit ampacity
Class
15~25
32
40~63
80
100
125
140
0.8 A
0.9 A
1.4 A
1.7 A
2 A
2.2 A
3 A
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 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.
2
User interface cable
: Route the cable through the frame,
connect the cable to the terminal block (symbols P1, P2) and fix
the cable with a tie wrap.
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), and fix the
cable with a tie wrap.
4
Power supply cable
: Route the cable through the frame and
connect the cable to the terminal block (L, N, earth).
a
b
a
Circuit breaker
b
Residual current device
10~15
70~90
7
P1P2 F1 F2
b
L N
10~15
70~90
10~20
a
c
a
Power supply and earth wiring
b
Service cover with wiring diagram
c
Transmission and user interface wiring
5
Plastic clamp for tie wrap:
Pass tie wraps through the plastic
clamps and fasten to fix the cables.
6
Wrap the cables with the sealing material (accessory) to
prevent water from entering the unit. Seal all gaps to prevent
small animals from entering the system.
A
A'
A
A'
A
A'
A
A'
A-A'
a b
c
c
a
Small sealing (accessory)
b
Wiring
c
Plastic clamp for tie wrap
7
Reattach the service cover.
Complete system example
1 user interface controls 1 indoor unit.
L
N
L
N
L
N
IN/D OUT/D
F
1
F
2
F
1
F
2
Control box
P
1
P
2
P
1
P
2
P
1
P
2
P
1
P
2
P
1
P
2
F
1
F
2
T
1
T
2
P
1
P
2
F
1
F
2
T
1
T
2
P
1
P
2
F
1
F
2
T
1
T
2
P
1
P
2
F
1
F
2
T
1
T
2
N L
a
d
c
b
L
N
N L
N L
N L
a
Outdoor unit
b
Indoor unit
c
User interface
d
Most downstream indoor unit
NOTICE
Group control connection is NOT allowed.
Summary of Contents for FXSA15A2VEB
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