13 Electrical installation
Installation and operation manual
19
FXSN50~112A2VEB
CO
₂
Conveni-Pack: indoor unit
4P602815-1C – 2020.05
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.
13.1
Specifications of standard wiring
components
Component
Class
50
71
112
Power
supply cable
MCA
(a)
1.4 A
2.0 A
2.9 A
Voltage
220~240 V
Phase
1~
Frequency
50/60 Hz
Wire sizes
2.5 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)
indoor↔outdoor - maximum 1000 m (total
wiring length 2000 m)
indoor↔user interface - maximum 500 m
User interface cable
Recommended field fuse
16 A
Residual current 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).
13.2
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
Appropriate measures (field supply):
If installation is required
in accordance with
"11.1.2 Additional installation site
13], connect them to the
terminal block (symbols T1, T2). See
appropriate measures for appliances filled with CO
20].
5
Power supply cable
: Route the cable through the frame and
connect the cable to the terminal block (L, N, earth).
10~15
70~90
7
P1P2 F1 F2 T1 T2
c
L N
10~15
70~90
10~20
a
b
a
Power supply and earth wiring
b
Service cover with wiring diagram
c
Transmission and user interface wiring
6
Fix the cables with a tie wrap.
7
Plastic clamp for tie wrap:
Pass tie wraps through the plastic
clamps and fasten to fix the cables.
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
8
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.
9
Reattach the service cover.
Complete system example
▪
Example:
1 user interface controls 1 indoor unit.
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
L N
L N
L N
L N
a
d
c
b
N
L
N
L
N
L
N
L
a
Outdoor unit
b
Indoor unit
c
User interface
d
Most downstream indoor unit
▪
Example:
Group control or use with 2 user interfaces.
