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18
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Electrical installation
Installer and user reference guide
66
b
P1P2 F1 F2
a
Opening for cables
b
Transmission and user interface wiring
c
Power supply wiring
d
Tie wrap (accessory)
X
Not allowed
O
Allowed
5 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.
6 Reattach the service cover.
Complete system example
1 user interface controls 1 indoor unit.
Control box
IN/D OUT/D
F
F
F
F
1
2
1
2
N
L
N L
P
P
F
F
T
T
1
2
1
2
1
2
b
P
P
1
2
c
a
Outdoor unit
b
Indoor unit
c
User interface
d
Most downstream indoor unit
NOTICE
Group control connection is NOT allowed.
CAUTION
▪
Each indoor unit has to be connected to a separate user interface. Only a safety
system compatible remote controller can be used as the user interface. See
technical data sheet for remote controller compatibility (e.g. BRC1H52/82*).
▪
The user interface has to be put in the same room as the indoor unit. For details,
please refer to the installation and operation manual of the user interface.
a
a
70~90
10~20
10~15
d
d
c
a
N
L
N
L
N L
N L
P
P
F
F
T
T
P
P
F
F
T
1
2
1
2
1
2
1
2
1
2
1
P
P
P
P
1
2
1
2
N
L
d
N L
T
P
P
F
F
T
T
2
1
2
1
2
1
2
P
P
1
2
VRV system air conditioner
4P599621-1A – 2020.10
FXDA10~63A2VEB
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Troubleshooting
