42
Figure
3
‐
9.2:
Indoor
unit
power
supply
wiring
9.3
Communication
Wiring
Communication
wiring
design
and
installation
should
adhere
to
the
following
requirements:
Outdoor unit
Outdoor unit
Outdoor unit
Outdoor unit
GND
GND
GND
GND
Branch box
Leakage
protector
Manual
switch
Leakage
protector
Manual
switch
GND
Branch box
Outdoor unit
GND
Outdoor unit
GND
Outdoor unit
GND
Outdoor unit
GND
Outdoor unit
GND
Outdoor unit
Power facilities 1
(with leakage protector)
Power facilities 2
(with leakage protector)
Leakage protector
Manual switch
Branch box
Indoor unit
1
9
2
10
3
11
4
12
5
13
6
14
7
15
8
16
The
3
‐
phase,
380
‐
415V,
50
or
60Hz
power
supply
should
be
connected
to
the
outdoor
unit
power
supply
terminals
as
shown
in
Figure
3
‐
9.3.
Figure
3
‐
9.3:
Outdoor
unit
3
‐
phase
power
supply
terminals
Notes
for
installers
A
B
C
N
Figure
3
‐
9.1:
Outdoor
unit
power
supply
wiring