50
ELECTRICAL WIRING
ENGLISH
Between the Slave IDU To Master ODU
CN06-COMM-TB
Dry2
Dry1
CEN
IDU
ODU
GND
B
A
B
B
A
-
-
-
-
A
12 V
CN06-COMM-TB
Dry2
Dry1
CEN
IDU
ODU
GND
B
A
B
B
A
-
-
-
-
A
12 V
L
N
G
1.5mm
2
ƣ
1.5mm
2
ƣ
1.5mm
2
ƣ
Pull Box
h
GND is a "-" terminal for dry contact of the outdoor unit. GND does not mean ground.
h
Check if the terminals of the master and slave outdoor units are compatible (for example, A-A
and B-B).
h
Consider the capacity of all indoor units that are connected
• Install the ELCB.
• The indoor unit grounding needs the ground wire to prevent the indoor unit short circuit-
ing, to prevent a communication failure due to noise and to prevent a motor current leak-
age. (Not connected to piping)
• For communication cables, grounding should be done only to Single point ground of the
outdoor unit.
• Do not install an individual switch or an individual wall outlet which can block the power
supply to each indoor unit connected to the outdoor unit.
WARNING
!
Summary of Contents for GP-W500B6C
Page 90: ...90 ENGLISH ...
Page 91: ......