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5. ELECTRICAL WIRING
L
N
Power Supply
Signal wire between indoor/outdoor unit
L N
Branch Box
Power Supply
L1 L2 L3
Power Supply
Signal wire between indoor/outdoor unit
L N
Branch Box
Power Supply
Power (220-240V~ 50Hz 1-Phase)
(208-230V~ 60Hz 1-Phase)
Switch / Circuit breaker
Power wiring
(outdoor)
Outdoor
Unit
Communication Bus
Outdoor unit
X Y E
P Q E
Indoor unit
P
Q
E
X
Y
E
Branch Box
Outdoor unit
X Y E
P Q E
N
Indoor unit
P
Q
E
X
Y
E
Branch Box
Power (220-240V~ 50Hz 1-Phase)
(208-230V~ 60Hz 1-Phase)
Switch / Circuit breaker
Power wiring
(indoor)
Indoor
Unit
X
Y
E
CCM
Indoor unit
L N
P
Q
E
X
Y
E
Signal wire between indoor units
Please use 3-core shielded wire, and connect the shielded layer to Grounding
For 8~18kw(1-Phase)
X
Y
E
CCM
Indoor unit
L N
P
Q
E
X
Y
E
Signal wire between indoor units
Please use 3-core shielded wire, and connect the shielded layer to Grounding
For
10.5~18kw(3-Phase)
Wire distribution box
Indoor
Indoor
Unit
Unit
For 8~18kW
11
Indoor unit
L N
P
Q
E
X
Y
Branch Box
Indoor unit
L N
P
Q
E
X
Y
Branch Box
In broken line table, users can purchase the central
control montior when necessary.
Central control
monitor (CCM)
CCM
X
Y
E
E
Fig. 5-1
CCM
X
Y
E
E
Fig. 5-2
Computer
Fig. 5-3
V.2
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