LG GHP SUPER - Page 48

48
ELECTRICAL WIRING
ENGLISH
Ɠ Caution 1.
R S T
N
Switch
Fuse
L
N
Communication Line
(2 Wires Cable)
Power Line
(4 Wires Cable)
Communication Line
(3 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
[Outdoor Unit]
[Indoor Units]
(Main Switch)
Pull Box
(Installer option)
Pull Box
(Installer option)
Pull Box
(Installer option)
Pull Box
(Installer option)
Outdoor
Power supply
(1Ø 2wires)
Indoor
Power supply
(1Ø 2wires)
Between outdoor and indoor units
Outdoor unit terminal block
Outdoor unit Indoor unitDry1 CENDry2GND
BABBA---- A
12 V
3(A)4(B) 3(A)4(B)3(A)4(B)
h Caution 1. It may be different according to specification of a voltage.
h Caution 1. It may be different according to specification of a voltage.
• Install the earth leakage circuit breaker.
• For the indoor unit grounding, the earth wire is needed to prevent the electric shock in
case of a short circuit, the communication problems due to noise, and the motor leakage
current. (It is not connected to piping.)
• Only one point grounding in the outdoor unit should be done for the transmission cable
grounding.
• Do not install any ‘individual switch or electrical outlet’ to disconnect each of indoor unit
separately from the power supply.
WARNING
!
h Caution 1. It may be different according to specification of a voltage.
Examples of Transmission Cable