n System wiring diagram
Switch
Earth leakage
breaker
Power source at indoor side
Single phase 220–240V, 50Hz
220V, 60Hz
n Connection summary for indoor unit/outdoor unit
Power source at
outdoor side
3-phase 380-415V, 50Hz
380V, 60Hz
Pull box
Power source at
indoor side
Single phase
220-240V, 50Hz
220V, 60Hz
Earth
Control transmission line
(1)
Remote control
(9)
Remote controller
Power source at
outdoor side
3-phase
380-415V, 50Hz
380V, 60Hz
L1
L2
L3 N
Earth
U1
U2
U5
U6
Control
transmission
line
L
N
U1
U2
Earth
A
B
Indoor unit
Indoor unit
Remote controller
Power source at outdoor side
3-phase 380–415V, 50Hz
380V, 60Hz
(2)
(3)
(4)
(10)
(11)
(12)
Power source at
outdoor side
3-phase
380-415V,50Hz
380V, 60Hz
L1
L2
L3 N
Earth
Earth
U1
U2
U5
U6
Connection of shield wire to close end
L
N
U1
U2
Earth
A
B
Indoor unit
Remote controller
10
Earth leakage breaker
Switch
Pull box
(5)
(6)
(7)
(13)
(14)
(15)
Power source at
outdoor side
3-phase
380-415V, 50Hz
380V, 60Hz
L1
L2
L3 N
Earth
U1
U2
U5
U6
U1
Earth
L
N
U1
U2
A
B
Remote controller
(8)
(16)
L1
L2
L3 N
U2
U5
U6
Earth