Sanyo Big PACi 18 Series Technical Data & Service Manual page 142

Wiring System Diagrams
(for 3-phase outdoor unit: X, K, T, U and D Types)
L
Power supply
N
220 – 240 V, 50/60 Hz*
Ground
Remote
controller
WHT
1 1
BLK 2 2
L
Power supply
N
220 – 240 V, 50/60 Hz*
Ground
Remote
controller
WHT
1 1
BLK 2 2
Group control:
L
Power supply
N
220 – 240 V, 50/60 Hz*
Ground
L
Power supply
N
220 – 240 V, 50/60 Hz*
Ground
Remote
controller
WHT
1 1
BLK 2 2
N O T E
(1) Refer to "Recommended Wire Length and Wire
Diameter for Power Supply System" for the
explanation of "A", "B", "C", "D" and "E" in the
above diagrams.
(2) The basic connection diagram of the indoor unit
shows the 7P terminal board, so the terminal boards
in your equipment may differ from the diagram.
(3) Refrigerant Circuit (R.C.) address should be set
before turning the power on.
Indoor
unit (No. 1)
L
N
C
B
U1
U2
D
Ground
1
2
Ground
C
Indoor
unit (No. 2)
L
N
B
U1
U2
D
1
2
Ground
C
Indoor
unit (No. 3)
L
N
B
U1
U2
E
1
2
Ground
C
Indoor
unit (No. n)
L
N
B
U1
U2
D
1
2
Ground
Outdoor unit
INV unit
A
1
U1
2
U2
3
4
5
* SPW-D905H is only 50 Hz.
1(L) 2(N)
Power
supply
8P terminal board
1 2 U1 U2
1(L)2(N)
Power Remote
supply controller
U1 U2
Inter-unit
control wiring
U, D Types
1-137
L1
Power supply
L2
380 – 415 V, 3N, ~ 50/60 Hz
L3
N
Ground
7P terminal board
U1 U2 R1 R2
Inter-unit Remote
control wiring controller
X, T Types
5P terminal board
R1 R2 1 2 3 4 5
R1 R2 1(L)2(N) U1 U2
Power
Inter-unit
supply
control wiring
K Type
1