Sanyo C4272R S/C - Manual (Page 58)

58
5-3. Wiring System Diagrams
Basic wiring diagram for standard control
U2
U1
L1
L2
U1
U2
1
2
G
2
1 WHT
Remote
controller
D
A
Indoor
unit
B
L1
L2
Grounding line
BLK 2
1
Inter-unit power line
208 / 230 V, 60 Hz
Power supply
208 / 230 V, 60Hz
Grounding line
C
Ground
Outdoor unit
INV unit
1
2
G
(1) Refer to Section 5-2. 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) Inter-Unit Control Wiring (C) and remote control-
ler wiring (D), (E) have no polarity. But for other
wiring, respect polarity. Be sure to connect as
shown in the Wiring System Diagram.
(3) In case of separate supply connection to indoor
unit, over current protection must be provided
between power source and indoor unit.
NOTE
1 2 G
Inter-unit
power wiring
U1
Inter-unit
control wiring
U2
5P terminal board
X, T, U Type
Remote
controller wiring
Inter-unit
control wiring
4P terminal board
1 2 G
Inter-unit
power wiring
U1 U2
K Type
Remote
controller wiring
Indoor Unit
Control Wiring
Type
(B) Power Supply
AWG #14
(C) Inter-Unit Control Wiring (D) Remote Control Wiring (E) Control Wiring For Group Control
Trade Size
of Conduit
MOP
(Fuse or HACR
type circuit breaker)
AWG #18
Use high voltage wire (300 V)
*1 AWG #18
*2
(0.75 mm
2
)
Max. 1,650 ft. Max. 3,300 ft. Max. 1,650 – ft. (Total)
AWG #18
*2
– (0.75 mm
2
)
3/4 in. 15 A Max. length 67 ft. X, K, T, U
*1 With ring-type wire terminal.
*2 Wire joint connection.
Inter-unit
power wiring
Power wiring Inter-unit
control wiring
8P terminal board
CH Type
U1 U2 1 2 G L1 L2
MAXIMUM OVER CURRENT PROTECTION 15 A
(FUSE OR HACRTYPE CIRCUIT BREAKER)
07-115 SSHP_II 5/7/07 4:00 PM Page 58