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Cross-Sectional
Area (mm
2
)
(A) Power Supply Wiring Length (m)
(B) Power Line Length (m)
(A) + (B)
Fuse or
Circuit Breaker
Capacity
10A
3.5
51
41
2
33
27
C77 / 97
C127
Model
7-2. Recommended Wire Length and Diameter
Regulations on wiring diameter differ from locality to locality. For field wiring requirements, please refer to your
local electrical codes. Carefully observe these regulations when carrying out the installation.
Table 2 lists recommended wire lengths and diameters for power supply systems.
Refer to the wiring system diagram (Fig. 6) for the meaning of (A) and (B) in Table 2.
Table 2
NOTE
WIRING SYSTEM DIAGRAM
WARNING
Be sure to comply with local codes on running the
wire from the indoor unit to the outdoor unit (size of
wire and wiring method, etc.).
Each wire must be firmly connected.
No wire should be allowed to touch refrigerant tubing,
the compressor, or any moving part.
Be sure to connect the power supply line to the outdoor
unit as shown in the wiring diagram. The indoor unit
draws its power from the outdoor unit.
To avoid the risk of electrical shock, each air
conditioner unit must be grounded.
CAUTION
WARNING
Fig. 6
Grounding line
Grounding
line
INDOOR
UNIT
OUTDOOR
UNIT
1
2
3
Terminal
1
2
3
N
L
Terminal
Power supply
Single-phase 220-240VAC 50Hz
L
N
(B)
(A)
34