18
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 cross
section area for power supply systems.
Refer to the WIRING SYSTEM DIAGRAM for the
meaning of "A", "B" and "C" in Table 2.
●
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.
To avoid the risk of electric
shock, each air conditioner
unit must be grounded.
●
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.
2
4
2
4
11
INDOOR
UNIT
5
6
7
6
7
5
Terminal
OUTDOOR
UNIT
(B)
Power supply:
1-phase,
50 Hz, 240 VAC
Terminal
Power
line
Low voltage
line
(C)
(A)
8 8
2
1
Terminal
Grounding line
Power
line
7-3. Recommended Wire Length and Size
Table 2
Cross-Sectional (A) Power Supply Wiring Length (m) (B) Power Line (C) Control Line
Fuse or Circuit
Area (mm
2
)
2 3.5 5.5 8 14 2 0.75
Model
(#14) (#12) (#10) (#8) (#6) (#14) (#18)
Breaker Capacity
30 30 30 A
C302
#
…
AWG (American Wire Gauge)
– – 24 37 90
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