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8-3. 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 regula-
tions when carrying out the installation.
Table 2 lists recommended wire lengths and size for power
supply systems.
NOTE
Refer to the WIRING SYSTEM DIAGRAM for the meaning of
"A" and "B" in Table 2.
Table 2
Cross Sectional
2
Area (mm
Model
CM1821AA
WARNING
WARNING
CAUTION
(A) Power Supply Wiring Length (m) (B) Power Line Length (m)
)
2mm 2
(#14)
18
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.
3.5mm 2
2mm 2
(#12)
29
# ······ AWG (American Wire Gauge)
Power supply:
50Hz,1-phase, 240 VAC
Unit
A
Unit
B
Indoor unit
18
Fuse or Circuit
Breaker Capacity
(#14)
20
WIRING SYSTEM DIAGRAM
Disconnect
switch
(Field supply)
(B)
1
1
2
2
4
4
5
6
7
1
8
2
9
10
4
11
12
Outdoor unit
Ground
15A
Power
supply
Grounding
(A)
line
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