48
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" and "B" in Table 2.
NOTE
●
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.
WARNING
WARNING
CAUTION
WIRING SYSTEM DIAGRAM
7-3. Recommended Wire Length and Size
Table 2
Cross-Sectional
Fuse or Circuit
Area (mm
2
)
2.5
2.5
Model
Breaker Capacity
AER518SC3 / AER518SCL3
20
30
20 A
22
20 A
AER522SC3 / AER522SCL3
16
mm
2
mm
2
(A) Power Supply Wiring Length (m)
(B) Power Line
AER518SC3
AER522SC3
2
1
2
1
INDOOR
UNIT
OUTDOOR
UNIT
B
N
L3
Power supply
380 – 400 V – 3N 50Hz
4
L1
L2
4
Ground
A
L1
L2
L3
N
AER518SCL3
AER522SCL3
