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Item
Power cable
Indoor
section
total
(mm
current (A)
<10
2
≥10 and <15
3.5
≥15 and <22
5.5
≥22 and <27
10
• Power cable and communication wire must be fixed firmly.
• Each indoor must be grounded well.
• When power cable exceeds the range, increase the gauge appropriately.
• Shielded layer of communication wires must be connected together and be earthed at single point.
• The total length of communication wire cannot exceed 1000m.
Communication wire for wired controller
Wire length(m)
≤ 250
• Shielded layer of communication wire must be grounded at one end.
• The total length cannot exceed 250m.
Outdoor unit electrical wiring diagram
Correct
Error
Rated current
Wire length
of overcurrent
(m)
breaker
2
)
(A)
23
20
24
30
27
40
42
50
When using a single terminal without terminal, the terminal can
not be directly used without flux. Otherwise, it will cause abnormal
heating of terminal crimping part. If a single core wiring is used in
the wiring, it can be connected directly in the manner shown in the
diagram.
Rated current of residual
circuit breaker(A)
Ground fault
interruptor(mA)
response time(S)
20A, 30mA, below 0.1s
30A, 30mA, below 0.1s
40A, 30mA, below 0.1s
50A, 30mA, below 0.1s
0.75mm
Ground wire
Power cord
Communication line
Fixing the power line and communication
line with a wire clip on the partition board
Power lines and communication
lines need to be flame retardant
and high temperature resistant
wire wrap
With plastic pipe insulation
on the refrigerant pipe
Protection of power line and
communication line hole with
wire sheath
Power line machinery and piping need
to be wrapped with flame retardant tape
32
Communication wire section
Outdoor/indoor
2
(mm
)
2-core × (0.75-2.0mm
shielded wire
Wire spec
2
×(3-core) shielded wire
Indoor/indoor
2
(mm
)
2
)
Cable sheath
Communication
line
Power cord
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