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ELECTRICAL WIRING
Graphical Representation for Wiring
Outdoor 1
Connect the communication terminal block P and Q of the main unit of the outdoor units with the communication terminal
block P and Q of the connection kit.
P Q A B C
L N
P Q
B C
Outdoor Indoor
VP 1
Indoor 1
P Q A B C
Wired
A B C
controller
Notes:
(1) The above wiring example is only for reference. The number of connection kits and indoor units shall be subject to the
field installation.
(2) Two-core non-polar communication line with shield shall be adopted for communication lines between the connection
kit and the indoor/outdoor unit.
(3) All connection kits within one system may share one over current breaker for power supply. But it's necessary to
compute total current capacity specification.
(4) For wiring harness connected to the power terminal block, the terminal shall be pressed with a round (refer to the
following figure).
a) The power terminal block shall not be crimped with 2 wires of different diameters. Otherwise, a poor crimp connection
and looseness may lead to abnormal heating or arcing of the line.
b) Refer to the following figure for crimping wires with the same diameter.
20
Outdoor 2
A B C
L N
Outdoor
VP 2
Indoor 2
P Q A B C
Wired
CN12
A B C
controller
G
12V
Outdoor 1
Outdoor 2
communication wire
P Q A B C
A B C
with polarity
G
12V
L N
P Q
B C
Outdoor Indoor
VP 1
Indoor 2
Indoor 1
P Q A B C
P Q A B C
Wired
Wired
A B C
A B C
controller
controller
Round Terminal
Connect wires with
the same diameter
on both sides
Outdoor 3
A B C
The connumication wire of AH
L N
P Q
P Q
B C
devices and outdoor unit as well as
Outdoor Indoor
Indoor
between AH devices with non-polar.
VP 3
Indoor 3
P Q A B C
Wired
controller
A B C
Outdoor 3
A B C
L N
L N
P Q
B C
P Q
B C
Outdoor Indoor
Outdoor
Indoor
VP 2
VP 3
Indoor 4
Indoor 3
P Q A B C
P Q A B C
Wired
Wired
controller
A B C
A B C
controller
Insulating Sleeve
Wire
It's forbidden to
connect two wires
on one side
Indoor 5
B C
P Q A B C
Indoor 4
Indoor 6
P Q A B C
Wired
Wired
controller
A B C
CN12
controller
G 12V
G
12V
Indoor 5
P Q A B C
A B C
Indoor 6
P Q A B C
Wired
A B C
controller
Wires with different
diameters are not
allowed
A B C
P Q A B C
A B C
CN12
G 12V
G
12V
31-5000593 Rev. 0
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