26
31-5000755 Rev. 0
ENGLISH
CONTROL WIRING
Control Wire Drawing
Wired Controller ABC Chart
Length of Controller Wire ft (m) Wiring Dimensions AWG (mm2)
≤820(250)
18(0.75) x 3 core shielding line
• The shielding layer of the controller wire must be grounded at the outdoor unit chassis ground.
• The total length of the controller wire shall not be more than 820ft(250m)
P Q
P Q
A B C
P Q A B C
P Q A B C
A B C
Outdoor
Indoor 1
Indoor 4
Indoor 7
Indoor 2
Indoor 5
Indoor 8
Indoor 3
Indoor 6
Indoor 9
P Q A B C
P Q A B C
P Q A B C
P Q A B C
P Q A B C
P Q A B C
A B C
A B C
A B C
A B C
A B C
A B C
A B C
Wired controller
Wired controller
Wired controller
Wired controller
Wired controller
Wired controller Wired controller
Wired controller
Communication wire between
indoor & outdoor without polarity
Control wire for wired controller with polarity
