40
CAUTION
Power supply cable must be routed separately from the other cable such as commucation wiring and display
box commucation wiring.
The strong and weak current wires must be separated.
3
Power supply cable connection
①
Connection between the power supply cable and power supply
terminal
The power supply terminal of the indoor unit is fixed on the
main control board, the power supply cable is connected to
the power supply terminal labeled "CN1" on the main control
board. The live and neutral wires are connected according to
the main control board logos "L" and "N", and the earth wires is
directly connected to the electric control box sheet metal part.
CAUTION
A
Do not bond and connect the power supply cable. Bonding and connecting the power supply cable
may cause it to heat up, resulting in a fire.
B
The power supply cable must be crimped
reliably using an insulated circular terminal
block, and then connected to the power supply
terminal of the indoor unit, as shown in the
figure below.
Power supply
cable
Circular
terminal
block
Insulation sleeve
C
If it fails to crimp the insulated circular terminal
block due to on-site limitations, connect the
power supply cable of the same diameter to
both sides of the power supply terminal block
of the indoor unit, as shown in the figure below.
D
Do not press the power supply cable of the same wire diameter on the same side of the terminal. Do
not use two power supply cable of different wire diameters for the same terminal blocks; otherwise,
they can easily loosen due to uneven pressure and cause accidents, as shown in the figure below.
Do not connect wires of
the same diameter on
the same side.
Do not connect wires
of different diameters.
CN1
L N
Main control board
Power input
Electric control
box sheet metal
part
Connect wires of the same
diameter on both sides.
