Samsung CNH NDB Series Technical Data Book page 87

Installation
Connecting the main power cable
When using ELB for AC018BXADCH (1-phase)
Power Supply
MCCB
ELB
Indoor Unit
When using ELB for AC024/030/036/042/048BXADCH (1-phase)
Power supply
MCCB
ELB
The appearance of the unit may be different
from the picture depending on the model.
Electrical
component box
Cable clamp
Outdoor to indoor
The appearance of the unit may be different from the picture
depending on the model.
Electrical
component box
Indoor Unit
1(L) 2(N) L N
Main power
power cable
cable
1(L) 2(N) L
Outdoor to indoor Main power
power cable cable
F1
F2
Cable tie
Communication
cable
F1 F2
N
Cable tie
Communication cable