Samsung UH140GAMC Installation Manual page 12

Connecting the cable (Continued)
Wiring Diagram of Power Cable
When using ELBs for 3 phase and 1 phase
(UH140/105GAMC)
Single
ELB ELB
Phase
MCCB MCCB
MCCB
ELB
MCCB
12 12
E- E-
MCCB
Power Supply
Electrical component box
3 Phase
3 Wires
Indoor Unit
 The product is originally manufactured as 3 phases and 4 wires. To
change it into 3 phases and 3 wires, you must transfer A, B into L,
N terminal, which is supplied as a single phase power supply.
The diagram of 3 phases and 4 wires

(originally manufactured)
Cable
clamp
Communication Connection cord
Cable
The diagram of 3 phases and 3 wires(changed)

A B B
Cable
clamp
Connection cord
Communication
Cable
Main PCB
A B
Single
Phase
AC220V
3 Phase Power Cable
(AC 380V)
Main PCB
Single
Phase
AC220V
3 Phase Power Cable
(AC 380V)
ELB ELB
MCC